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Ultra-Trail Kosciuszko by UTMBThredbo, Australia🇦🇺

Ultra-Trail Kosciuszko by UTMB

About Ultra-Trail Kosciuszko by UTMB 2026

Ultra-Trail Kosciuszko by UTMB 2026 is a trail race held from Thu, Nov 26, 2026 to Sat, Nov 28, 2026 in Thredbo, Australia; the start is at 07:30.

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 27 weeks, about 6 months, to prepare for the 160.5K course of Ultra-Trail Kosciuszko by UTMB 2026; that start day was Thu, May 21, 2026, so the window has passed with 6 weeks left to the race.

Ultra-Trail Kosciuszko is Australia's Alpine Ultra-Trail running event, held in the Snowy Mountains National Park in New South Wales. Trail running distances include 100 Miler, 100km, 50km and 30km options. The event is part of the UTMB World Series.

Courses

CourseDistanceElevation GainCourse file
160.5K160.5 km4731 m D+GPX
105.6K105.6 km2973 m D+GPX
50.3K50.3 km1355 m D+GPX
33K33 km596 m D+GPX

There are 4 courses: 160.5K (4731 m D+); 105.6K (2973 m D+); 50.3K (1355 m D+); 33K (596 m D+).

Course map and elevation profile

Ultra-Trail Kosciuszko by UTMB 160.5K course map and elevation profile with checkpoints marked
160.5K course
Ultra-Trail Kosciuszko by UTMB 105.6K course map and elevation profile with checkpoints marked
105.6K course
Ultra-Trail Kosciuszko by UTMB 50.3K course map and elevation profile with checkpoints marked
50.3K course
Ultra-Trail Kosciuszko by UTMB 33K course map and elevation profile with checkpoints marked
33K course

What the weather is usually like here

  • Over the last 5 years this week typically ran 10°C to 20°C here, with a high of 28°C and a low of 5°C.
  • 57% of those days saw rain. A real forecast lands about two weeks out and will appear here then.
  • Typical daily maximum wind was 17 km/h (a light breeze), with 27 km/h the highest value in the sample.
  • Sunrise 04:42, sunset 19:03.

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

160.5K course160 km · 6282 m gain · 32% uphill · 15 aid stations
  • Steep climb (10%+)
  • Climb (3-10%)
  • Flat
  • Descent
  • Steep descent (12%+)

The published GPX measures 160 km with 6282 m of climbing, 39 m per km. The course sits between 894 m and 2222 m of altitude. 51% of the gain sits in the first half.

  • 0-13 km · Start → Gaden Trout Hatchery: 281 m up / 263 m down; the stretch keeps rolling.
  • 13-32 km · Gaden Trout Hatchery → Bullocks Flat Outbound: 623 m up / 421 m down; the stretch climbs.
  • 32-44 km · Bullocks Flat Outbound → Perisher Waterpoint: 887 m up / 222 m down; the stretch climbs.
  • 44-57 km · Perisher Waterpoint → Charlotte Pass Resort: 559 m up / 543 m down; the stretch keeps rolling.
  • 57-68 km · Charlotte Pass Resort → Mt Kosciuszko: 537 m up / 218 m down; the stretch climbs.
  • 68-81 km · Mt Kosciuszko → Charlotte Pass Lookout: 357 m up / 726 m down; the stretch descends.
  • 81-91 km · Charlotte Pass Lookout → Guthega Base Camp: 382 m up / 570 m down; the stretch descends.
  • 91-99 km · Guthega Base Camp → Guthega Power Station Outbound: 466 m up / 479 m down; the stretch keeps rolling.
  • 99-105 km · Guthega Power Station Outbound → HiddenLoopPoint: 169 m up / 176 m down; the stretch keeps rolling.
  • 105-109 km · HiddenLoopPoint → Guthega Power Station Inbound: 219 m up / 248 m down; the stretch keeps rolling.
  • 109-119 km · Guthega Power Station Inbound → Perisher Ski Tube: 461 m up / 165 m down; the stretch climbs.
  • 119-132 km · Perisher Ski Tube → Bullocks Flat Inbound: 119 m up / 787 m down; the stretch descends.
  • 132-140 km · Bullocks Flat Inbound → Ngarigo Campground: 243 m up / 135 m down; the stretch keeps rolling.
  • 140-151 km · Ngarigo Campground → Keller Plaza: 394 m up / 235 m down; the stretch climbs.
  • 151-158 km · Keller Plaza → Black Sallees: 559 m up / 307 m down; the stretch climbs.
  • 158-160 km · Black Sallees → Finish: 14 m up / 318 m down; the stretch descends.

The first 5 km roll: 123 m up and 119 m down. You will not hold one rhythm here, so treat the early climbs as a warm-up.

The backbone of the course runs from km 30 to km 46: net 777 m over 16 km at 5% average, its steepest roughly 250 m section averaging 18%, 1029 m of climbing in total with 252 m given back. It tops out at 1900 m. Heaviest kilometres: km 36 142 m, km 37 120 m, km 35 104 m, km 38 99 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 151 and km 155: 508 m over 4.4 km at 12% average, its steepest roughly 250 m section averaging 26%. It tops out at 1894 m. Kilometre by kilometre: km 152 75 m, km 153 109 m, km 154 154 m, km 155 176 m. By the time you start it, about 90% 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 74 and loses 796 m by km 97 at 3% average, its steepest roughly 250 m section averaging 17%. 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 155 averages 25% 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 roll: 277 m up and 593 m down. Do not start the finishing effort early, there is another climb in there.

The leg from Gaden Trout Hatchery to Bullocks Flat Outbound is long and unsupported: 19 km and 623 m of climbing with no aid in between, so leave Gaden Trout Hatchery with full capacity.

You reach the climb after Bullocks Flat Outbound with about 421 m of descent already in your quads; treat its first half as recovery effort.

You reach the climb after Charlotte Pass Resort with about 543 m of descent already in your quads; treat its first half as recovery effort.

  • The organiser lists 4731 m of climbing; the published GPX measures 6282 m. The technical course notes use the published GPX measurement.
  • This course reaches 2222 m. At the high-point coordinate, the same week historically ran 3°C to 11°C. Typical daily maximum wind was 17 km/h, reaching 34 km/h in the sample. This is climate history, not the race-day forecast; keep the shell accessible if race week looks similar.
  • Start 03:00, sunrise 04:42: the first 1 hour 42 minutes are run in the dark. The headtorch goes on your head at the start, not in your pack.
  • Sunset is 19:03 and the finish cut-off is 15:10. A runner using the full time allowance spends the final 9 hours 39 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.
  • Consider bringing poles. The course averages 39 m of gain per km and the longest climb averaging over 5% runs 4.4 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
  • The high point is 2222 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 34 km of the course sits above 1800 m. The longest unbroken stretch up high is 21 km and the high zone spans roughly km 57 to km 78.
  • Point to point: the finish sits 29.7 km from the start as the crow flies. Sort the shuttle and your drop bag before race day.
  • At km 146.3 you pass right by the finish area with 13.7 km still to go; the noise there breaks more races than the climbs do.

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

Gaden Trout Hatcherykm 13

  • Collect food and fluids and leave within 60-90 seconds.
  • A heavy leg is next: 19 km with 451 m of climbing.
  • The longest unsupported stretch starts here: 19 km. Leave with full capacity.
  • Cut-off: 2h 25m after the start.

Bullocks Flat Outboundkm 32

  • 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: 12 km with 750 m of climbing.
  • Cut-off: 6h 35m after the start.

Charlotte Pass Resortkm 57

  • 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: 11 km with 545 m of climbing.
  • Cut-off: 12h 5m after the start.

Guthega Power Station Outboundkm 99

  • 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: 5.1 km with 297 m of climbing.
  • Cut-off: 20h 50m after the start.

Guthega Power Station Inboundkm 109

  • 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: 10 km with 489 m of climbing.
  • Cut-off: 23h 10m after the start.

Perisher Ski Tubekm 119

  • 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: 25h 20m after the start.

Bullocks Flat Inboundkm 132

  • 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: 27h 50m after the start.

Keller Plazakm 151

  • 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: 6.4 km with 583 m of climbing.
  • A 23% pitch starts about 1.5 km after the station; do not enter it cooled down.
  • Cut-off: 32h 15m after the start.
  • The longest stretch between official aid stations runs from Gaden Trout Hatchery (km 13) to Bullocks Flat Outbound (km 32): 19 km, with 451 m of climbing in between. Top up at Gaden Trout Hatchery and size what you carry to the expected duration and your own drinking rate.
  • Drinks only, no food, at Perisher Waterpoint (km 44) and Black Sallees (km 158). 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.
  • Mt Kosciuszko (km 68) is a timing point only, with nothing on the table. Load up as you leave Charlotte Pass Resort.
  • Hot food is served at Guthega Base Camp (km 91) and Guthega Power Station Outbound (km 99) 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 Gaden Trout Hatchery (km 13) and Bullocks Flat Outbound (km 32) 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 bags at Bullocks Flat Outbound (km 32), Charlotte Pass Resort (km 57), Guthega Power Station Outbound (km 99), Guthega Power Station Inbound (km 109), Perisher Ski Tube (km 119), Bullocks Flat Inbound (km 132), and Keller Plaza (km 151). 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 Bullocks Flat Outbound (km 32), Charlotte Pass Resort (km 57), Charlotte Pass Lookout (km 81), Guthega Base Camp (km 91), Guthega Power Station Outbound (km 99), Guthega Power Station Inbound (km 109), Perisher Ski Tube (km 119), Bullocks Flat Inbound (km 132), Keller Plaza (km 151), Black Sallees (km 158), and Finish (km 163). 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 Bullocks Flat Outbound (km 32) to Perisher Waterpoint (km 44): 12 km with 750 m of climbing. Treat it as the slowest part of your day and get your food out before it.
  • Medical support is available at Start (km 0), Gaden Trout Hatchery (km 13), Bullocks Flat Outbound (km 32), Perisher Waterpoint (km 44), Charlotte Pass Resort (km 57), Charlotte Pass Lookout (km 81), Guthega Base Camp (km 91), Guthega Power Station Outbound (km 99), Guthega Power Station Inbound (km 109), Perisher Ski Tube (km 119), Bullocks Flat Inbound (km 132), Ngarigo Campground (km 140), Keller Plaza (km 151), Black Sallees (km 158), and Finish (km 163). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
  • About 2 km after Keller Plaza (km 151), a roughly 250 m section averaging 23% 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 36h 10m, 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 Guthega Base Camp (km 91) to Guthega Power Station Outbound (km 99): the official time budget is 1h 45m for 8 km and 466 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Official cut-off ladder

LegDistanceD+Official time budgetCloses
Start → Gaden Trout Hatchery13 km281 m2h 25mstart + 2h 25m
Gaden Trout Hatchery → Bullocks Flat Outbound19 km623 m4h 10mstart + 6h 35m
Bullocks Flat Outbound → Charlotte Pass Resortpasses Perisher Waterpoint, which has no time limit25 km1446 m5h 30mstart + 12h 5m
Charlotte Pass Resort → Charlotte Pass Lookoutpasses Mt Kosciuszko, which has no time limit24 km894 m5hstart + 17h 5m
Charlotte Pass Lookout → Guthega Base Camp9.9 km382 m2hstart + 19h 5m
Guthega Base Camp → Guthega Power Station Outbound8.5 km466 m1h 45mstart + 20h 50m
Guthega Power Station Outbound → Guthega Power Station Inboundpasses HiddenLoopPoint, which has no time limit9.6 km388 m2h 20mstart + 23h 10m
Guthega Power Station Inbound → Perisher Ski Tube10 km461 m2h 10mstart + 25h 20m
Perisher Ski Tube → Bullocks Flat Inbound13 km119 m2h 30mstart + 27h 50m
Bullocks Flat Inbound → Ngarigo Campground8.1 km243 m1h 50mstart + 29h 40m
Ngarigo Campground → Keller Plaza11 km394 m2h 35mstart + 32h 15m
Keller Plaza → Finishpasses Black Sallees, which has no time limit12 km573 m3h 55mstart + 36h 10m

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

StationKmFrom previousSuppliesMedicalCrewCut-off
StartDrop bag0——YesNo—
Gaden Trout Hatchery1313FoodYesNoFriday 05:25
Bullocks Flat OutboundDrop bag3219FoodYesYesFriday 09:35
Perisher Waterpoint4412DrinksYesNo—
Charlotte Pass ResortDrop bag5713FoodYesYesFriday 15:05
Mt Kosciuszko6811None———
Charlotte Pass Lookout8113FoodYesYesFriday 20:05
Guthega Base Camp919.9Hot foodYesYesFriday 22:05
Guthega Power Station OutboundDrop bag998.4Hot foodYesYesFriday 23:50
HiddenLoopPoint1055.1None———
Guthega Power Station InboundDrop bag1094.5Hot foodYesYesSaturday 02:10
Perisher Ski TubeDrop bag11910Hot foodYesYesSaturday 04:20
Bullocks Flat InboundDrop bag13213Hot foodYesYesSaturday 06:50
Ngarigo Campground1408.1Hot foodYesNoSaturday 08:40
Keller PlazaDrop bag15111Hot foodYesYesSaturday 11:15
Black Sallees1586.4DrinksYesYes—
FinishDrop bag1635.3Hot foodYesYesSaturday 15:10

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

105.6K course105 km · 3920 m gain · 27% uphill · 9 aid stations
  • Steep climb (10%+)
  • Climb (3-10%)
  • Flat
  • Descent
  • Steep descent (12%+)

The published GPX measures 105 km with 3920 m of climbing, 37 m per km. The course sits between 1121 m and 2221 m of altitude. 52% of the gain sits in the first half.

  • 0-16 km · Start → Charlotte Pass Resort: 580 m up / 546 m down; the stretch keeps rolling.
  • 16-28 km · Charlotte Pass Resort → Mt Kosciuszko: 598 m up / 158 m down; the stretch climbs.
  • 28-41 km · Mt Kosciuszko → Charlotte Pass Lookout: 433 m up / 883 m down; the stretch descends.
  • 41-51 km · Charlotte Pass Lookout → Guthega Base Camp: 336 m up / 503 m down; the stretch descends.
  • 51-63 km · Guthega Base Camp → Perisher Ski Tube: 483 m up / 311 m down; the stretch climbs.
  • 63-76 km · Perisher Ski Tube → Bullocks Flat: 265 m up / 862 m down; the stretch descends.
  • 76-84 km · Bullocks Flat → Ngarigo Campground: 212 m up / 114 m down; gently rolling.
  • 84-96 km · Ngarigo Campground → Keller Plaza: 363 m up / 238 m down; the stretch climbs.
  • 96-102 km · Keller Plaza → Black Sallees: 590 m up / 186 m down; the stretch climbs.
  • 102-105 km · Black Sallees → Finish: 45 m up / 462 m down; the stretch descends.

The race climbs from the gun: 120 m over the first 5 km. Do not chase the crowd, the two minutes you win here get taken back with interest.

The longest drag runs from km 15 to km 27: net 469 m over 12 km at 4% average, its steepest roughly 250 m section averaging 11%, 624 m of climbing in total with 155 m given back. It tops out at 2220 m. Heaviest kilometres: km 27 86 m, km 24 73 m, km 25 72 m, km 26 58 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 96 to km 101: 519 m over 4.7 km at 11% average, its steepest roughly 250 m section averaging 24%. It tops out at 1902 m. Kilometre by kilometre: km 97 64 m, km 98 98 m, km 99 147 m, km 100 182 m, km 101 83 m. By the time you start it, about 84% of the day's climbing is behind you. At this point in the day most runners walk this gradient. Settle into a hiking rhythm and let the metres come.

The longest descent starts at km 34 and loses 592 m by km 55 at 3% average, its steepest roughly 250 m section averaging 16%. 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 101 averages 25% 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 climb 273 m and then drop 598 m. Walk the climb, take the descent back, and hold the sprint until the drop is done.

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

The leg from Mt Kosciuszko to Charlotte Pass Lookout is long and unsupported: 13 km and 433 m of climbing with no aid in between, so leave Mt Kosciuszko with full capacity.

You reach the climb after Guthega Base Camp with about 503 m of descent already in your quads; treat its first half as recovery effort.

A steep pitch starts within about 0.4 km of Keller Plaza; keep the stop short and do not enter it on cooled-down legs.

  • The organiser lists 2973 m of climbing; the published GPX measures 3920 m. The technical course notes use the published GPX measurement.
  • This course reaches 2221 m. At the high-point coordinate, the same week historically ran 3°C to 11°C. Typical daily maximum wind was 17 km/h, reaching 34 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 19:04 and the finish cut-off is 12:10. A runner using the full time allowance spends the final 9 hours 39 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.
  • Consider bringing poles. The course averages 37 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.
  • The high point is 2221 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 33 km of the course sits above 1800 m. The longest unbroken stretch up high is 21 km and the high zone spans roughly km 17 to km 38.
  • Point to point: the finish sits 13.8 km from the start as the crow flies. Sort the shuttle and your drop bag before race day.
  • At km 91.6 you pass right by the finish area with 13.6 km still to go; the noise there breaks more races than the climbs do.

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

Charlotte Pass Resortkm 16

  • 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: 11 km with 535 m of climbing.
  • Cut-off: 4h 50m after the start.

Charlotte Pass Lookoutkm 41

  • Collect food and fluids and leave within 60-90 seconds.
  • Crew access is allowed here.
  • Cut-off: 10h 50m after the start.

Guthega Base Campkm 51

  • Take hot food you digest easily and top up fluids.
  • Crew access is allowed here.
  • A heavy leg is next: 13 km with 411 m of climbing.
  • Cut-off: 13h 30m after the start.

Perisher Ski Tubekm 63

  • 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 40m after the start.

Bullocks Flatkm 76

  • 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: 19h 45m after the start.

Keller Plazakm 96

  • 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: 6.4 km with 581 m of climbing.
  • A 14% pitch starts about 1.5 km after the station; do not enter it cooled down.
  • Cut-off: 24h 40m after the start.
  • The longest stretch between official aid stations runs from Start (km 0) to Charlotte Pass Resort (km 16): 16 km, with 465 m of climbing in between. Top up at Start and size what you carry to the expected duration and your own drinking rate.
  • Drinks only, no food, at Black Sallees (km 102). 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.
  • Mt Kosciuszko (km 28) is a timing point only, with nothing on the table. Load up as you leave Charlotte Pass Resort.
  • Hot food is served at Guthega Base Camp (km 51) and Perisher Ski Tube (km 63) and 3 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 Charlotte Pass Resort (km 16) and Charlotte Pass Lookout (km 41). 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 Charlotte Pass Resort (km 16), Perisher Ski Tube (km 63), Bullocks Flat (km 76), and Keller Plaza (km 96). 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 Charlotte Pass Resort (km 16), Charlotte Pass Lookout (km 41), Guthega Base Camp (km 51), Perisher Ski Tube (km 63), Bullocks Flat (km 76), Keller Plaza (km 96), Black Sallees (km 102), and Finish (km 107). 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 Keller Plaza (km 96) to Black Sallees (km 102): 6 km with 581 m of climbing. Treat it as the slowest part of your day and get your food out before it.
  • Medical support is available at Start (km 0), Charlotte Pass Resort (km 16), Charlotte Pass Lookout (km 41), Guthega Base Camp (km 51), Perisher Ski Tube (km 63), Bullocks Flat (km 76), Ngarigo Campground (km 84), Keller Plaza (km 96), Black Sallees (km 102), and Finish (km 107). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
  • About 2 km after Keller Plaza (km 96), a roughly 250 m section averaging 14% 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 40m, 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 Charlotte Pass Resort (km 16) to Charlotte Pass Lookout (km 41): the official time budget is 6h for 24 km and 1031 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Official cut-off ladder

LegDistanceD+Official time budgetCloses
Start → Charlotte Pass Resort16 km580 m4h 50mstart + 4h 50m
Charlotte Pass Resort → Charlotte Pass Lookoutpasses Mt Kosciuszko, which has no time limit24 km1031 m6hstart + 10h 50m
Charlotte Pass Lookout → Guthega Base Camp9.9 km336 m2h 40mstart + 13h 30m
Guthega Base Camp → Perisher Ski Tube13 km483 m3h 10mstart + 16h 40m
Perisher Ski Tube → Bullocks Flat13 km265 m3h 5mstart + 19h 45m
Bullocks Flat → Ngarigo Campground8 km212 m2h 10mstart + 21h 55m
Ngarigo Campground → Keller Plaza11 km363 m2h 45mstart + 24h 40m
Keller Plaza → Finishpasses Black Sallees, which has no time limit12 km635 m4hstart + 28h 40m

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

StationKmFrom previousSuppliesMedicalCrewCut-off
StartDrop bag0——YesNo—
Charlotte Pass ResortDrop bag1616FoodYesYesFriday 12:20
Mt Kosciuszko2811None———
Charlotte Pass Lookout4113FoodYesYesFriday 18:20
Guthega Base Camp519.9Hot foodYesYesFriday 21:00
Perisher Ski TubeDrop bag6313Hot foodYesYesSaturday 00:10
Bullocks FlatDrop bag7613Hot foodYesYesSaturday 03:15
Ngarigo Campground848Hot foodYesNoSaturday 05:25
Keller PlazaDrop bag9611Hot foodYesYesSaturday 08:10
Black Sallees1026.4DrinksYesYes—
FinishDrop bag1075.3Hot foodYesYesSaturday 12:10

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

50.3K course50 km · 1890 m gain · 19% uphill · 4 aid stations
  • Steep climb (10%+)
  • Climb (3-10%)
  • Flat
  • Descent
  • Steep descent (12%+)

The published GPX measures 50 km with 1890 m of climbing, 38 m per km. The course sits between 1121 m and 1904 m of altitude. 37% of the gain sits in the first half.

  • 0-20 km · Start → Bullocks Flat: 599 m up / 1188 m down; the stretch descends.
  • 20-28 km · Bullocks Flat → Ngarigo Campground: 239 m up / 130 m down; the stretch keeps rolling.
  • 28-40 km · Ngarigo Campground → Keller Plaza: 399 m up / 196 m down; the stretch climbs.
  • 40-46 km · Keller Plaza → Black Sallees: 603 m up / 176 m down; the stretch climbs.
  • 46-50 km · Black Sallees → Finish: 46 m up / 552 m down; the stretch descends.

The first 4 km roll: 123 m up and 122 m down. You will not hold one rhythm here, so treat the early climbs as a warm-up.

The backbone of the course runs from km 41 to km 46: net 520 m over 5 km at 10% average, its steepest roughly 250 m section averaging 28%, 591 m of climbing in total with 71 m given back. It tops out at 1898 m. Kilometre by kilometre: km 42 64 m, km 43 103 m, km 44 163 m, km 45 189 m, km 46 61 m. By the time you start it, about 66% 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 9 and loses 693 m by km 18 at 8% average, its steepest roughly 250 m section averaging 17%. 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 25% 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 roll: 274 m up and 596 m down. Do not start the finishing effort early, there is another climb in there.

A steep pitch starts within about 1 km of Keller Plaza; keep the stop short and do not enter it on cooled-down legs.

  • The organiser lists 1355 m of climbing; the published GPX measures 1890 m. The technical course notes use the published GPX measurement.
  • Sunset is 19:04 and the finish cut-off is 21:20. A runner using the full time allowance spends the final 2 hours 16 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.
  • Consider bringing poles. The course averages 38 m of gain per km and the longest climb averaging over 5% runs 5 km; if you have trained with them and the organiser allows them, use them on the climbs and stow them on runnable ground.
  • Most of the climbing waits in the second half. Feeling good early is a trap here.
  • The high point is 1904 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 3.1 km of the course sits above 1800 m. The longest unbroken stretch up high is 1.9 km and the high zone spans roughly km 45 to km 47.
  • Point to point: the finish sits 13.8 km from the start as the crow flies. Sort the shuttle and your drop bag before race day.
  • At km 36.5 you pass right by the finish area with 13.6 km still to go; the noise there breaks more races than the climbs do.
  • Km 3.5 to 5.5 is the same ground you covered at km 3; note your pace on the first pass and use it as the yardstick on the second.

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

Bullocks Flatkm 20

  • Collect food and fluids and leave within 60-90 seconds.
  • Crew access is allowed here.
  • Cut-off: 4h 50m after the start.

Ngarigo Campgroundkm 28

  • Collect food and fluids and leave within 60-90 seconds.
  • A heavy leg is next: 11 km with 250 m of climbing.
  • Cut-off: 6h 50m after the start.

Keller Plazakm 40

  • 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: 6.4 km with 578 m of climbing.
  • Cut-off: 9h 50m after the start.
  • The longest stretch between official aid stations runs from Start (km 0) to Bullocks Flat (km 20): 20 km, with 371 m of climbing in between. Top up at Start and size what you carry to the expected duration and your own drinking rate.
  • Drinks only, no food, at Black Sallees (km 46). 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 Bullocks Flat (km 20) and Ngarigo Campground (km 28) and 1 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 Keller Plaza (km 40). 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 Bullocks Flat (km 20) and Keller Plaza (km 40). 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 Keller Plaza (km 40) to Black Sallees (km 46): 6 km with 578 m of climbing. Treat it as the slowest part of your day and get your food out before it.
  • Medical support is available at Start (km 0), Bullocks Flat (km 20), Ngarigo Campground (km 28), Keller Plaza (km 40), Black Sallees (km 46), and Finish (km 51). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
  • The overall cut-off is 14h 20m, 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 Bullocks Flat (km 20): the official time budget is 4h 50m for 20 km and 599 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.

Official cut-off ladder

LegDistanceD+Official time budgetCloses
Start → Bullocks Flat20 km599 m4h 50mstart + 4h 50m
Bullocks Flat → Ngarigo Campground8.1 km239 m2hstart + 6h 50m
Ngarigo Campground → Keller Plaza11 km399 m3hstart + 9h 50m
Keller Plaza → Finishpasses Black Sallees, which has no time limit12 km648 m4h 30mstart + 14h 20m

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

StationKmFrom previousSuppliesMedicalCrewCut-off
StartDrop bag0——YesNo—
Bullocks Flat2020FoodYesYesThursday 11:50
Ngarigo Campground288.1FoodYesNoThursday 13:50
Keller PlazaDrop bag4011FoodYesYesThursday 16:50
Black Sallees466.4DrinksYesNo—
FinishDrop bag515.3Hot foodYesNoThursday 21:20

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

33K course33 km · 915 m gain · 13% uphill · 2 aid stations
  • Climb (3-10%)
  • Flat
  • Descent
  • Steep descent (12%+)

The published GPX measures 33 km with 915 m of climbing, 28 m per km. The course sits between 1121 m and 1820 m of altitude. 45% of the gain sits in the first half.

  • 0-16 km · Start → Bullocks Flat: 383 m up / 973 m down; the stretch descends.
  • 16-24 km · Bullocks Flat → Ngarigo Campground: 234 m up / 124 m down; gently rolling.
  • 24-33 km · Ngarigo Campground → Finish: 295 m up / 168 m down; the stretch keeps rolling.

The race climbs from the gun: 10 m over the first 2.6 km. Do not chase the crowd, the two minutes you win here get taken back with interest.

The longest descent starts at km 5 and loses 693 m by km 13 at 8% average, its steepest roughly 250 m section averaging 19%. Its length can load the quads, so begin under control and build rhythm only when the ground and visibility allow it.

The last 4 km climb 61 m to the line. Know it going in and save something for it.

  • The organiser lists 596 m of climbing; the published GPX measures 915 m. The technical course notes use the published GPX measurement.
  • Cut-off lands at 18:05 and sunset at 19:04, near enough the same moment. Go slower than planned and the last kilometres are in the dark, so pack the torch.
  • Poles are optional: 28 m of gain per km. Bring them to protect your legs, not to gain speed.
  • The high point is 1820 m. Coming from sea level, your heart rate and breathing shift at the same pace, so leave yourself room in the first hour.
  • Point to point: the finish sits 13.8 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

Ngarigo Campgroundkm 24

  • Collect food and fluids and leave within 60-90 seconds.
  • A heavy leg is next: 9.9 km with 255 m of climbing.
  • Cut-off: 5h 20m after the start.
  • The longest stretch between official aid stations runs from Start (km 0) to Bullocks Flat (km 16): 16 km, with 269 m of climbing in between. Top up at Start and size what you carry to the expected duration and your own drinking rate.
  • Food is available at Bullocks Flat (km 16) and Ngarigo Campground (km 24). 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 Finish (km 34). 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 Ngarigo Campground (km 24), leaving 9 km to the finish. After that you are on what you carry.
  • Another heavy leg runs from Ngarigo Campground (km 24) to Finish (km 34): 10 km with 255 m of climbing. Treat it as the slowest part of your day and get your food out before it.
  • Medical support is available at Start (km 0), Bullocks Flat (km 16), Ngarigo Campground (km 24), and Finish (km 34). If something is wrong with your feet or your stomach, deal with it there rather than pushing on.
  • The overall cut-off is 8h 5m, 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 Bullocks Flat (km 16) to Ngarigo Campground (km 24): the official time budget is 1h 50m for 8 km and 234 m of climbing. Station stops come out of that same budget, so do not enter the leg already behind schedule.
StationKmFrom previousSuppliesMedicalCrewCut-off
StartDrop bag0——YesNo—
Bullocks Flat1616FoodYesNoThursday 13:30
Ngarigo Campground248.1FoodYesNoThursday 15:20
FinishDrop bag349.9FoodYesYesThursday 18:05

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 planTrail effort distanceRace time predictorRace fuellingPace calculatorTraining lead time

Registration

  • StandardThu, Mar 12, 2026Registration open

Data sources: UTMB World Series, official site (kosciuszko.utmb.world) · Last checked:

Tune-up races

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Frequently asked questions

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What is Ultra-Trail Kosciuszko by UTMB?

Ultra-Trail Kosciuszko is Australia's Alpine Ultra-Trail running event, held in the Snowy Mountains National Park in New South Wales. Trail running distances include 100 Miler, 100km, 50km and 30km options. The event is part of the UTMB World Series.

When is Ultra-Trail Kosciuszko by UTMB 2026?

Ultra-Trail Kosciuszko by UTMB takes place on Thu, Nov 26, 2026 - Sat, Nov 28, 2026. Start time: 07:30.

Where does Ultra-Trail Kosciuszko by UTMB take place?

Ultra-Trail Kosciuszko by UTMB takes place in Thredbo, Australia.

What are the courses and distances of Ultra-Trail Kosciuszko by UTMB 2026?

Ultra-Trail Kosciuszko by UTMB offers 4 courses: 160.5K (160.5 km, 4731 m D+); 105.6K (105.6 km, 2973 m D+); 50.3K (50.3 km, 1355 m D+); 33K (33 km, 596 m D+).

How hard is Ultra-Trail Kosciuszko by UTMB 2026?

Difficulty is measured in km-effort: distance plus ascent divided by 100. The 160.5K course covers 160.5 km with 4731 m of climbing, which is 208 km-effort and falls in ITRA category XL. All courses: 160.5K 208 km-effort (XL), 105.6K 135 km-effort (L), 50.3K 64 km-effort (S), 33K 39 km-effort (XS).

Where are the Ultra-Trail Kosciuszko by UTMB photos?

Ultra-Trail Kosciuszko by UTMB photos are in the organiser's gallery: https://kosciuszko.utmb.world/get-excited/gallery. The gallery may also cover earlier editions.

What is the official website of Ultra-Trail Kosciuszko by UTMB?

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

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

The 160.5K course is point to point, finishing 29.7 km from the start; measured from the GPX file it runs 159.9 km. The 105.6K course is point to point, finishing 13.8 km from the start; measured from the GPX file it runs 105.2 km. The 50.3K course is point to point, finishing 13.8 km from the start; measured from the GPX file it runs 50.1 km.

Where is the hardest climb at Ultra-Trail Kosciuszko by UTMB 2026?

The biggest climb on the 160.5K course runs from km 30 to km 46: 15.8 km for 777 m at 5% average; its steepest roughly 250 m section averages 18%. It tops out at 1900 m.

How high does Ultra-Trail Kosciuszko by UTMB 2026 go?

The 160.5K course runs between 894 m and 2222 m with 6282 m of total climbing.

Do you need poles at Ultra-Trail Kosciuszko by UTMB 2026?

The 160.5K course averages 39 m of gain per km with a longest climb of 4.4 km, so poles help noticeably.

Do you need a headtorch at Ultra-Trail Kosciuszko by UTMB 2026?

160.5K: Start 03:00, sunrise 04:42: the first 1 hour 42 minutes are run in the dark. The headtorch goes on your head at the start, not in your pack. Sunset is 19:03 and the finish cut-off is 15:10. A runner using the full time allowance spends the final 9 hours 39 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.

What is the weather like at Ultra-Trail Kosciuszko by UTMB 2026?

Over the last 5 years the same week here measured 10°C to 20°C, with a high of 28°C, a low of 5°C and rain on 57% of days. A real forecast lands about two weeks out.

Where are the aid stations at Ultra-Trail Kosciuszko by UTMB 2026?

The 160.5K course has 15 stations; the first at km 13 and the last at km 158. The longest gap between them is 19 km, between Gaden Trout Hatchery and Bullocks Flat Outbound.

What is served at the Ultra-Trail Kosciuszko by UTMB 2026 aid stations?

For the 160.5K course: Hot food: Guthega Base Camp (91. km), Guthega Power Station Outbound (99. km), Guthega Power Station Inbound (109. km), Perisher Ski Tube (119. km), Bullocks Flat Inbound (132. km), Ngarigo Campground (140. km), Keller Plaza (151. km). Drinks only: Perisher Waterpoint (44. km), Black Sallees (158. km). No supplies at all: Mt Kosciuszko (68. km), HiddenLoopPoint (105. km).

Is there a drop bag at Ultra-Trail Kosciuszko by UTMB 2026?

Yes. On the 160.5K course the drop bag point is Bullocks Flat Outbound (km 32).

What are the cut-off times for the 160.5K at Ultra-Trail Kosciuszko by UTMB 2026?

On the 160.5K course at Ultra-Trail Kosciuszko by UTMB 2026 the finish cut-off is Saturday 15:10. Intermediate cut-offs: Gaden Trout Hatchery (km 13) Friday 05:25, Bullocks Flat Outbound (km 32) Friday 09:35, Charlotte Pass Resort (km 57) Friday 15:05, Charlotte Pass Lookout (km 81) Friday 20:05, Guthega Base Camp (km 91) Friday 22:05, Guthega Power Station Outbound (km 99) Friday 23:50, Guthega Power Station Inbound (km 109) Saturday 02:10, Perisher Ski Tube (km 119) Saturday 04:20, Bullocks Flat Inbound (km 132) Saturday 06:50, Ngarigo Campground (km 140) Saturday 08:40, Keller Plaza (km 151) Saturday 11:15.

What are the cut-off times for the 105.6K at Ultra-Trail Kosciuszko by UTMB 2026?

On the 105.6K course at Ultra-Trail Kosciuszko by UTMB 2026 the finish cut-off is Saturday 12:10. Intermediate cut-offs: Charlotte Pass Resort (km 16) Friday 12:20, Charlotte Pass Lookout (km 41) Friday 18:20, Guthega Base Camp (km 51) Friday 21:00, Perisher Ski Tube (km 63) Saturday 00:10, Bullocks Flat (km 76) Saturday 03:15, Ngarigo Campground (km 84) Saturday 05:25, Keller Plaza (km 96) Saturday 08:10.

What are the cut-off times for the 50.3K at Ultra-Trail Kosciuszko by UTMB 2026?

On the 50.3K course at Ultra-Trail Kosciuszko by UTMB 2026 the finish cut-off is Thursday 21:20. Intermediate cut-offs: Bullocks Flat (km 20) Thursday 11:50, Ngarigo Campground (km 28) Thursday 13:50, Keller Plaza (km 40) Thursday 16:50.

What are the cut-off times for the 33K at Ultra-Trail Kosciuszko by UTMB 2026?

On the 33K course at Ultra-Trail Kosciuszko by UTMB 2026 the finish cut-off is Thursday 18:05. Intermediate cut-offs: Bullocks Flat (km 16) Thursday 13:30, Ngarigo Campground (km 24) Thursday 15:20.

What time does Ultra-Trail Kosciuszko by UTMB 2026 start?

Known start times: 160.5K 03:00, 105.6K 07:30, 50.3K 07:00, 33K 10:00, local time. Confirm against the organiser's schedule in race week.

What is the time limit at Ultra-Trail Kosciuszko by UTMB 2026?

The finish time limit is 160.5K Saturday 15:10, 105.6K Saturday 12:10, 50.3K Thursday 21:20, 33K Thursday 18:05. 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 Kosciuszko by UTMB 2026?

Yes. The GPX files for the 160.5K, 105.6K, 50.3K, 33K courses can be downloaded from the course section on this page, next to the route and grade profile.

Which Ultra-Trail Kosciuszko by UTMB course should you choose?

The shortest option is 33K (33 km, 596 m D+) and the longest is 160.5K (160.5 km, 4731 m D+). With little trail experience the 33K is the safer start; the 160.5K demands an all-day effort and cut-off management.

What are the gradients like at Ultra-Trail Kosciuszko by UTMB 2026?

The 160.5K course averages 39 m of climbing per km, with 6282 m of total ascent and 5833 m of descent. The steepest kilometre averages 18%.

How runnable is the Ultra-Trail Kosciuszko by UTMB 2026 course?

Expect a mix of running and power hiking: 39 m of gain per km; hiking the long climbs is normal, and the longest climb runs 15.8 km.

Where is the steepest part of Ultra-Trail Kosciuszko by UTMB 2026?

The steepest kilometre of the 160.5K course averages 18% and sits inside the climb between km 151 and km 155.

How many climbs does Ultra-Trail Kosciuszko by UTMB 2026 have?

The 160.5K course has 11 distinct climbs. The biggest: km 30-46 (777 m at 5%); km 151-155 (508 m at 12%); km 107-119 (485 m at 4%).

Is there a long climb at Ultra-Trail Kosciuszko by UTMB 2026?

Yes. The longest climb runs 15.8 km from km 30, gaining 777 m at 5% average, topping out at 1900 m.

What are the descents like at Ultra-Trail Kosciuszko by UTMB 2026?

There is 5833 m of descent in total. The longest drop runs 23.5 km between km 74 and km 97, losing 796 m.

Are there flat sections at Ultra-Trail Kosciuszko by UTMB 2026?

Partly: about 43% of the course is near flat, the rest climbs or descends.

Is the hard part of Ultra-Trail Kosciuszko by UTMB 2026 early or late?

The climbing is evenly split: 51% of it sits in the first half.

What is the elevation range at Ultra-Trail Kosciuszko by UTMB 2026?

The lowest point of the 160.5K course sits at 894 m and the highest at 2222 m, a range of 1328 m. Conditions change noticeably between the two, so plan clothing in layers.

Where does Ultra-Trail Kosciuszko by UTMB 2026 reach its high point?

The course tops out at 2222 m, reached around km 67.

Are poles mandatory at Ultra-Trail Kosciuszko 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 Kosciuszko by UTMB 2026?

Yes: the longest stretch without aid on the 160.5K course is 19.4 km, so carrying backup water is essential.