Ultra-Trail Kosciuszko - Kosci50 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 5 aid stations to plan your nutrition and hydration segment by segment.
What's your time based on your UTMB?
Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.
Predicted race time based on your UTMB Index® · smoothed times achieved by runners at your level in past editions
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Cut-off times and crew - Ultra-Trail Kosciuszko - Kosci50 · 2026
Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.
What you'll find at each aid station
| Product | Bullocks Flatkm 20.3 | Ngarigo Campgroundkm 28.4 | Keller Plazakm 39.6 | Black Salleeskm 46.0 | Finishkm 51.3 |
|---|---|---|---|---|---|
| Water | available | available | available | available | available |
| Brand products · Näak | available | available | available | unavailable | unavailable |
| Hot meal | unavailable | unavailable | unavailable | unavailable | available |
La feuille de ton assistance pour Ultra-Trail Kosciuszko - Kosci50 · 2026
Ton assistance peut te voir à ces postes. Ton plan RAVIT y met tes heures, ce qu'elle te tend et la route pour y aller.
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
Ultra-Trail Kosciuszko - Kosci50: times, aid-station stops and fuelling needs by UTMB® Index
Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 6h59 to 4h13, and the aid-station stop budget from 0h06 to 0h02. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 6h59 | 0h06 | — | 419 g | 4.9 L | 3,492 mg | +6h31 |
| 550 | 6h24 | 0h05 | — | 384 g | 4.5 L | 3,200 mg | +7h06 |
| 600 | 5h39 | 0h05 | — | 339 g | 4 L | 2,825 mg | +7h51 |
| 650 | 5h09 | 0h03 | — | 309 g | 3.6 L | 2,575 mg | +8h21 |
| 700 | 4h51 | 0h03 | — | 291 g | 3.4 L | 2,425 mg | +8h39 |
| 750 | 4h33 | 0h02 | — | 273 g | 3.2 L | 2,275 mg | +8h57 |
| 800 | 4h13 | 0h02 | — | 253 g | 3 L | 2,108 mg | +9h17 |
Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.
Measured on the 2025 edition: the field checkpoint by checkpoint
1,266 starters, 5.6% DNF rate, 7 timed checkpoints.
| Segment | km | Median | Middle half | Measured | Median passage | Still ranked |
|---|---|---|---|---|---|---|
| Start - Perisher → Bullocks Flat 1 | 17.7 | 2 h 07 | 1 h 54 – 2 h 21 | 1,261 | 2 h 07 | 1,261 |
| Bullocks Flat 1 → Ngarigo Campground | 25.3 | 1 h 11 | 59 min – 1 h 23 | 1,241 | 3 h 17 | 1,245 |
| Ngarigo Campground → Friday Flat | 34.4 | 1 h 28 | 1 h 15 – 1 h 43 | 1,230 | 4 h 44 | 1,234 |
| Friday Flat → Village Green | 36.6 | 17 min | 15 min – 20 min | 1,219 | 5 h 01 | 1,223 |
| Village Green → Dead Horse Gap Trail Head | 41.2 | 1 h 01 | 51 min – 1 h 12 | 1,194 | 6 h 02 | 1,198 |
| Dead Horse Gap Trail Head → Eagles Nest | 46.7 | 1 h 18 | 1 h 09 – 1 h 30 | 1,191 | 7 h 22 | 1,196 |
| Eagles Nest → Finish - Thredbo | 50.5 | 45 min | 36 min – 58 min | 1,190 | 8 h 07 | 1,195 |
“Median passage” is elapsed time from the start, not a clock time: the clock time depends on the edition.
Where runners drop out. Village Green (25) · Bullocks Flat 1 (16) · Ngarigo Campground (11) out of 71 total DNFs.
RAVIT record from the official timing of the 2025 edition, data from September 20, 2026.
SourceOther trails worth preparing for
- Ultra-Trail Kosciuszko - Kosci3034 km · 740 m D+ · November 26, 2026
- Ultra-Trail Australia - UTA5051 km · 2,429 m D+ · May 15, 2027
- Bondi to Manly80 km · 1,414 m D+ · October 24, 2026
- Blackall 5050 km · 1,569 m D+ · October 17, 2026
- Yurrebilla 5654 km · 1,722 m D+ · September 27, 2026
- GNW 5050 km · 1,655 m D+ · September 20, 2026
- Kosciuszko - Kosci 3032 km · 992 m D+ · November 27, 2025
- Kosciuszko - Kosci 5051 km · 1,801 m D+ · November 27, 2025
Sources and method
- Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
- Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
- Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — Ultra-Trail Kosciuszko - Kosci50
Weather for Ultra-Trail Kosciuszko - Kosci50
The weather for Ultra-Trail Kosciuszko - Kosci50 will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.
Detailed weather for Ultra-Trail Kosciuszko - Kosci50, hour by hour on the courseFrequently asked questions
How many checkpoints?
Ultra-Trail Kosciuszko - Kosci50 has 5 checkpoints: 4 aid stations and 1 water point. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Bullocks Flat: 20.3 km and 407 m elevation gain. That's the one to load up for first.
How do I find the exact location of an aid station?
The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.
What distance and elevation gain?
Ultra-Trail Kosciuszko - Kosci50 is 51 km long with 1622 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 5h39 for Ultra-Trail Kosciuszko - Kosci50.
What's the weather forecast?
The weather for Ultra-Trail Kosciuszko - Kosci50 will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.
Want to stack the odds in your favor for Ultra-Trail Kosciuszko - Kosci50?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
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