HOKA Chiang Mai Thailand by UTMBPAO Park, Chiang Mai, Thailand🇹🇭

About HOKA Chiang Mai Thailand by UTMB 2026

HOKA Chiang Mai Thailand by UTMB 2026 is a trail race held from Fri, Nov 27, 2026 to Sun, Dec 6, 2026 in PAO Park, Chiang Mai, Thailand; the start is at 07:00.

Registration is open; the deadline is Sat, Oct 31, 2026. Dates, registration windows and fees on this page are refreshed every morning by scanning federation, timing and organiser sites; registration always happens on the official race site.

Someone running 30 km a week needs 29 weeks, about 6.5 months, to prepare for the 173K course of HOKA Chiang Mai Thailand by UTMB 2026; that start day was Fri, May 8, 2026, so the window has passed with 6 weeks left to the race.

The event hub is PAO Park in Chiang Mai; starts are shared between this venue and the headquarters of Doi Inthanon National Park. The courses take their names from the region's mountains and cultural symbols: Chedi 20, Inthanon 20, Suthep 20, Hmong 50, Pagoda 50, Elephant 100, and Chiang Dao 160 categories, with some distances divided into day and night starts. One of the UTMB World Series legs with nine races ranging from 3 kilometers to 173 kilometers.

Courses

Course	Distance	Elevation Gain	Km-effort	Course file
173K	173 km	9800 m D+	271	GPX
100K	100 km	5500 m D+	155	GPX
63K	63 km	3000 m D+	93	GPX
57K	57 km	3600 m D+	93	GPX
26K	26 km	1100 m D+	37	GPX
20K	20 km	800 m D+	28	GPX
17K	17 km	700 m D+	24
5K	5 km	240 m D+	7	GPX
3K	3 km	100 m D+	4	GPX

There are 9 courses: 173K (9800 m D+); 100K (5500 m D+); 63K (3000 m D+); 57K (3600 m D+); 26K (1100 m D+); 20K (800 m D+); 17K (700 m D+); 5K (240 m D+); 3K (100 m D+).

Course map and elevation profile

173K course

100K course

63K course

57K course

26K course

20K course

5K course

3K course

What the weather is usually like here

Over the last 5 years this week typically ran 18°C to 27°C here, with a high of 31°C and a low of 11°C.
34% of those days saw rain. A real forecast lands about two weeks out and will appear here then.
Typical daily maximum wind was 6 km/h (calm), with 12 km/h the highest value in the sample.
It has been hot here before: if race week trends warm, scale your fluid plan up.
Sunrise 06:38, sunset 17:43.

The race is more than two weeks out, so these are averages of recent years for the same week, not a forecast. A real forecast appears here closer to the day.

Race briefing

173K course167 km · 9581 m gain · 39% uphill · 16 aid stations

Steep climb (10%+)
Climb (3-10%)
Flat
Descent
Steep descent (12%+)

The published GPX measures 167 km with 9581 m of climbing, 57 m per km. The course sits between 319 m and 1730 m of altitude. 52% of the gain sits in the first half.

0-9.3 km · Start → A1 Khiri Kiang Dao Garden Home: 220 m up / 191 m down; gently rolling.
9.3-23 km · A1 Khiri Kiang Dao Garden Home → A2 Ban Mae Mae School: 1170 m up / 812 m down; the stretch climbs.
23-33 km · A2 Ban Mae Mae School → A3 Pagia Highland Research Station: 980 m up / 200 m down; the stretch climbs.
33-43 km · A3 Pagia Highland Research Station → A4 Huay Kub Kab Village: 346 m up / 1035 m down; the stretch descends.
43-51 km · A4 Huay Kub Kab Village → A5 Sop Kai Village: 329 m up / 600 m down; the stretch descends.
51-65 km · A5 Sop Kai Village → A6 Doi Mon Ngo: 1108 m up / 569 m down; the stretch climbs.
65-72 km · A6 Doi Mon Ngo → A7 Mae Taeng Watershed Research Station: 146 m up / 620 m down; the stretch descends.
72-82 km · A7 Mae Taeng Watershed Research Station → A8 Pha Taek Village: 639 m up / 533 m down; the stretch keeps rolling.
82-92 km · A8 Pha Taek Village → A9 Wat Phraphutthabat Si Roi: 772 m up / 361 m down; the stretch climbs.
92-100 km · A9 Wat Phraphutthabat Si Roi → A10 Mae Ka Piang Village: 367 m up / 694 m down; the stretch descends.
100-110 km · A10 Mae Ka Piang Village → A11 Wat Pang Hai: 445 m up / 383 m down; the stretch keeps rolling.
110-116 km · A11 Wat Pang Hai → A12 Monjam: 637 m up / 173 m down; the stretch climbs.
116-130 km · A12 Monjam → A13 Maesa Elephant Camp: 737 m up / 1101 m down; the stretch descends.
130-139 km · A13 Maesa Elephant Camp → A14 Jaophorluangoppathum 7 School: 804 m up / 373 m down; the stretch climbs.
139-149 km · A14 Jaophorluangoppathum 7 School → A15 Wat Doi Pui: 575 m up / 729 m down; the stretch descends.
149-162 km · A15 Wat Doi Pui → A16 Mon Tha Than Waterfall: 271 m up / 1112 m down; the stretch descends.
162-167 km · A16 Mon Tha Than Waterfall → Finish: 34 m up / 206 m down; the stretch descends.

The race climbs from the gun: 72 m over the first 5 km. Do not chase the crowd, the two minutes you win here get taken back with interest.

The steepest wall stands between km 9 and km 16: 819 m over 6.7 km at 12% average, its steepest roughly 250 m section averaging 39% on the GPX trace. Heaviest kilometres: km 15 210 m, km 12 206 m, km 14 188 m, km 13 103 m. Running is off the table only in the steepest roughly 250 m core; hike that part with short steps and run again once the grade eases.

The backbone of the course runs from km 19 to km 34: net 977 m over 14 km at 7% average, its steepest roughly 250 m section averaging 28%, 1351 m of climbing in total with 374 m given back. Heaviest kilometres: km 31 207 m, km 30 157 m, km 23 129 m, km 21 108 m. This is hiking terrain, not running terrain. Walk it with intent and keep your heart rate off the ceiling.

The longest descent starts at km 146 and loses 1280 m by km 167 at 6% average, its steepest roughly 250 m section averaging 35% on the GPX trace. Its length can load the quads, so begin under control and build rhythm only when the ground and visibility allow it. The drop at km 34 averages 43% on the GPX trace over its steepest roughly 250 m section; shorten the stride, stay balanced and set speed to the ground instead of braking continuously.

The last 6 km drop 242 m. If anything is left in your legs, spend it here.

You reach the climb after A2 Ban Mae Mae School with about 812 m of descent already in your quads; treat its first half as recovery effort.

You reach the climb after A5 Sop Kai Village with about 600 m of descent already in your quads; treat its first half as recovery effort.

You reach the climb after A8 Pha Taek Village with about 533 m of descent already in your quads; treat its first half as recovery effort.

The leg from A12 Monjam to A13 Maesa Elephant Camp is long and unsupported: 14 km and 737 m of climbing with no aid in between, so leave A12 Monjam with full capacity.

You reach the climb after A13 Maesa Elephant Camp with about 1101 m of descent already in your quads; treat its first half as recovery effort.

The organiser lists 173 km; the published GPX measures 167 km. The technical course notes use the published GPX measurement.
This course reaches 1730 m. At the high-point coordinate, the same week historically ran 10°C to 20°C. Typical daily maximum wind was 7 km/h, reaching 14 km/h in the sample. This is climate history, not the race-day forecast; keep the shell accessible if race week looks similar.
Sunset is 17:43 and the finish cut-off is 10:00. A runner using the full time allowance spends the final 12 hours 55 minutes in darkness.
Get the headtorch out before sunset and keep spare batteries or a power bank dry and immediately accessible. A spare buried at the bottom of the pack is not an emergency spare.
Check reflective course markers regularly in the dark. If the markings disappear, stop moving forward, return to the last marker and confirm the route against the GPX or organiser app.
At cut-off pace you run into a second night. Plan the sleep question before race day: an hour gained on the first night costs two on the second.
Poles are strongly recommended for this profile. The course averages 57 m of gain per km and the longest climb averaging over 5% runs 14 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
18% of the course is steep descent. Increase your cadence instead of braking, or your quads go early.
Point to point: the finish sits 62.6 km from the start as the crow flies. Sort the shuttle and your drop bag before race day.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Key decision points

A2 Ban Mae Mae Schoolkm 23

Collect food and fluids and leave within 60-90 seconds.
Crew access is allowed here.
A heavy leg is next: 10 km with 1023 m of climbing.

A3 Pagia Highland Research Stationkm 33

Take hot food you digest easily and top up fluids.
A heavy leg is next: 10 km with 394 m of climbing.
Cut-off: 9h after the start.

A5 Sop Kai Villagekm 51

Take hot food you digest easily and top up fluids.
Your drop bag waits here; work off your prepared list.
Crew access is allowed here.
The heaviest leg is next: 13 km with 1191 m of climbing.
A 38% pitch starts about 1.8 km after the station; do not enter it cooled down.
Cut-off: 13h after the start.

A7 Mae Taeng Watershed Research Stationkm 72

Take hot food you digest easily and top up fluids.
Crew access is allowed here.
A heavy leg is next: 11 km with 494 m of climbing.
Cut-off: 18h after the start.

A9 Wat Phraphutthabat Si Roikm 92

Take hot food you digest easily and top up fluids.
Crew access is allowed here.
A heavy leg is next: 7.8 km with 384 m of climbing.

A11 Wat Pang Haikm 110

Take hot food you digest easily and top up fluids.
Your drop bag waits here; work off your prepared list.
Crew access is allowed here.
A heavy leg is next: 5.6 km with 549 m of climbing.
Cut-off: 31h after the start.

A12 Monjamkm 116

Collect food and fluids and leave within 60-90 seconds.
A heavy leg is next: 14 km with 493 m of climbing.
The longest unsupported stretch starts here: 14 km. Leave with full capacity.

A13 Maesa Elephant Campkm 130

Take hot food you digest easily and top up fluids.
Crew access is allowed here.
A heavy leg is next: 9.3 km with 832 m of climbing.
Cut-off: 37h 59m after the start.

The longest stretch between official aid stations runs from A12 Monjam (km 116) to A13 Maesa Elephant Camp (km 130): 14 km, with 493 m of climbing in between. Top up at A12 Monjam and size what you carry to the expected duration and your own drinking rate.
Drinks only, no food, at A1 Khiri Kiang Dao Garden Home (km 9). Loosen the flask caps on approach; with no queue, refill and leave in 20-30 seconds. Carry the food you will need from the previous station.
Hot food is served at A3 Pagia Highland Research Station (km 33) and A5 Sop Kai Village (km 51) and 5 more. If your stomach and race plan call for it, make this a deliberate 3-5 minute stop; do not sit down simply because hot food is available. Restart gently and let your stomach settle before lifting the effort.
Food is available at A2 Ban Mae Mae School (km 23) and A4 Huay Kub Kab Village (km 43) and 6 more. Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Drop bags at A5 Sop Kai Village (km 51) and A11 Wat Pang Hai (km 110). Write down the equipment and food you expect to replace before the race so the decision is already made when you arrive.
Crew support is permitted only at A2 Ban Mae Mae School (km 23), A5 Sop Kai Village (km 51), A7 Mae Taeng Watershed Research Station (km 72), A9 Wat Phraphutthabat Si Roi (km 92), A11 Wat Pang Hai (km 110), A13 Maesa Elephant Camp (km 130), and Chiang Mai PAO Park (km 173). This is not the same as a drop bag: plan equipment and food hand-offs around these stations, then verify wristband, bag and transport rules with the organiser.
The last aid station is A16 Mon Tha Than Waterfall (km 162), leaving 11 km to the finish. After that you are on what you carry.
The heaviest leg runs from A5 Sop Kai Village (km 51) to A6 Doi Mon Ngo (km 65): 13 km with 1191 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at ST Wat Tham Chiang Dao (km 0), A1 Khiri Kiang Dao Garden Home (km 9), A2 Ban Mae Mae School (km 23), A3 Pagia Highland Research Station (km 33), A4 Huay Kub Kab Village (km 43), A5 Sop Kai Village (km 51), A6 Doi Mon Ngo (km 65), A7 Mae Taeng Watershed Research Station (km 72), A8 Pha Taek Village (km 82), A9 Wat Phraphutthabat Si Roi (km 92), A10 Mae Ka Piang Village (km 100), A11 Wat Pang Hai (km 110), A12 Monjam (km 116), A13 Maesa Elephant Camp (km 130), A14 Jaophorluangoppathum 7 School (km 139), A15 Wat Doi Pui (km 149), A16 Mon Tha Than Waterfall (km 162), and Chiang Mai PAO Park (km 173). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 2 km after A5 Sop Kai Village (km 51), a roughly 250 m section averaging 38% begins. Choose food you know you digest easily and fill the bottles, then enter the climb at a controlled effort.
The overall cut-off is 48h, including all checkpoint stops. Build the plan around the official leg budgets below, not a flat-course average pace.
Relative to distance and climbing, the tightest official time budget runs from A5 Sop Kai Village (km 51) to A7 Mae Taeng Watershed Research Station (km 72): the official time budget is 5h for 20 km and 1254 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Official cut-off ladder

Leg	Distance	D+	Official time budget	Closes
Start → A3 Pagia Highland Research Stationpasses A1 Khiri Kiang Dao Garden Home, A2 Ban Mae Mae School, which has no time limit	33 km	2371 m	9h	start + 9h
A3 Pagia Highland Research Station → A5 Sop Kai Villagepasses A4 Huay Kub Kab Village, which has no time limit	18 km	675 m	4h	start + 13h
A5 Sop Kai Village → A7 Mae Taeng Watershed Research Stationpasses A6 Doi Mon Ngo, which has no time limit	20 km	1254 m	5h	start + 18h
A7 Mae Taeng Watershed Research Station → A10 Mae Ka Piang Villagepasses A8 Pha Taek Village, A9 Wat Phraphutthabat Si Roi, which has no time limit	29 km	1778 m	8h 30m	start + 26h 30m
A10 Mae Ka Piang Village → A11 Wat Pang Hai	9.8 km	445 m	4h 30m	start + 31h
A11 Wat Pang Hai → A13 Maesa Elephant Camppasses A12 Monjam, which has no time limit	20 km	1374 m	6h 59m	start + 37h 59m
A13 Maesa Elephant Camp → A16 Mon Tha Than Waterfallpasses A14 Jaophorluangoppathum 7 School, A15 Wat Doi Pui, which has no time limit	32 km	1650 m	8h 1m	start + 46h
A16 Mon Tha Than Waterfall → Chiang Mai PAO Park	11 km	34 m	2h	start + 48h

Budgets are derived from the cut-off times published by the organiser; they are not a personal finish estimate.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
ST Wat Tham Chiang DaoDrop bag	0	—	—	Yes	No	—
A1 Khiri Kiang Dao Garden Home	9.3	9.3	Drinks	Yes	No	—
A2 Ban Mae Mae School	23	13	Food	Yes	Yes	—
A3 Pagia Highland Research Station	33	10	Hot food	Yes	No	Friday 19:00
A4 Huay Kub Kab Village	43	10	Food	Yes	No	—
A5 Sop Kai VillageDrop bag	51	8.1	Hot food	Yes	Yes	Friday 23:00
A6 Doi Mon Ngo	65	13	Food	Yes	No	—
A7 Mae Taeng Watershed Research Station	72	7	Hot food	Yes	Yes	Saturday 04:00
A8 Pha Taek Village	82	11	Food	Yes	No	—
A9 Wat Phraphutthabat Si Roi	92	9.9	Hot food	Yes	Yes	—
A10 Mae Ka Piang Village	100	7.8	Food	Yes	No	Saturday 12:30
A11 Wat Pang HaiDrop bag	110	9.8	Hot food	Yes	Yes	Saturday 17:00
A12 Monjam	116	5.6	Food	Yes	No	—
A13 Maesa Elephant Camp	130	14	Hot food	Yes	Yes	Saturday 23:59
A14 Jaophorluangoppathum 7 School	139	9.3	Food	Yes	No	—
A15 Wat Doi Pui	149	9.9	Hot food	Yes	No	—
A16 Mon Tha Than Waterfall	162	13	Food	Yes	No	Sunday 08:00
Chiang Mai PAO ParkDrop bag	173	11	Hot food	Yes	Yes	Sunday 10:00

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

100K course100 km · 5330 m gain · 43% uphill · 9 aid stations

Steep climb (10%+)
Climb (3-10%)
Flat
Descent
Steep descent (12%+)

The published GPX measures 100 km with 5330 m of climbing, 54 m per km. The course sits between 319 m and 1600 m of altitude. 55% of the gain sits in the first half.

0-8.6 km · Start → A18 Wat Ban Iak: 368 m up / 197 m down; the stretch climbs.
8.6-20 km · A18 Wat Ban Iak → A9 Wat Phra Phutthabat Si Roi: 805 m up / 264 m down; the stretch climbs.
20-28 km · A9 Wat Phra Phutthabat Si Roi → A10 Mae Ka Piang Village: 361 m up / 737 m down; the stretch descends.
28-38 km · A10 Mae Ka Piang Village → A11 Wat Pang Hai: 578 m up / 439 m down; the stretch climbs.
38-43 km · A11 Wat Pang Hai → A12 Monjam: 547 m up / 157 m down; the stretch climbs.
43-58 km · A12 Monjam → A13 Maesa Elephant Camp: 476 m up / 1158 m down; the stretch descends.
58-67 km · A13 Maesa Elephant Camp → A14 Jaophorluangoppathum 7 School: 873 m up / 340 m down; the stretch climbs.
67-77 km · A14 Jaophorluangoppathum 7 School → A15 Wat Doi Pui: 852 m up / 443 m down; the stretch climbs.
77-90 km · A15 Wat Doi Pui → A16 Montha Than Waterfall: 299 m up / 1165 m down; the stretch descends.
90-100 km · A16 Montha Than Waterfall → Finish: 170 m up / 474 m down; the stretch descends.

The first 5 km climb 276 m and then drop 36 m. Do not attack the opening climb in the crowd, and do not brake your way down the drop behind it.

The backbone of the course runs from km 8 to km 22: net 837 m over 14 km at 6% average, its steepest roughly 250 m section averaging 22%, 1123 m of climbing in total with 286 m given back. Heaviest kilometres: km 21 157 m, km 22 147 m, km 11 141 m, km 14 123 m. This is hiking terrain, not running terrain. Walk it with intent and keep your heart rate off the ceiling.

The steepest wall stands between km 39 and km 46: net 608 m over 7.4 km at 8% average, its steepest roughly 250 m section averaging 35% on the GPX trace, 775 m of climbing in total with 167 m given back. Heaviest kilometres: km 42 255 m, km 46 128 m, km 44 94 m, km 41 92 m. By the time you start it, about 40% of the day's climbing is behind you. Trying to run this costs far more than it saves. Shorten the stride, lean on the poles, keep moving.

The climb between km 55 and km 63: 670 m over 7.6 km at 9% average, its steepest roughly 250 m section averaging 30%. Heaviest kilometres: km 61 209 m, km 60 196 m, km 58 90 m, km 62 82 m. Forcing a run up this climb takes more than it gives. Hike it and keep your heart rate away from the ceiling.

The longest descent starts at km 78 and loses 1279 m by km 100 at 6% average, its steepest roughly 250 m section averaging 26%. Its length can load the quads, so begin under control and build rhythm only when the ground and visibility allow it. The drop at km 46 averages 30% over its steepest roughly 250 m section; shorten the stride, stay balanced and set speed to the ground instead of braking continuously.

The last 6 km drop 289 m first and then climb 55 m. Empty your legs on the descent and that final rise takes the payment.

You reach the climb after A10 Mae Ka Piang Village with about 737 m of descent already in your quads; treat its first half as recovery effort.

You reach the climb after A11 Wat Pang Hai with about 439 m of descent already in your quads; treat its first half as recovery effort.

A steep pitch starts within about 1.1 km of A11 Wat Pang Hai; keep the stop short and do not enter it on cooled-down legs.

The leg from A12 Monjam to A13 Maesa Elephant Camp is long and unsupported: 14 km and 476 m of climbing with no aid in between, so leave A12 Monjam with full capacity.

You reach the climb after A13 Maesa Elephant Camp with about 1158 m of descent already in your quads; treat its first half as recovery effort.

This course reaches 1600 m. At the high-point coordinate, the same week historically ran 12°C to 20°C. Typical daily maximum wind was 8 km/h, reaching 14 km/h in the sample. This is climate history, not the race-day forecast; keep the shell accessible if race week looks similar.
Sunset is 17:45 and the finish cut-off is 12:00. A runner using the full time allowance spends the final 12 hours 53 minutes in darkness.
Get the headtorch out before sunset and keep spare batteries or a power bank dry and immediately accessible. A spare buried at the bottom of the pack is not an emergency spare.
Check reflective course markers regularly in the dark. If the markings disappear, stop moving forward, return to the last marker and confirm the route against the GPX or organiser app.
Poles are strongly recommended for this profile. The course averages 54 m of gain per km and the longest climb averaging over 5% runs 14 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
17% of the course is steep descent. Increase your cadence instead of braking, or your quads go early.
Point to point: the finish sits 27 km from the start as the crow flies. Sort the shuttle and your drop bag before race day.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Key decision points

A9 Wat Phra Phutthabat Si Roikm 20

Take hot food you digest easily and top up fluids.
Crew access is allowed here.
A heavy leg is next: 7.8 km with 379 m of climbing.

A10 Mae Ka Piang Villagekm 28

Collect food and fluids and leave within 60-90 seconds.
A heavy leg is next: 9.8 km with 586 m of climbing.
Cut-off: 8h after the start.

A11 Wat Pang Haikm 38

Take hot food you digest easily and top up fluids.
Crew access is allowed here.
A heavy leg is next: 5.6 km with 549 m of climbing.
Cut-off: 11h 30m after the start.

A12 Monjamkm 43

Collect food and fluids and leave within 60-90 seconds.
A heavy leg is next: 14 km with 493 m of climbing.
The longest unsupported stretch starts here: 14 km. Leave with full capacity.

A13 Maesa Elephant Campkm 58

Take hot food you digest easily and top up fluids.
Your drop bag waits here; work off your prepared list.
Crew access is allowed here.
A heavy leg is next: 9.3 km with 832 m of climbing.
Cut-off: 18h after the start.

A14 Jaophorluangoppathum 7 Schoolkm 67

Collect food and fluids and leave within 60-90 seconds.
The heaviest leg is next: 9.9 km with 854 m of climbing.
The climb starts immediately on exit (28%); keep the stop short.

The longest stretch between official aid stations runs from A12 Monjam (km 43) to A13 Maesa Elephant Camp (km 58): 14 km, with 493 m of climbing in between. Top up at A12 Monjam and size what you carry to the expected duration and your own drinking rate.
Drinks only, no food, at A18 Wat Ban Iak (km 9). Loosen the flask caps on approach; with no queue, refill and leave in 20-30 seconds. Carry the food you will need from the previous station.
Hot food is served at A9 Wat Phra Phutthabat Si Roi (km 20) and A11 Wat Pang Hai (km 38) and 2 more. If your stomach and race plan call for it, make this a deliberate 3-5 minute stop; do not sit down simply because hot food is available. Restart gently and let your stomach settle before lifting the effort.
Food is available at A10 Mae Ka Piang Village (km 28) and A12 Monjam (km 43) and 2 more. Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Drop bag at A13 Maesa Elephant Camp (km 58). Write down the equipment and food you expect to replace before the race so the decision is already made when you arrive.
Crew support is permitted only at A9 Wat Phra Phutthabat Si Roi (km 20), A11 Wat Pang Hai (km 38), A13 Maesa Elephant Camp (km 58), and Chiang Mai PAO Park (km 101). This is not the same as a drop bag: plan equipment and food hand-offs around these stations, then verify wristband, bag and transport rules with the organiser.
The last aid station is A16 Montha Than Waterfall (km 90), leaving 10 km to the finish. After that you are on what you carry.
The heaviest leg runs from A14 Jaophorluangoppathum 7 School (km 67) to A15 Wat Doi Pui (km 77): 10 km with 854 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at ST Wat Nhong Bua Noi (km 0), A18 Wat Ban Iak (km 9), A9 Wat Phra Phutthabat Si Roi (km 20), A10 Mae Ka Piang Village (km 28), A11 Wat Pang Hai (km 38), A12 Monjam (km 43), A13 Maesa Elephant Camp (km 58), A14 Jaophorluangoppathum 7 School (km 67), A15 Wat Doi Pui (km 77), A16 Montha Than Waterfall (km 90), and Chiang Mai PAO Park (km 101). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
The climbing starts the moment you leave A14 Jaophorluangoppathum 7 School (km 67): the steepest roughly 250 m section averages 28%. Choose food you know you digest easily and fill the bottles, then begin the climb under control.
The overall cut-off is 28h, including all checkpoint stops. Build the plan around the official leg budgets below, not a flat-course average pace.
Relative to distance and climbing, the tightest official time budget runs from A13 Maesa Elephant Camp (km 58) to A16 Montha Than Waterfall (km 90): the official time budget is 8h for 32 km and 2024 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Official cut-off ladder

Leg	Distance	D+	Official time budget	Closes
Start → A10 Mae Ka Piang Villagepasses A18 Wat Ban Iak, A9 Wat Phra Phutthabat Si Roi, which has no time limit	28 km	1535 m	8h	start + 8h
A10 Mae Ka Piang Village → A11 Wat Pang Hai	9.8 km	578 m	3h 30m	start + 11h 30m
A11 Wat Pang Hai → A13 Maesa Elephant Camppasses A12 Monjam, which has no time limit	20 km	1023 m	6h 30m	start + 18h
A13 Maesa Elephant Camp → A16 Montha Than Waterfallpasses A14 Jaophorluangoppathum 7 School, A15 Wat Doi Pui, which has no time limit	32 km	2024 m	8h	start + 26h
A16 Montha Than Waterfall → Chiang Mai PAO Park	11 km	170 m	2h	start + 28h

Budgets are derived from the cut-off times published by the organiser; they are not a personal finish estimate.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
ST Wat Nhong Bua NoiDrop bag	0	—	—	Yes	No	—
A18 Wat Ban Iak	8.6	8.6	Drinks	Yes	No	—
A9 Wat Phra Phutthabat Si Roi	20	12	Hot food	Yes	Yes	—
A10 Mae Ka Piang Village	28	7.8	Food	Yes	No	Friday 16:00
A11 Wat Pang Hai	38	9.8	Hot food	Yes	Yes	Friday 19:30
A12 Monjam	43	5.6	Food	Yes	No	—
A13 Maesa Elephant CampDrop bag	58	14	Hot food	Yes	Yes	Saturday 02:00
A14 Jaophorluangoppathum 7 School	67	9.3	Food	Yes	No	—
A15 Wat Doi Pui	77	9.9	Food	Yes	No	—
A16 Montha Than Waterfall	90	13	Hot food	Yes	No	Saturday 10:00
Chiang Mai PAO ParkDrop bag	101	11	Hot food	Yes	Yes	Saturday 12:00

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

63K course62 km · 2842 m gain · 26% uphill · 6 aid stations

Steep climb (10%+)
Climb (3-10%)
Flat
Descent
Steep descent (12%+)

The published GPX measures 62 km with 2842 m of climbing, 46 m per km. The course sits between 319 m and 1600 m of altitude. 64% of the gain sits in the first half.

0-8.4 km · Start → B1 Mae Klang Luang School: 160 m up / 122 m down; gently rolling.
8.4-20 km · B1 Mae Klang Luang School → B2 Pha Tang Junction: 461 m up / 273 m down; the stretch climbs.
20-29 km · B2 Pha Tang Junction → B3 Mae Uam Water Resource Management Office: 813 m up / 345 m down; the stretch climbs.
29-40 km · B3 Mae Uam Water Resource Management Office → B4 Mae Chaem Guard Unit: 999 m up / 460 m down; the stretch climbs.
40-48 km · B4 Mae Chaem Guard Unit → B5 Relic of the Buddha: 185 m up / 562 m down; the stretch descends.
48-57 km · B5 Relic of the Buddha → F Doi Inthanon National Park HQ: 169 m up / 843 m down; the stretch descends.
57-62 km · F Doi Inthanon National Park HQ → Finish: 55 m up / 238 m down; the stretch descends.

The race climbs from the gun: 81 m over the first 5 km. Do not chase the crowd, the two minutes you win here get taken back with interest.

The backbone of the course runs from km 19 to km 26: 649 m over 6.1 km at 11% average, its steepest roughly 250 m section averaging 29%. Heaviest kilometres: km 23 185 m, km 24 167 m, km 21 116 m, km 25 87 m. Running is off the table only in the steepest roughly 250 m core; hike that part with short steps and run again once the grade eases.

The climb between km 29 and km 33: 496 m over 4.6 km at 11% average, its steepest roughly 250 m section averaging 28%. Kilometre by kilometre: km 30 156 m, km 31 165 m, km 32 94 m, km 33 78 m. By the time you start it, about 50% of the day's climbing is behind you. The hard core of this climb is hiking ground; keep the rest at a steady effort and do not fight the wall when it arrives.

The longest descent starts at km 41 and loses 1269 m by km 61 at 6% average, its steepest roughly 250 m section averaging 28%. Its length can load the quads, so begin under control and build rhythm only when the ground and visibility allow it. The drop at km 33 averages 21% over its steepest roughly 250 m section; shorten the stride, stay balanced and set speed to the ground instead of braking continuously.

The last 6 km drop 224 m. If anything is left in your legs, spend it here.

A steep pitch starts within about 0.3 km of B3 Mae Uam Water Resource Management Office; keep the stop short and do not enter it on cooled-down legs.

The leg from B3 Mae Uam Water Resource Management Office to B4 Mae Chaem Guard Unit is long and unsupported: 11 km and 999 m of climbing with no aid in between, so leave B3 Mae Uam Water Resource Management Office with full capacity.

The organiser lists 3000 m of climbing; the published GPX measures 2842 m. The technical course notes use the published GPX measurement.
This course reaches 1600 m. At the high-point coordinate, the same week historically ran 12°C to 20°C. Typical daily maximum wind was 8 km/h, reaching 14 km/h in the sample. This is climate history, not the race-day forecast; keep the shell accessible if race week looks similar.
Consider bringing poles. The course averages 46 m of gain per km and the longest climb averaging over 5% runs 6.1 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
The climbing is stacked into the first half. Start easy; even with less climbing later, the descents and accumulated fatigue still have to be managed.
12% of the course is steep descent. Increase your cadence instead of braking, or your quads go early.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Key decision points

B3 Mae Uam Water Resource Management Officekm 29

Take hot food you digest easily and top up fluids.
A heavy leg is next: 11 km with 452 m of climbing.
The longest unsupported stretch starts here: 11 km. Leave with full capacity.
A 28% pitch starts about 1 km after the station; do not enter it cooled down.
Cut-off: 8h after the start.

B4 Mae Chaem Guard Unitkm 40

Take hot food you digest easily and top up fluids.
The heaviest leg is next: 7.5 km with 1193 m of climbing.
Cut-off: 11h after the start.

F Doi Inthanon National Park HQkm 57

Take hot food you digest easily and top up fluids.
Your drop bag waits here; work off your prepared list.
Crew access is allowed here.
Cut-off: 16h 30m after the start.

The longest stretch between official aid stations runs from B3 Mae Uam Water Resource Management Office (km 29) to B4 Mae Chaem Guard Unit (km 40): 11 km, with 452 m of climbing in between. Top up at B3 Mae Uam Water Resource Management Office and size what you carry to the expected duration and your own drinking rate.
Drinks only, no food, at B1 Mae Klang Luang School (km 8). Loosen the flask caps on approach; with no queue, refill and leave in 20-30 seconds. Carry the food you will need from the previous station.
Hot food is served at B3 Mae Uam Water Resource Management Office (km 29) and B4 Mae Chaem Guard Unit (km 40) and 1 more. If your stomach and race plan call for it, make this a deliberate 3-5 minute stop; do not sit down simply because hot food is available. Restart gently and let your stomach settle before lifting the effort.
Food is available at B2 Pha Tang Junction (km 20) and B5 Relic of the Buddha (km 48). Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Drop bag at F Doi Inthanon National Park HQ (km 57). Write down the equipment and food you expect to replace before the race so the decision is already made when you arrive.
Crew support is permitted only at ST Doi Inthanon National Park HQ (km 0) and F Doi Inthanon National Park HQ (km 57). This is not the same as a drop bag: plan equipment and food hand-offs around these stations, then verify wristband, bag and transport rules with the organiser.
The last aid station is F Doi Inthanon National Park HQ (km 57), leaving 6 km to the finish. After that you are on what you carry.
The heaviest leg runs from B4 Mae Chaem Guard Unit (km 40) to B5 Relic of the Buddha (km 48): 8 km with 1193 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at ST Doi Inthanon National Park HQ (km 0), B1 Mae Klang Luang School (km 8), B2 Pha Tang Junction (km 20), B3 Mae Uam Water Resource Management Office (km 29), B4 Mae Chaem Guard Unit (km 40), B5 Relic of the Buddha (km 48), and F Doi Inthanon National Park HQ (km 57). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 1 km after B3 Mae Uam Water Resource Management Office (km 29), a roughly 250 m section averaging 28% begins. Choose food you know you digest easily and fill the bottles, then enter the climb at a controlled effort.
Relative to distance and climbing, the tightest official time budget runs from B3 Mae Uam Water Resource Management Office (km 29) to B4 Mae Chaem Guard Unit (km 40): the official time budget is 3h for 11 km and 999 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Official cut-off ladder

Leg	Distance	D+	Official time budget	Closes
Start → B3 Mae Uam Water Resource Management Officepasses B1 Mae Klang Luang School, B2 Pha Tang Junction, which has no time limit	29 km	1434 m	8h	start + 8h
B3 Mae Uam Water Resource Management Office → B4 Mae Chaem Guard Unit	11 km	999 m	3h	start + 11h
B4 Mae Chaem Guard Unit → B5 Relic of the Buddha	7.5 km	185 m	3h 30m	start + 14h 30m
B5 Relic of the Buddha → F Doi Inthanon National Park HQ	9.1 km	169 m	2h	start + 16h 30m

Budgets are derived from the cut-off times published by the organiser; they are not a personal finish estimate.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
ST Doi Inthanon National Park HQDrop bag	0	—	—	Yes	Yes	—
B1 Mae Klang Luang School	8.4	8.4	Drinks	Yes	No	—
B2 Pha Tang Junction	20	11	Food	Yes	No	—
B3 Mae Uam Water Resource Management Office	29	9.1	Hot food	Yes	No	Sunday 02:00
B4 Mae Chaem Guard Unit	40	11	Hot food	Yes	No	Sunday 05:00
B5 Relic of the Buddha	48	7.5	Food	Yes	No	Sunday 08:30
F Doi Inthanon National Park HQDrop bag	57	9.1	Hot food	Yes	Yes	Sunday 10:30

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

57K course56 km · 3509 m gain · 42% uphill · 5 aid stations

Steep climb (10%+)
Climb (3-10%)
Flat
Descent
Steep descent (12%+)

The published GPX measures 56 km with 3509 m of climbing, 63 m per km. The course sits between 813 m and 2149 m of altitude. 53% of the gain sits in the first half.

0-8.4 km · Start → B1 Mae Klang Luang School: 317 m up / 495 m down; the stretch descends.
8.4-20 km · B1 Mae Klang Luang School → B2 Pha Tang Junction: 1186 m up / 661 m down; the stretch climbs.
20-29 km · B2 Pha Tang Junction → B3 Mae Uam Water Resource Management Office: 364 m up / 535 m down; the stretch descends.
29-40 km · B3 Mae Uam Water Resource Management Office → B4 Mae Chaem Guard Unit: 579 m up / 800 m down; the stretch descends.
40-48 km · B4 Mae Chaem Guard Unit → B5 Relic of the Buddha: 1032 m up / 215 m down; the stretch climbs.
48-56 km · B5 Relic of the Buddha → Finish: 30 m up / 803 m down; the stretch descends.

The first 4.5 km climb 241 m and then drop 224 m. Do not attack the opening climb in the crowd, and do not brake your way down the drop behind it.

The climb between km 7 and km 14: 832 m over 7 km at 12% average, its steepest roughly 250 m section averaging 26%. It tops out at 1850 m. Heaviest kilometres: km 13 173 m, km 14 151 m, km 12 137 m, km 11 125 m. Running is off the table only in the steepest roughly 250 m core; hike that part with short steps and run again once the grade eases.

The backbone of the course runs from km 38 to km 47: 1169 m over 8.4 km at 14% average, its steepest roughly 250 m section averaging 39% on the GPX trace. It tops out at 2143 m. Heaviest kilometres: km 42 222 m, km 46 202 m, km 45 194 m, km 44 166 m. By the time you start it, about 63% of the day's climbing is behind you. The hard core of this climb is hiking ground; keep the rest at a steady effort and do not fight the wall when it arrives.

The longest descent starts at km 47 and loses 887 m by km 55 at 10% average, its steepest roughly 250 m section averaging 41% on the GPX trace. Its length can load the quads, so begin under control and build rhythm only when the ground and visibility allow it. The drop at km 28 averages 41% on the GPX trace over its steepest roughly 250 m section; shorten the stride, stay balanced and set speed to the ground instead of braking continuously.

The last 6 km drop 501 m. If anything is left in your legs, spend it here.

You reach the climb after B1 Mae Klang Luang School with about 495 m of descent already in your quads; treat its first half as recovery effort.

The leg from B3 Mae Uam Water Resource Management Office to B4 Mae Chaem Guard Unit is long and unsupported: 11 km and 579 m of climbing with no aid in between, so leave B3 Mae Uam Water Resource Management Office with full capacity.

You reach the climb after B4 Mae Chaem Guard Unit with about 800 m of descent already in your quads; treat its first half as recovery effort.

The organiser lists 57 km; the published GPX measures 55.7 km. The technical course notes use the published GPX measurement.
This course reaches 2149 m. At the high-point coordinate, the same week historically ran 9°C to 17°C. Typical daily maximum wind was 7 km/h, reaching 13 km/h in the sample. This is climate history, not the race-day forecast; keep the shell accessible if race week looks similar.
Sunset is 17:47 and the finish cut-off is 23:30. A runner using the full time allowance spends the final 5 hours 43 minutes in darkness.
Get the headtorch out before sunset and keep spare batteries or a power bank dry and immediately accessible. A spare buried at the bottom of the pack is not an emergency spare.
Check reflective course markers regularly in the dark. If the markings disappear, stop moving forward, return to the last marker and confirm the route against the GPX or organiser app.
Poles are strongly recommended for this profile. The course averages 63 m of gain per km and the longest climb averaging over 5% runs 8.4 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
25% of the course is steep descent. Increase your cadence instead of braking, or your quads go early.
The high point is 2149 m. Coming from sea level, your heart rate and breathing shift at the same pace, so leave yourself room in the first hour.
The altitude is not a single summit: about 5.5 km of the course sits above 1800 m. The longest unbroken stretch up high is 4.7 km and the high zone spans roughly km 45 to km 49.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Key decision points

B3 Mae Uam Water Resource Management Officekm 29

Take hot food you digest easily and top up fluids.
A heavy leg is next: 11 km with 426 m of climbing.
The longest unsupported stretch starts here: 11 km. Leave with full capacity.
Cut-off: 8h after the start.

B4 Mae Chaem Guard Unitkm 40

Take hot food you digest easily and top up fluids.
The heaviest leg is next: 7.5 km with 1145 m of climbing.
The climb starts immediately on exit (39%); keep the stop short.
Cut-off: 11h after the start.

The longest stretch between official aid stations runs from B3 Mae Uam Water Resource Management Office (km 29) to B4 Mae Chaem Guard Unit (km 40): 11 km, with 426 m of climbing in between. Top up at B3 Mae Uam Water Resource Management Office and size what you carry to the expected duration and your own drinking rate.
Drinks only, no food, at B1 Mae Klang Luang School (km 8). Loosen the flask caps on approach; with no queue, refill and leave in 20-30 seconds. Carry the food you will need from the previous station.
Hot food is served at B3 Mae Uam Water Resource Management Office (km 29) and B4 Mae Chaem Guard Unit (km 40). If your stomach and race plan call for it, make this a deliberate 3-5 minute stop; do not sit down simply because hot food is available. Restart gently and let your stomach settle before lifting the effort.
Food is available at B2 Pha Tang Junction (km 20) and B5 Relic of the Buddha (km 48). Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Crew support is permitted only at ST Doi Inthanon National Park HQ (km 0) and F Doi Inthanon National Park HQ (km 57). This is not the same as a drop bag: plan equipment and food hand-offs around these stations, then verify wristband, bag and transport rules with the organiser.
The last aid station is B5 Relic of the Buddha (km 48), leaving 9 km to the finish. After that you are on what you carry.
The heaviest leg runs from B4 Mae Chaem Guard Unit (km 40) to B5 Relic of the Buddha (km 48): 8 km with 1145 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at ST Doi Inthanon National Park HQ (km 0), B1 Mae Klang Luang School (km 8), B2 Pha Tang Junction (km 20), B3 Mae Uam Water Resource Management Office (km 29), B4 Mae Chaem Guard Unit (km 40), B5 Relic of the Buddha (km 48), and F Doi Inthanon National Park HQ (km 57). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
The climbing starts the moment you leave B4 Mae Chaem Guard Unit (km 40): the steepest roughly 250 m section averages 39%. Choose food you know you digest easily and fill the bottles, then begin the climb under control.
The overall cut-off is 16h 30m, including all checkpoint stops. Build the plan around the official leg budgets below, not a flat-course average pace.
Relative to distance and climbing, the tightest official time budget runs from Start to B3 Mae Uam Water Resource Management Office (km 29): the official time budget is 8h for 29 km and 1868 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Official cut-off ladder

Leg	Distance	D+	Official time budget	Closes
Start → B3 Mae Uam Water Resource Management Officepasses B1 Mae Klang Luang School, B2 Pha Tang Junction, which has no time limit	29 km	1868 m	8h	start + 8h
B3 Mae Uam Water Resource Management Office → B4 Mae Chaem Guard Unit	11 km	579 m	3h	start + 11h
B4 Mae Chaem Guard Unit → B5 Relic of the Buddha	7.5 km	1032 m	3h 30m	start + 14h 30m
B5 Relic of the Buddha → F Doi Inthanon National Park HQ	9.1 km	30 m	2h	start + 16h 30m

Budgets are derived from the cut-off times published by the organiser; they are not a personal finish estimate.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
ST Doi Inthanon National Park HQDrop bag	0	—	—	Yes	Yes	—
B1 Mae Klang Luang School	8.4	8.4	Drinks	Yes	No	—
B2 Pha Tang Junction	20	11	Food	Yes	No	—
B3 Mae Uam Water Resource Management Office	29	9.1	Hot food	Yes	No	Saturday 15:00
B4 Mae Chaem Guard Unit	40	11	Hot food	Yes	No	Saturday 18:00
B5 Relic of the Buddha	48	7.5	Food	Yes	No	Saturday 21:30
F Doi Inthanon National Park HQDrop bag	57	9.1	Hot food	Yes	Yes	Saturday 23:30

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

26K course25 km · 1126 m gain · 36% uphill · 2 aid stations

Steep climb (10%+)
Climb (3-10%)
Flat
Descent
Steep descent (12%+)

The published GPX measures 25 km with 1126 m of climbing, 44 m per km. The course sits between 319 m and 1179 m of altitude. 83% of the gain sits in the first half.

0-4.9 km · Start → W4 Mae Chok Luang: 68 m up / 31 m down; gently rolling.
4.9-15 km · W4 Mae Chok Luang → A16 Montha Than Waterfall: 865 m up / 540 m down; the stretch climbs.
15-25 km · A16 Montha Than Waterfall → Finish: 193 m up / 556 m down; the stretch descends.

The first 2 km are close to flat, good for settling in. Do not set your pace here, the real course starts after.

The backbone of the course runs from km 1 to km 12: 855 m over 11 km at 7% average, its steepest roughly 250 m section averaging 31% on the GPX trace. Heaviest kilometres: km 6 183 m, km 7 161 m, km 9 161 m, km 12 108 m. This is hiking terrain, not running terrain. Walk it with intent and keep your heart rate off the ceiling.

The longest descent starts at km 12 and loses 859 m by km 25 at 6% average, its steepest roughly 250 m section averaging 40% on the GPX trace. Its length can load the quads, so begin under control and build rhythm only when the ground and visibility allow it.

The last 3 km are close to flat. Plan your finishing pace around that, there is nothing left to save.

The organiser lists 26 km; the published GPX measures 25.3 km. The technical course notes use the published GPX measurement.
This course reaches 1179 m. At the high-point coordinate, the same week historically ran 14°C to 22°C. Typical daily maximum wind was 8 km/h, reaching 16 km/h in the sample. This is climate history, not the race-day forecast; keep the shell accessible if race week looks similar.
Sunset is 17:45 and the finish cut-off is 23:30. A runner using the full time allowance spends the final 5 hours 45 minutes in darkness.
Get the headtorch out before sunset and keep spare batteries or a power bank dry and immediately accessible. A spare buried at the bottom of the pack is not an emergency spare.
Check reflective course markers regularly in the dark. If the markings disappear, stop moving forward, return to the last marker and confirm the route against the GPX or organiser app.
Poles are strongly recommended for this profile. The course averages 44 m of gain per km and the longest climb averaging over 5% runs 11 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
The climbing is stacked into the first half. Start easy; even with less climbing later, the descents and accumulated fatigue still have to be managed.
14% of the course is steep descent. Increase your cadence instead of braking, or your quads go early.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Key decision points

W4 Mae Chok Luangkm 4.9

Drinks only; arrive carrying your own food.
The heaviest leg is next: 9.7 km with 863 m of climbing.
A 31% pitch starts about 0.8 km after the station; do not enter it cooled down.

A16 Montha Than Waterfallkm 15

Collect food and fluids and leave within 60-90 seconds.
The longest unsupported stretch starts here: 11 km. Leave with full capacity.
Cut-off: 5h after the start.

The longest stretch between official aid stations runs from A16 Montha Than Waterfall (km 15) to Chiang Mai PAO Park (km 26): 11 km, with 196 m of climbing in between. Top up at A16 Montha Than Waterfall and size what you carry to the expected duration and your own drinking rate.
Drinks only, no food, at W4 Mae Chok Luang (km 5). Loosen the flask caps on approach; with no queue, refill and leave in 20-30 seconds. Carry the food you will need from the previous station.
Food is available at A16 Montha Than Waterfall (km 15). Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Crew support is permitted only at Chiang Mai PAO Park (km 26). This is not the same as a drop bag: plan equipment and food hand-offs around these stations, then verify wristband, bag and transport rules with the organiser.
The heaviest leg runs from W4 Mae Chok Luang (km 5) to A16 Montha Than Waterfall (km 15): 10 km with 863 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at Chiang Mai PAO Park (km 0), W4 Mae Chok Luang (km 5), A16 Montha Than Waterfall (km 15), and Chiang Mai PAO Park (km 26). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 0.8 km after W4 Mae Chok Luang (km 5), a roughly 250 m section averaging 31% begins. Only drinks are served here, so fill the bottles and carry your own food in, then enter the climb at a controlled effort.
The overall cut-off is 7h 30m, including all checkpoint stops. Build the plan around the official leg budgets below, not a flat-course average pace.
Relative to distance and climbing, the tightest official time budget runs from A16 Montha Than Waterfall (km 15) to Chiang Mai PAO Park (km 26): the official time budget is 2h 30m for 11 km and 193 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
Chiang Mai PAO ParkDrop bag	0	—	—	Yes	No	—
W4 Mae Chok Luang	4.9	4.9	Drinks	Yes	No	—
A16 Montha Than Waterfall	15	9.7	Food	Yes	No	Saturday 21:00
Chiang Mai PAO ParkDrop bag	26	11	Hot food	Yes	Yes	Saturday 23:30

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

20K course20 km · 814 m gain · 26% uphill · 2 aid stations

Steep climb (10%+)
Climb (3-10%)
Flat
Descent
Steep descent (12%+)

The published GPX measures 20 km with 814 m of climbing, 40 m per km. The course sits between 995 m and 1453 m of altitude. 53% of the gain sits in the first half.

0-9.8 km · Start → B6 Pha Mon Village: 430 m up / 488 m down; the stretch keeps rolling.
9.8-16 km · B6 Pha Mon Village → B1 Mae Klang Luang Village: 106 m up / 220 m down; the stretch keeps rolling.
16-20 km · B1 Mae Klang Luang Village → Finish: 278 m up / 103 m down; the stretch climbs.

The first 1.6 km are close to flat, good for settling in. Do not set your pace here, the real course starts after.

The climb between km 0 and km 3: net 205 m over 3.1 km at 7% average, its steepest roughly 250 m section averaging 21%, 238 m of climbing in total with 33 m given back. Kilometre by kilometre: km 1 25 m, km 2 103 m, km 3 100 m. This is hiking terrain, not running terrain. Walk it with intent and keep your heart rate off the ceiling.

The backbone of the course runs from km 14 to km 19: net 280 m over 4.7 km at 6% average, its steepest roughly 250 m section averaging 27%, 329 m of climbing in total with 49 m given back. Kilometre by kilometre: km 16 64 m, km 17 49 m, km 18 119 m, km 19 84 m. Trying to run this costs far more than it saves. Shorten the stride, lean on the poles, keep moving.

The longest descent starts at km 7 and loses 288 m by km 14 at 4% average, its steepest roughly 250 m section averaging 14%. Its length can load the quads, so begin under control and build rhythm only when the ground and visibility allow it. The drop at km 3 averages 30% over its steepest roughly 250 m section; shorten the stride, stay balanced and set speed to the ground instead of braking continuously.

The last 2.4 km climb 79 m to the line. Know it going in and save something for it.

Even at cut-off pace you finish 2 hours 47 minutes before sunset. This one is run entirely in daylight.
Consider bringing poles. The course averages 40 m of gain per km and the longest climb averaging over 5% runs 4.7 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
18% of the course is steep descent. Increase your cadence instead of braking, or your quads go early.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Key decision points

B1 Mae Klang Luang Villagekm 16

Collect food and fluids and leave within 60-90 seconds.
A heavy leg is next: 4.6 km with 271 m of climbing.
A 27% pitch starts about 2 km after the station; do not enter it cooled down.
Cut-off: 6h 30m after the start.

The longest gap between official aid stations is 10 km, with 431 m of climbing in between, from Doi Inthanon National Park Headquarters (km 0) to B6 Pha Mon Village (km 10). Split your fluid accordingly.
Food is available at B6 Pha Mon Village (km 10) and B1 Mae Klang Luang Village (km 16). Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Crew support is permitted only at Doi Inthanon National Park Headquarters (km 20). This is not the same as a drop bag: plan equipment and food hand-offs around these stations, then verify wristband, bag and transport rules with the organiser.
Another heavy leg runs from B1 Mae Klang Luang Village (km 16) to Doi Inthanon National Park Headquarters (km 20): 5 km with 271 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at Doi Inthanon National Park Headquarters (km 0), B6 Pha Mon Village (km 10), B1 Mae Klang Luang Village (km 16), and Doi Inthanon National Park Headquarters (km 20). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 2 km after B1 Mae Klang Luang Village (km 16), a roughly 250 m section averaging 27% begins. Choose food you know you digest easily and fill the bottles, then enter the climb at a controlled effort.
The overall cut-off is 8h, including all checkpoint stops. Build the plan around the official leg budgets below, not a flat-course average pace.
Relative to distance and climbing, the tightest official time budget runs from B1 Mae Klang Luang Village (km 16) to Doi Inthanon National Park Headquarters (km 20): the official time budget is 1h 30m for 5 km and 278 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
Doi Inthanon National Park HeadquartersDrop bag	0	—	—	Yes	No	—
B6 Pha Mon Village	9.8	9.8	Food	Yes	No	—
B1 Mae Klang Luang Village	16	6.1	Food	Yes	No	Sunday 13:30
Doi Inthanon National Park HeadquartersDrop bag	20	4.6	Hot food	Yes	Yes	Sunday 15:00

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

5K course5 km · 371 m gain · 77% uphill · 2 aid stations

Steep climb (10%+)
Climb (3-10%)
Flat

The published GPX measures 4.6 km with 371 m of climbing, 80 m per km. The course sits between 1238 m and 1328 m of altitude. 63% of the gain sits in the first half.

The organiser lists 240 m of climbing; the published GPX measures 371 m. The technical course notes use the published GPX measurement.
Even at cut-off pace you finish 8 hours 47 minutes before sunset. This one is run entirely in daylight.
The climbing is stacked into the first half. Start easy; even with less climbing later, the descents and accumulated fatigue still have to be managed.
A single loop: start and finish share the same spot. Around 29% of the ground is covered twice.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Drinks only, no food, at W1 Siri Phum Waterfall (km 2). Loosen the flask caps on approach; with no queue, refill and leave in 20-30 seconds. Carry the food you will need from the previous station.
Food is available at Doi Inthanon National Park Headquarters (km 5). Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Drop bag at Doi Inthanon National Park Headquarters (km 5). Write down the equipment and food you expect to replace before the race so the decision is already made when you arrive.
Medical support is available at Doi Inthanon National Park Headquarters (km 5). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
The overall cut-off is 1h 30m, including all checkpoint stops. Build the plan around the official leg budgets below, not a flat-course average pace.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
Doi Inthanon National Park Headquarters	0	—	—	No	No	—
W1 Siri Phum Waterfall	2.5	2.5	Drinks	No	No	—
Doi Inthanon National Park HeadquartersDrop bag	4.8	2.3	Food	Yes	No	Sunday 09:00

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

3K course3 km · 210 m gain · 9% uphill · 2 aid stations

Climb (3-10%)
Flat
Descent

The published GPX measures 2.8 km with 210 m of climbing, 76 m per km. The course sits between 290 m and 347 m of altitude.

The organiser lists 100 m of climbing; the published GPX measures 210 m. The technical course notes use the published GPX measurement.
Sunset is 17:45 and the finish cut-off is 20:00. A runner using the full time allowance spends the final 1 hour 30 minutes in darkness.
Get the headtorch out before sunset and keep spare batteries or a power bank dry and immediately accessible. A spare buried at the bottom of the pack is not an emergency spare.
Check reflective course markers regularly in the dark. If the markings disappear, stop moving forward, return to the last marker and confirm the route against the GPX or organiser app.

Course-profile notes are generated from GPX grade data; terrain, rules, aid stations and weather are added only when separately sourced.

Aid stations

Drinks only, no food, at W2 Reservoir (km 2). Loosen the flask caps on approach; with no queue, refill and leave in 20-30 seconds. Carry the food you will need from the previous station.
Food is available at Chiang Mai PAO Park (km 3). Decide what you need before reaching the table; without a planned special task, collect food and fluids and leave within 60-90 seconds. Finish eating on the next calm, suitable section.
Drop bag at Chiang Mai PAO Park (km 3). Write down the equipment and food you expect to replace before the race so the decision is already made when you arrive.
Medical support is available at Chiang Mai PAO Park (km 3). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 0.3 km after W2 Reservoir (km 2), a roughly 250 m section averaging 12% begins. Only drinks are served here, so fill the bottles and carry your own food in, then enter the climb at a controlled effort.
The overall cut-off is 1h 30m, including all checkpoint stops. Build the plan around the official leg budgets below, not a flat-course average pace.

Station	Km	From previous	Supplies	Medical	Crew	Cut-off
Chiang Mai PAO Park	0	—	—	No	No	—
W2 Reservoir	1.6	1.6	Drinks	No	No	—
Chiang Mai PAO ParkDrop bag	2.9	1.2	Food	Yes	No	Friday 20:00

Aid station details come from the list published by the organiser; confirm them at the official source before race day.

Plan your cutoffs for this course

Calculators for this race

Cutoff plan Trail effort distance Race time predictor Race fuelling Pace calculator Training lead time

Registration

StandardWed, Jul 1, 2026 - Sat, Oct 31, 2026Registration open

Data sources: UTMB World Series, official site (chiangmai.utmb.world) · Last checked: Tue, Oct 13, 2026

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Frequently asked questions

(38)

What is HOKA Chiang Mai Thailand by UTMB?

When is HOKA Chiang Mai Thailand by UTMB 2026?

HOKA Chiang Mai Thailand by UTMB takes place on Fri, Nov 27, 2026 - Sun, Dec 6, 2026. Start time: 07:00.

Where does HOKA Chiang Mai Thailand by UTMB take place?

HOKA Chiang Mai Thailand by UTMB takes place in PAO Park, Chiang Mai, Thailand.

What are the courses and distances of HOKA Chiang Mai Thailand by UTMB 2026?

HOKA Chiang Mai Thailand by UTMB offers 9 courses: 173K (173 km, 9800 m D+); 100K (100 km, 5500 m D+); 63K (63 km, 3000 m D+); 57K (57 km, 3600 m D+); 26K (26 km, 1100 m D+); 20K (20 km, 800 m D+); 17K (17 km, 700 m D+); 5K (5 km, 240 m D+); 3K (3 km, 100 m D+).

How hard is HOKA Chiang Mai Thailand by UTMB 2026?

Difficulty is measured in km-effort: distance plus ascent divided by 100. The 173K course covers 173 km with 9800 m of climbing, which is 271 km-effort and falls in ITRA category XXL. All courses: 173K 271 km-effort (XXL), 100K 155 km-effort (XL), 63K 93 km-effort (M), 57K 93 km-effort (M), 26K 37 km-effort (XS), 20K 28 km-effort (XS), 17K 24 km-effort (XXS), 5K 7 km-effort (XXS), 3K 4 km-effort (XXS).

Is registration for HOKA Chiang Mai Thailand by UTMB 2026 open?

Registration appears to be open; the deadline is Sat, Oct 31, 2026.

When is the registration deadline for HOKA Chiang Mai Thailand by UTMB 2026?

The registration deadline for HOKA Chiang Mai Thailand by UTMB is Sat, Oct 31, 2026.

Where are the HOKA Chiang Mai Thailand by UTMB photos?

HOKA Chiang Mai Thailand by UTMB photos are in the organiser's gallery: https://chiangmai.utmb.world/get-excited/photos. The gallery may also cover earlier editions.

What is the official website of HOKA Chiang Mai Thailand by UTMB?

Official website: https://chiangmai.utmb.world/

Is the HOKA Chiang Mai Thailand by UTMB 2026 course a loop or an out and back?

The 173K course is point to point, finishing 62.6 km from the start; measured from the GPX file it runs 167.5 km. The 100K course is point to point, finishing 27 km from the start; measured from the GPX file it runs 99.6 km. The 63K course is a single loop with a shared start and finish; measured from the GPX file it runs 62.4 km.

Where is the hardest climb at HOKA Chiang Mai Thailand by UTMB 2026?

The biggest climb on the 173K course runs from km 19 to km 34: 14.4 km for 977 m at 7% average; its steepest roughly 250 m section averages 28%. It tops out at 1717 m.

How high does HOKA Chiang Mai Thailand by UTMB 2026 go?

The 173K course runs between 319 m and 1730 m with 9581 m of total climbing.

Do you need poles at HOKA Chiang Mai Thailand by UTMB 2026?

The 173K course averages 57 m of gain per km with a longest climb of 14.4 km, so poles help noticeably.

Do you need a headtorch at HOKA Chiang Mai Thailand by UTMB 2026?

173K: Sunset is 17:43 and the finish cut-off is 10:00. A runner using the full time allowance spends the final 12 hours 55 minutes in darkness. Get the headtorch out before sunset and keep spare batteries or a power bank dry and immediately accessible. A spare buried at the bottom of the pack is not an emergency spare. Check reflective course markers regularly in the dark. If the markings disappear, stop moving forward, return to the last marker and confirm the route against the GPX or organiser app. At cut-off pace you run into a second night. Plan the sleep question before race day: an hour gained on the first night costs two on the second.

What is the weather like at HOKA Chiang Mai Thailand by UTMB 2026?

Over the last 5 years the same week here measured 18°C to 27°C, with a high of 31°C, a low of 11°C and rain on 34% of days. A real forecast lands about two weeks out.

Where are the aid stations at HOKA Chiang Mai Thailand by UTMB 2026?

The 173K course has 16 stations; the first at km 9 and the last at km 162. The longest gap between them is 14 km, between A12 Monjam and A13 Maesa Elephant Camp.

What is served at the HOKA Chiang Mai Thailand by UTMB 2026 aid stations?

For the 173K course: Hot food: A3 Pagia Highland Research Station (33. km), A5 Sop Kai Village (51. km), A7 Mae Taeng Watershed Research Station (72. km), A9 Wat Phraphutthabat Si Roi (92. km), A11 Wat Pang Hai (110. km), A13 Maesa Elephant Camp (130. km), A15 Wat Doi Pui (149. km). Drinks only: A1 Khiri Kiang Dao Garden Home (9. km).

Is there a drop bag at HOKA Chiang Mai Thailand by UTMB 2026?

Yes. On the 173K course the drop bag point is A5 Sop Kai Village (km 51).

What are the cut-off times for the 173K at HOKA Chiang Mai Thailand by UTMB 2026?

On the 173K course at HOKA Chiang Mai Thailand by UTMB 2026 the finish cut-off is Sunday 10:00. Intermediate cut-offs: A3 Pagia Highland Research Station (km 33) Friday 19:00, A5 Sop Kai Village (km 51) Friday 23:00, A7 Mae Taeng Watershed Research Station (km 72) Saturday 04:00, A10 Mae Ka Piang Village (km 100) Saturday 12:30, A11 Wat Pang Hai (km 110) Saturday 17:00, A13 Maesa Elephant Camp (km 130) Saturday 23:59, A16 Mon Tha Than Waterfall (km 162) Sunday 08:00.

What are the cut-off times for the 100K at HOKA Chiang Mai Thailand by UTMB 2026?

On the 100K course at HOKA Chiang Mai Thailand by UTMB 2026 the finish cut-off is Saturday 12:00. Intermediate cut-offs: A10 Mae Ka Piang Village (km 28) Friday 16:00, A11 Wat Pang Hai (km 38) Friday 19:30, A13 Maesa Elephant Camp (km 58) Saturday 02:00, A16 Montha Than Waterfall (km 90) Saturday 10:00.

What are the cut-off times for the 63K at HOKA Chiang Mai Thailand by UTMB 2026?

Cut-offs on the 63K course at HOKA Chiang Mai Thailand by UTMB 2026: B3 Mae Uam Water Resource Management Office (km 29) Sunday 02:00, B4 Mae Chaem Guard Unit (km 40) Sunday 05:00, B5 Relic of the Buddha (km 48) Sunday 08:30, F Doi Inthanon National Park HQ (km 57) Sunday 10:30.

What are the cut-off times for the 57K at HOKA Chiang Mai Thailand by UTMB 2026?

On the 57K course at HOKA Chiang Mai Thailand by UTMB 2026 the finish cut-off is Saturday 23:30. Intermediate cut-offs: B3 Mae Uam Water Resource Management Office (km 29) Saturday 15:00, B4 Mae Chaem Guard Unit (km 40) Saturday 18:00, B5 Relic of the Buddha (km 48) Saturday 21:30.

What time does HOKA Chiang Mai Thailand by UTMB 2026 start?

Known start times: 173K 10:00, 100K 08:00, 63K 18:00, 57K 07:00, 26K 16:00, 20K 07:00, 5K 07:30, 3K 18:30, local time. Confirm against the organiser's schedule in race week.

What is the time limit at HOKA Chiang Mai Thailand by UTMB 2026?

The finish time limit is 173K Sunday 10:00, 100K Saturday 12:00, 57K Saturday 23:30, 26K Saturday 23:30, 20K Sunday 15:00. Intermediate stations carry their own cut-offs; the full list is in the checkpoint table on this page.

Is there a GPX file for HOKA Chiang Mai Thailand by UTMB 2026?

Yes. The GPX files for the 173K, 100K, 63K, 57K, 26K, 20K, 5K, 3K courses can be downloaded from the course section on this page, next to the route and grade profile.

Which HOKA Chiang Mai Thailand by UTMB course should you choose?

The shortest option is 3K (3 km, 100 m D+) and the longest is 173K (173 km, 9800 m D+). With little trail experience the 3K is the safer start; the 173K demands an all-day effort and cut-off management.

What are the gradients like at HOKA Chiang Mai Thailand by UTMB 2026?

The 173K course averages 57 m of climbing per km, with 9581 m of total ascent and 9694 m of descent. The steepest kilometre averages 27%.

How runnable is the HOKA Chiang Mai Thailand by UTMB 2026 course?

This is not a running course in the classic sense: at 57 m of gain per km it demands long hiking blocks, and walking the steep climbs is part of the strategy.

Where is the steepest part of HOKA Chiang Mai Thailand by UTMB 2026?

The steepest kilometre of the 173K course averages 27% and sits inside the climb between km 108 and km 115.

How many climbs does HOKA Chiang Mai Thailand by UTMB 2026 have?

The 173K course has 15 distinct climbs. The biggest: km 19-34 (977 m at 7%); km 9-16 (819 m at 12%); km 49-61 (775 m at 7%).

Is there a long climb at HOKA Chiang Mai Thailand by UTMB 2026?

Yes. The longest climb runs 14.4 km from km 19, gaining 977 m at 7% average, topping out at 1717 m.

What are the descents like at HOKA Chiang Mai Thailand by UTMB 2026?

There is 9694 m of descent in total. The longest drop runs 21 km between km 146 and km 167, losing 1280 m. About 18% of the course is steep downhill, so the legs need descent training too.

Are there flat sections at HOKA Chiang Mai Thailand by UTMB 2026?

Partly: about 21% of the course is near flat, the rest climbs or descends.

Is the hard part of HOKA Chiang Mai Thailand by UTMB 2026 early or late?

The climbing is evenly split: 52% of it sits in the first half.

What is the elevation range at HOKA Chiang Mai Thailand by UTMB 2026?

The lowest point of the 173K course sits at 319 m and the highest at 1730 m, a range of 1411 m. Conditions change noticeably between the two, so plan clothing in layers.

Where does HOKA Chiang Mai Thailand by UTMB 2026 reach its high point?

The course tops out at 1730 m, reached around km 34.

Are poles mandatory at HOKA Chiang Mai Thailand by UTMB 2026?

The organiser has not announced a pole requirement. Based on the profile poles help noticeably.

Do you need to carry water at HOKA Chiang Mai Thailand by UTMB 2026?

Yes: the longest stretch without aid on the 173K course is 14.2 km, so carrying backup water is essential.