Ultra-Trail Mount Yun by UTMB®Mount Yun, China🇨🇳

About Ultra-Trail Mount Yun by UTMB® 2026

Ultra-Trail Mount Yun by UTMB® 2026 is a trail race held from Fri, Oct 16, 2026 to Sun, Oct 18, 2026 in Mount Yun, China; the start is at 15:00.

Registration dates have not been announced yet. 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 28 weeks, about 6.5 months, to prepare for the 166K course of Ultra-Trail Mount Yun by UTMB® 2026; that start day was Fri, Apr 3, 2026, so the window has passed with 0 weeks left to the race.

Step into Mount Yun that Laozi, the founder of Taoism, once visited. Experience an unforgettable trail running adventure in an enchanting emerald paradise with breathtaking natural scenery: the majestic Mount Yun, lush pine trees, and ice cave groups.

Courses

Course	Distance	Elevation Gain	Km-effort	Course file
166K	166 km	7400 m D+	240	GPX
97K	97 km	4300 m D+	140	GPX
48K	48 km	2400 m D+	72	GPX
22K	22 km	1400 m D+	36	GPX

There are 4 courses: 166K (7400 m D+); 97K (4300 m D+); 48K (2400 m D+); 22K (1400 m D+).

Course map and elevation profile

166K course

97K course

48K course

22K course

Race day weather

Race day forecast: 14°C to 22°C, 81% chance of rain (9.4 mm), wind up to 18 km/h (a light breeze).
Rain is likely: the ground turns slick, so ease off on the descents.
Sunrise 06:42, sunset 17:59.

The forecast comes from Open-Meteo and sharpens as the day approaches. Local conditions on race morning can differ.

Race briefing

166K course164 km · 7175 m gain · 35% uphill · 15 aid stations

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

The published GPX measures 164 km with 7175 m of climbing, 44 m per km. The course sits between 651 m and 1656 m of altitude. 58% of the gain sits in the first half.

0-10 km · Start → Qingye: 733 m up / 20 m down; the stretch climbs.
10-19 km · Qingye → Linchang: 549 m up / 331 m down; the stretch climbs.
19-28 km · Linchang → Geta: 499 m up / 521 m down; the stretch keeps rolling.
28-41 km · Geta → Xujiaping Village: 541 m up / 591 m down; the stretch keeps rolling.
41-53 km · Xujiaping Village → Xigeduo: 522 m up / 488 m down; the stretch keeps rolling.
53-62 km · Xigeduo → Yangjiayuan: 385 m up / 661 m down; the stretch descends.
62-72 km · Yangjiayuan → Xiangning Sport Center: 360 m up / 546 m down; the stretch descends.
72-87 km · Xiangning Sport Center → Qiaoshang New Village: 807 m up / 418 m down; the stretch climbs.
87-97 km · Qiaoshang New Village → Xizhuang: 331 m up / 399 m down; the stretch keeps rolling.
97-110 km · Xizhuang → Duobao Lingyan Temple: 201 m up / 657 m down; the stretch descends.
110-120 km · Duobao Lingyan Temple → Xiachuan Village: 554 m up / 485 m down; the stretch keeps rolling.
120-132 km · Xiachuan Village → Anfen: 668 m up / 427 m down; the stretch climbs.
132-141 km · Anfen → Jiazhuang: 363 m up / 221 m down; the stretch climbs.
141-152 km · Jiazhuang → Xiachuan Village Committee: 263 m up / 616 m down; the stretch descends.
152-162 km · Xiachuan Village Committee → Luyuangou Village: 389 m up / 733 m down; the stretch descends.
162-164 km · Luyuangou Village → Finish: 9 m up / 53 m down; close to flat.

The race climbs from the gun: 196 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 0 to km 13: 1002 m over 13 km at 8% average, its steepest roughly 250 m section averaging 42% on the GPX trace. Heaviest kilometres: km 8 254 m, km 11 192 m, km 7 163 m, km 12 128 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 155 and loses 727 m by km 164 at 8% average, its steepest roughly 250 m section averaging 48% 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 19 averages 37% 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 280 m first and then climb 53 m. Empty your legs on the descent and that final rise takes the payment.

You reach the climb after Xiangning Sport Center with about 546 m of descent already in your quads; treat its first half as recovery effort.

The leg from Xiangning Sport Center to Qiaoshang New Village is long and unsupported: 15 km and 807 m of climbing with no aid in between, so leave Xiangning Sport Center with full capacity.

A steep pitch starts within about 0.7 km of Duobao Lingyan Temple; keep the stop short and do not enter it on cooled-down legs.

You reach the climb after Xiachuan Village with about 485 m of descent already in your quads; treat its first half as recovery effort.

The organiser lists 166 km; the published GPX measures 164 km. The technical course notes use the published GPX measurement.
This course reaches 1656 m. A separate forecast for the high-point coordinate gives 9°C to 15°C, wind up to 24 km/h (a moderate wind). It is a daily forecast for that coordinate, so arrival time can still change what you encounter.
Sunset is 17:59 and the finish cut-off is 15:00. A runner using the full time allowance spends the final 12 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.
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 44 m of gain per km and the longest climb averaging over 5% runs 13 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.

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

Qingyekm 10

Collect food and fluids and leave within 60-90 seconds.
A heavy leg is next: 8.4 km with 546 m of climbing.
A 42% pitch starts about 0.3 km after the station; do not enter it cooled down.

Linchangkm 19

Take hot food you digest easily and top up fluids.
A heavy leg is next: 9.9 km with 499 m of climbing.
Cut-off: 5h after the start.

Getakm 28

Take hot food you digest easily and top up fluids.
A heavy leg is next: 13 km with 550 m of climbing.

Xujiaping Villagekm 41

Take hot food you digest easily and top up fluids.
A heavy leg is next: 12 km with 689 m of climbing.
Cut-off: 11h after the start.

Xiangning Sport Centerkm 72

Collect food and fluids and leave within 60-90 seconds.
Your drop bag waits here; work off your prepared list.
Crew access is allowed here.
The heaviest leg is next: 15 km with 891 m of climbing.
The longest unsupported stretch starts here: 15 km. Leave with full capacity.
Cut-off: 19h 30m after the start.

Duobao Lingyan Templekm 110

Drinks only; arrive carrying your own food.
Crew access is allowed here.
A heavy leg is next: 10 km with 508 m of climbing.
Cut-off: 30h 30m after the start.

Anfenkm 132

Collect food and fluids and leave within 60-90 seconds.
Your drop bag waits here; work off your prepared list.
Crew access is allowed here.
A heavy leg is next: 9.2 km with 496 m of climbing.
Cut-off: 38h after the start.

Xiachuan Village Committeekm 152

Take hot food you digest easily and top up fluids.
A heavy leg is next: 9.8 km with 457 m of climbing.
Cut-off: 44h after the start.

The longest stretch between official aid stations runs from Xiangning Sport Center (km 72) to Qiaoshang New Village (km 87): 15 km, with 891 m of climbing in between. Top up at Xiangning Sport Center and size what you carry to the expected duration and your own drinking rate.
Drinks only, no food, at Qiaoshang New Village (km 87) and Duobao Lingyan Temple (km 110). 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 Linchang (km 19) and Geta (km 28) and 6 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 Qingye (km 10) and Xigeduo (km 53) and 3 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 Xiangning Sport Center (km 72) and Anfen (km 132). 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 Xiangning Sport Center (km 72), Duobao Lingyan Temple (km 110), and Anfen (km 132). 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 Zhonghe Square (km 0) to Qingye (km 10): 10 km with 733 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at Zhonghe Square (km 0), Qingye (km 10), Linchang (km 19), Geta (km 28), Xujiaping Village (km 41), Xigeduo (km 53), Yangjiayuan (km 62), Xiangning Sport Center (km 72), Qiaoshang New Village (km 87), Xizhuang (km 97), Duobao Lingyan Temple (km 110), Xiachuan Village (km 120), Anfen (km 132), Jiazhuang (km 141), Xiachuan Village Committee (km 152), Luyuangou Village (km 162), and Zhonghe Square (km 167). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 0.3 km after Qingye (km 10), a roughly 250 m section averaging 42% 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 Start to Linchang (km 19): the official time budget is 5h for 19 km and 1282 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 → Linchangpasses Qingye, which has no time limit	19 km	1282 m	5h	start + 5h
Linchang → Xujiaping Villagepasses Geta, which has no time limit	23 km	1040 m	6h	start + 11h
Xujiaping Village → Xiangning Sport Centerpasses Xigeduo, Yangjiayuan, which has no time limit	31 km	1267 m	8h 30m	start + 19h 30m
Xiangning Sport Center → Duobao Lingyan Templepasses Qiaoshang New Village, Xizhuang, which has no time limit	38 km	1339 m	11h	start + 30h 30m
Duobao Lingyan Temple → Anfenpasses Xiachuan Village, which has no time limit	22 km	1222 m	7h 30m	start + 38h
Anfen → Xiachuan Village Committeepasses Jiazhuang, which has no time limit	21 km	627 m	6h	start + 44h
Xiachuan Village Committee → Zhonghe Squarepasses Luyuangou Village, which has no time limit	14 km	398 m	4h	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
Zhonghe Square	0	—	—	Yes	No	—
Qingye	10	10	Food	Yes	No	—
Linchang	19	8.4	Hot food	Yes	No	Friday 20:00
Geta	28	9.8	Hot food	Yes	No	—
Xujiaping Village	41	13	Hot food	Yes	No	Saturday 02:00
Xigeduo	53	12	Food	Yes	No	—
Yangjiayuan	62	8.7	Hot food	Yes	No	—
Xiangning Sport CenterDrop bag	72	10	Food	Yes	Yes	Saturday 10:30
Qiaoshang New Village	87	15	Drinks	Yes	No	—
Xizhuang	97	9.4	Hot food	Yes	No	—
Duobao Lingyan Temple	110	13	Drinks	Yes	Yes	Saturday 21:30
Xiachuan Village	120	10	Food	Yes	No	—
AnfenDrop bag	132	12	Food	Yes	Yes	Sunday 05:00
Jiazhuang	141	9.2	Hot food	Yes	No	—
Xiachuan Village Committee	152	12	Hot food	Yes	No	Sunday 11:00
Luyuangou Village	162	9.8	Hot food	Yes	No	—
Zhonghe Square	167	4.4	Hot food	Yes	No	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

97K course96 km · 4356 m gain · 36% uphill · 9 aid stations

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

The published GPX measures 96 km with 4356 m of climbing, 46 m per km. The course sits between 651 m and 1656 m of altitude. 60% of the gain sits in the first half.

0-10 km · Start → Qingye: 733 m up / 20 m down; the stretch climbs.
10-19 km · Qingye → Linchang: 549 m up / 331 m down; the stretch climbs.
19-32 km · Linchang → Tuyao: 474 m up / 977 m down; the stretch descends.
32-40 km · Tuyao → Duobaolingyan Temple: 353 m up / 434 m down; the stretch keeps rolling.
40-50 km · Duobaolingyan Temple → Xiachuan Acient Village: 517 m up / 536 m down; the stretch keeps rolling.
50-62 km · Xiachuan Acient Village → Anfen: 495 m up / 425 m down; the stretch keeps rolling.
62-71 km · Anfen → Jiazhuang Village: 507 m up / 218 m down; the stretch climbs.
71-83 km · Jiazhuang Village → Xiachuan Village Committee: 253 m up / 622 m down; the stretch descends.
83-92 km · Xiachuan Village Committee → Luyuangou Village: 466 m up / 704 m down; the stretch descends.
92-96 km · Luyuangou Village → Finish: 9 m up / 82 m down; close to flat.

The race climbs from the gun: 196 m over the first 5 km. Do not chase the crowd, the two minutes you win here get taken back with interest.

The late climb from km 83 to km 86: 421 m over 3.6 km at 12% average, its steepest roughly 250 m section averaging 28%. Kilometre by kilometre: km 84 70 m, km 85 138 m, km 86 188 m. By the time you start it, about 89% of the day's climbing is behind you. 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 longest descent starts at km 86 and loses 727 m by km 96 at 8% average, its steepest roughly 250 m section averaging 48% 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 79 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 280 m first and then climb 53 m. Empty your legs on the descent and that final rise takes the payment.

The leg from Linchang to Tuyao is long and unsupported: 14 km and 474 m of climbing with no aid in between, so leave Linchang with full capacity.

A steep pitch starts within about 1.9 km of Duobaolingyan Temple; keep the stop short and do not enter it on cooled-down legs.

A steep pitch starts within about 0.3 km of Xiachuan Acient Village; keep the stop short and do not enter it on cooled-down legs.

You reach the climb after Anfen with about 425 m of descent already in your quads; treat its first half as recovery effort.

The organiser lists 97 km; the published GPX measures 95.6 km. The technical course notes use the published GPX measurement.
This course reaches 1656 m. A separate forecast for the high-point coordinate gives 9°C to 15°C, wind up to 24 km/h (a moderate wind). It is a daily forecast for that coordinate, so arrival time can still change what you encounter.
Sunset is 17:59 and the finish cut-off is 01:00. A runner using the full time allowance spends the final 9 hours 42 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 46 m of gain per km and the longest climb averaging over 5% runs 13 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.

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

Qingyekm 10

Collect food and fluids and leave within 60-90 seconds.
A heavy leg is next: 8.4 km with 546 m of climbing.
A 42% pitch starts about 0.3 km after the station; do not enter it cooled down.

Linchangkm 19

Take hot food you digest easily and top up fluids.
A heavy leg is next: 14 km with 470 m of climbing.
The longest unsupported stretch starts here: 14 km. Leave with full capacity.
Cut-off: 5h 30m after the start.

Tuyaokm 32

Take hot food you digest easily and top up fluids.
A heavy leg is next: 7.9 km with 364 m of climbing.

Duobaolingyan Templekm 40

Take hot food you digest easily and top up fluids.
A heavy leg is next: 10 km with 508 m of climbing.
Cut-off: 11h 30m after the start.

Anfenkm 62

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: 9.2 km with 496 m of climbing.
Cut-off: 18h 30m after the start.

Xiachuan Village Committeekm 83

Take hot food you digest easily and top up fluids.
A heavy leg is next: 9.8 km with 457 m of climbing.
Cut-off: 24h 30m after the start.

The longest stretch between official aid stations runs from Linchang (km 19) to Tuyao (km 32): 14 km, with 470 m of climbing in between. Top up at Linchang and size what you carry to the expected duration and your own drinking rate.
Hot food is served at Linchang (km 19) and Tuyao (km 32) and 6 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 Qingye (km 10). 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 Anfen (km 62). 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 Anfen (km 62). 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 Zhonghe Square (km 0) to Qingye (km 10): 10 km with 733 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at Zhonghe Square (km 0), Qingye (km 10), Linchang (km 19), Tuyao (km 32), Duobaolingyan Temple (km 40), Xiachuan Acient Village (km 50), Anfen (km 62), Jiazhuang Village (km 71), Xiachuan Village Committee (km 83), Luyuangou Village (km 92), and Zhonghe Square (km 97). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 0.3 km after Qingye (km 10), a roughly 250 m section averaging 42% 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 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 Start to Linchang (km 19): the official time budget is 5h 30m for 19 km and 1282 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 → Linchangpasses Qingye, which has no time limit	19 km	1282 m	5h 30m	start + 5h 30m
Linchang → Duobaolingyan Templepasses Tuyao, which has no time limit	22 km	827 m	6h	start + 11h 30m
Duobaolingyan Temple → Anfenpasses Xiachuan Acient Village, which has no time limit	22 km	1012 m	7h	start + 18h 30m
Anfen → Xiachuan Village Committeepasses Jiazhuang Village, which has no time limit	21 km	760 m	6h	start + 24h 30m
Xiachuan Village Committee → Zhonghe Squarepasses Luyuangou Village, which has no time limit	14 km	475 m	3h 30m	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
Zhonghe Square	0	—	—	Yes	No	—
Qingye	10	10	Food	Yes	No	—
Linchang	19	8.4	Hot food	Yes	No	Saturday 02:30
Tuyao	32	14	Hot food	Yes	No	—
Duobaolingyan Temple	40	7.8	Hot food	Yes	No	Saturday 08:30
Xiachuan Acient Village	50	10	Hot food	Yes	No	—
AnfenDrop bag	62	12	Hot food	Yes	Yes	Saturday 15:30
Jiazhuang Village	71	9.2	Hot food	Yes	No	—
Xiachuan Village Committee	83	12	Hot food	Yes	No	Saturday 21:30
Luyuangou Village	92	9.8	Hot food	Yes	No	—
Zhonghe Square	97	4.4	Hot food	Yes	No	Sunday 01:00

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

48K course48 km · 2410 m gain · 37% uphill · 5 aid stations

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

The published GPX measures 48 km with 2410 m of climbing, 50 m per km. The course sits between 651 m and 1603 m of altitude. 58% of the gain sits in the first half.

0-6.5 km · Start → Houzhuang: 290 m up / 40 m down; the stretch climbs.
6.5-14 km · Houzhuang → Linchang: 716 m up / 47 m down; the stretch climbs.
14-25 km · Linchang → Duobaolingyan Temple: 400 m up / 972 m down; the stretch descends.
25-35 km · Duobaolingyan Temple → Xiachuan Ancient Village: 549 m up / 559 m down; the stretch keeps rolling.
35-44 km · Xiachuan Ancient Village → Luyuangou Village: 446 m up / 679 m down; the stretch descends.
44-48 km · Luyuangou Village → Finish: 9 m up / 107 m down; close to flat.

The race climbs from the gun: 124 m over the first 3.8 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 0 to km 13: 950 m over 13 km at 8% average, its steepest roughly 250 m section averaging 28%. Heaviest kilometres: km 12 202 m, km 11 158 m, km 10 90 m, km 13 79 m. This is hiking terrain, not running terrain. Walk it with intent and keep your heart rate off the ceiling.

The climb between km 19 and km 23: 375 m over 3.1 km at 12% average, its steepest roughly 250 m section averaging 24%. Kilometre by kilometre: km 20 18 m, km 21 101 m, km 22 182 m, km 23 96 m. By the time you start it, about 42% 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 steepest wall stands between km 27 and km 31: 441 m over 3.6 km at 12% average, its steepest roughly 250 m section averaging 34% on the GPX trace. Kilometre by kilometre: km 28 87 m, km 29 214 m, km 30 136 m, km 31 23 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 late climb from km 35 to km 38: 421 m over 3.6 km at 12% average, its steepest roughly 250 m section averaging 28%. Kilometre by kilometre: km 36 64 m, km 37 107 m, km 38 182 m. By the time you start it, about 80% 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 38 and loses 724 m by km 48 at 8% average, its steepest roughly 250 m section averaging 44% 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 23 averages 33% 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 5.8 km drop 204 m. If anything is left in your legs, spend it here.

The leg from Linchang to Duobaolingyan Temple is long and unsupported: 11 km and 400 m of climbing with no aid in between, so leave Linchang with full capacity.

A steep pitch starts within about 1.9 km of Duobaolingyan Temple; keep the stop short and do not enter it on cooled-down legs.

This course reaches 1603 m. A separate forecast for the high-point coordinate gives 9°C to 15°C, wind up to 24 km/h (a moderate wind). It is a daily forecast for that coordinate, so arrival time can still change what you encounter.
Sunset is 17:59 and the finish cut-off is 22:00. A runner using the full time allowance spends the final 4 hours 1 minute 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 50 m of gain per km and the longest climb averaging over 5% runs 13 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.

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

Linchangkm 14

Take hot food you digest easily and top up fluids.
A heavy leg is next: 11 km with 403 m of climbing.
The longest unsupported stretch starts here: 11 km. Leave with full capacity.
Cut-off: 4h after the start.

Duobaolingyan Templekm 25

Take hot food you digest easily and top up fluids.
A heavy leg is next: 10 km with 508 m of climbing.

Xiachuan Ancient Villagekm 35

Take hot food you digest easily and top up fluids.
A heavy leg is next: 9.1 km with 443 m of climbing.
A 19% pitch starts about 2 km after the station; do not enter it cooled down.
Cut-off: 10h after the start.

The longest stretch between official aid stations runs from Linchang (km 14) to Duobaolingyan Temple (km 25): 11 km, with 403 m of climbing in between. Top up at Linchang and size what you carry to the expected duration and your own drinking rate.
Drinks only, no food, at Houzhuang (km 7). 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 Linchang (km 14) and Duobaolingyan Temple (km 25) 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.
The heaviest leg runs from Houzhuang (km 7) to Linchang (km 14): 7 km with 715 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at Zhonghe Square (km 0), Houzhuang (km 7), Linchang (km 14), Duobaolingyan Temple (km 25), Xiachuan Ancient Village (km 35), Luyuangou Village (km 44), and Zhonghe Square (km 49). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 2 km after Xiachuan Ancient Village (km 35), a roughly 250 m section averaging 19% 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 14h, 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 Linchang (km 14): the official time budget is 4h for 14 km and 1006 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
Zhonghe Square	0	—	—	Yes	No	—
Houzhuang	6.5	6.5	Drinks	Yes	No	—
Linchang	14	7.5	Hot food	Yes	No	Saturday 12:00
Duobaolingyan Temple	25	11	Hot food	Yes	No	—
Xiachuan Ancient Village	35	10	Hot food	Yes	No	Saturday 18:00
Luyuangou Village	44	9.1	Hot food	Yes	No	—
Zhonghe Square	49	4.4	Hot food	Yes	No	Saturday 22:00

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

22K course22 km · 1410 m gain · 38% uphill · 2 aid stations

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

The published GPX measures 22 km with 1410 m of climbing, 65 m per km. The course sits between 636 m and 1359 m of altitude. 54% of the gain sits in the first half.

0-10 km · Start → Babao Palace: 715 m up / 612 m down; the stretch keeps rolling.
10-16 km · Babao Palace → Qingye: 638 m up / 45 m down; the stretch climbs.
16-22 km · Qingye → Finish: 58 m up / 764 m down; the stretch descends.

The race climbs from the gun: 96 m over the first 1.7 km. Do not chase the crowd, the two minutes you win here get taken back with interest.

The climb between km 0 and km 6: net 417 m over 6.2 km at 7% average, its steepest roughly 250 m section averaging 28%, 580 m of climbing in total with 163 m given back. Kilometre by kilometre: km 1 98 m, km 2 105 m, km 3 57 m, km 4 33 m, km 5 143 m, km 6 102 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 8 to km 16: net 611 m over 7.6 km at 8% average, its steepest roughly 250 m section averaging 40% on the GPX trace, 696 m of climbing in total with 85 m given back. Heaviest kilometres: km 12 298 m, km 13 165 m, km 14 74 m, km 11 69 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 16 and loses 708 m by km 22 at 12% average, its steepest roughly 250 m section averaging 46% 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 6 averages 40% 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 2.6 km drop 241 m. If anything is left in your legs, spend it here.

You reach the climb after Babao Palace with about 612 m of descent already in your quads; treat its first half as recovery effort.

This course reaches 1359 m. A separate forecast for the high-point coordinate gives 10°C to 17°C, wind up to 21 km/h (a moderate wind). It is a daily forecast for that coordinate, so arrival time can still change what you encounter.
Even at cut-off pace you finish 1 hour 59 minutes before sunset. This one is run entirely in daylight.
Poles are strongly recommended for this profile. The course averages 65 m of gain per km and the longest climb averaging over 5% runs 7.6 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

Babao Palacekm 10

Take hot food you digest easily and top up fluids.
A heavy leg is next: 5.7 km with 641 m of climbing.
A 40% pitch starts about 1.5 km after the station; do not enter it cooled down.
Cut-off: 3h after the start.

The longest stretch between official aid stations runs from Zhonghe Square (km 0) to Babao Palace (km 10): 10 km, with 704 m of climbing in between. Top up at Zhonghe Square and size what you carry to the expected duration and your own drinking rate.
Hot food is served at Babao Palace (km 10). 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 Qingye (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.
The last aid station is Qingye (km 16), leaving 6 km to the finish. After that you are on what you carry.
Another heavy leg runs from Babao Palace (km 10) to Qingye (km 16): 6 km with 641 m of climbing. Treat it as the slowest part of your day and get your food out before it.
Medical support is available at Zhonghe Square (km 0), Babao Palace (km 10), Qingye (km 16), and Zhonghe Square (km 22). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
About 2 km after Babao Palace (km 10), a roughly 250 m section averaging 40% 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 7h, 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 Babao Palace (km 10): the official time budget is 3h for 10 km and 715 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
Zhonghe Square	0	—	—	Yes	No	—
Babao Palace	10	10	Hot food	Yes	No	Sunday 12:00
Qingye	16	5.7	Food	Yes	No	—
Zhonghe Square	22	6.4	Hot food	Yes	No	Sunday 16:00

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

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

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Frequently asked questions

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What is Ultra-Trail Mount Yun by UTMB®?

When is Ultra-Trail Mount Yun by UTMB® 2026?

Ultra-Trail Mount Yun by UTMB® takes place on Fri, Oct 16, 2026 - Sun, Oct 18, 2026. Start time: 15:00.

Where does Ultra-Trail Mount Yun by UTMB® take place?

Ultra-Trail Mount Yun by UTMB® takes place in Mount Yun, China.

What are the courses and distances of Ultra-Trail Mount Yun by UTMB® 2026?

Ultra-Trail Mount Yun by UTMB® offers 4 courses: 166K (166 km, 7400 m D+); 97K (97 km, 4300 m D+); 48K (48 km, 2400 m D+); 22K (22 km, 1400 m D+).

How hard is Ultra-Trail Mount Yun by UTMB® 2026?

Difficulty is measured in km-effort: distance plus ascent divided by 100. The 166K course covers 166 km with 7400 m of climbing, which is 240 km-effort and falls in ITRA category XXL. All courses: 166K 240 km-effort (XXL), 97K 140 km-effort (L), 48K 72 km-effort (S), 22K 36 km-effort (XS).

What is the official website of Ultra-Trail Mount Yun by UTMB®?

Official website: https://mount-yun.utmb.world/

Is the Ultra-Trail Mount Yun by UTMB® 2026 course a loop or an out and back?

The 166K course is a single loop with a shared start and finish; measured from the GPX file it runs 164.3 km. The 97K course is a single loop with a shared start and finish; measured from the GPX file it runs 95.6 km. The 48K course is a single loop with a shared start and finish; measured from the GPX file it runs 47.9 km.

Where is the hardest climb at Ultra-Trail Mount Yun by UTMB® 2026?

The biggest climb on the 166K course runs from km 0 to km 13: 12.7 km for 1002 m at 8% average; its steepest roughly 250 m section averages 42%. It tops out at 1655 m.

How high does Ultra-Trail Mount Yun by UTMB® 2026 go?

The 166K course runs between 651 m and 1656 m with 7175 m of total climbing.

Do you need poles at Ultra-Trail Mount Yun by UTMB® 2026?

The 166K course averages 44 m of gain per km with a longest climb of 12.7 km, so poles help noticeably.

Do you need a headtorch at Ultra-Trail Mount Yun by UTMB® 2026?

166K: Sunset is 17:59 and the finish cut-off is 15:00. A runner using the full time allowance spends the final 12 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. 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 Ultra-Trail Mount Yun by UTMB® 2026?

The race day forecast is 14°C to 22°C, 81% chance of rain, wind up to 18 km/h. Sunrise 06:42, sunset 17:59.

Where are the aid stations at Ultra-Trail Mount Yun by UTMB® 2026?

The 166K course has 15 stations; the first at km 10 and the last at km 162. The longest gap between them is 15 km, between Xiangning Sport Center and Qiaoshang New Village.

What is served at the Ultra-Trail Mount Yun by UTMB® 2026 aid stations?

For the 166K course: Hot food: Linchang (19. km), Geta (28. km), Xujiaping Village (41. km), Yangjiayuan (62. km), Xizhuang (97. km), Jiazhuang (141. km), Xiachuan Village Committee (152. km), Luyuangou Village (162. km). Drinks only: Qiaoshang New Village (87. km), Duobao Lingyan Temple (110. km).

Is there a drop bag at Ultra-Trail Mount Yun by UTMB® 2026?

Yes. On the 166K course the drop bag point is Xiangning Sport Center (km 72).

What are the cut-off times for the 166K at Ultra-Trail Mount Yun by UTMB® 2026?

On the 166K course at Ultra-Trail Mount Yun by UTMB® 2026 the finish cut-off is Sunday 15:00. Intermediate cut-offs: Linchang (km 19) Friday 20:00, Xujiaping Village (km 41) Saturday 02:00, Xiangning Sport Center (km 72) Saturday 10:30, Duobao Lingyan Temple (km 110) Saturday 21:30, Anfen (km 132) Sunday 05:00, Xiachuan Village Committee (km 152) Sunday 11:00.

What are the cut-off times for the 97K at Ultra-Trail Mount Yun by UTMB® 2026?

On the 97K course at Ultra-Trail Mount Yun by UTMB® 2026 the finish cut-off is Sunday 01:00. Intermediate cut-offs: Linchang (km 19) Saturday 02:30, Duobaolingyan Temple (km 40) Saturday 08:30, Anfen (km 62) Saturday 15:30, Xiachuan Village Committee (km 83) Saturday 21:30.

What are the cut-off times for the 48K at Ultra-Trail Mount Yun by UTMB® 2026?

On the 48K course at Ultra-Trail Mount Yun by UTMB® 2026 the finish cut-off is Saturday 22:00. Intermediate cut-offs: Linchang (km 14) Saturday 12:00, Xiachuan Ancient Village (km 35) Saturday 18:00.

What are the cut-off times for the 22K at Ultra-Trail Mount Yun by UTMB® 2026?

On the 22K course at Ultra-Trail Mount Yun by UTMB® 2026 the finish cut-off is Sunday 16:00. Intermediate cut-offs: Babao Palace (km 10) Sunday 12:00.

What time does Ultra-Trail Mount Yun by UTMB® 2026 start?

Known start times: 166K 15:00, 97K 21:00, 48K 08:00, 22K 09:00, local time. Confirm against the organiser's schedule in race week.

What is the time limit at Ultra-Trail Mount Yun by UTMB® 2026?

The finish time limit is 166K Sunday 15:00, 97K Sunday 01:00, 48K Saturday 22:00, 22K Sunday 16:00. Intermediate stations carry their own cut-offs; the full list is in the checkpoint table on this page.

Is there a GPX file for Ultra-Trail Mount Yun by UTMB® 2026?

Yes. The GPX files for the 166K, 97K, 48K, 22K courses can be downloaded from the course section on this page, next to the route and grade profile.

Which Ultra-Trail Mount Yun by UTMB® course should you choose?

The shortest option is 22K (22 km, 1400 m D+) and the longest is 166K (166 km, 7400 m D+). With little trail experience the 22K is the safer start; the 166K demands an all-day effort and cut-off management.

What are the gradients like at Ultra-Trail Mount Yun by UTMB® 2026?

The 166K course averages 44 m of climbing per km, with 7175 m of total ascent and 7168 m of descent. The steepest kilometre averages 27%.

How runnable is the Ultra-Trail Mount Yun by UTMB® 2026 course?

Expect a mix of running and power hiking: 44 m of gain per km; hiking the long climbs is normal, and the longest climb runs 12.7 km.

Where is the steepest part of Ultra-Trail Mount Yun by UTMB® 2026?

The steepest kilometre of the 166K course averages 27% and sits inside the climb between km 0 and km 13.

How many climbs does Ultra-Trail Mount Yun by UTMB® 2026 have?

The 166K course has 17 distinct climbs. The biggest: km 0-13 (1002 m at 8%); km 70-81 (544 m at 5%); km 127-136 (473 m at 5%).

Is there a long climb at Ultra-Trail Mount Yun by UTMB® 2026?

Yes. The longest climb runs 12.7 km from km 0, gaining 1002 m at 8% average, topping out at 1655 m.

What are the descents like at Ultra-Trail Mount Yun by UTMB® 2026?

There is 7168 m of descent in total. The longest drop runs 9.5 km between km 155 and km 164, losing 727 m.

Are there flat sections at Ultra-Trail Mount Yun by UTMB® 2026?

Partly: about 31% of the course is near flat, the rest climbs or descends.

Is the hard part of Ultra-Trail Mount Yun by UTMB® 2026 early or late?

The climbing is evenly split: 58% of it sits in the first half.

What is the elevation range at Ultra-Trail Mount Yun by UTMB® 2026?

The lowest point of the 166K course sits at 651 m and the highest at 1656 m, a range of 1005 m. Conditions change noticeably between the two, so plan clothing in layers.

Where does Ultra-Trail Mount Yun by UTMB® 2026 reach its high point?

The course tops out at 1656 m, reached around km 13.

Are poles mandatory at Ultra-Trail Mount Yun 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 Ultra-Trail Mount Yun by UTMB® 2026?

Yes: the longest stretch without aid on the 166K course is 15.1 km, so carrying backup water is essential.