Kosciuszko - Kosci 50 2025
The forecast arrives five days before the start.
Here you'll find the elevation profile and an estimated finish time based on your UTMB Index.
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 - Kosciuszko - Kosci 50 · 2025
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Bullocks Flat 1 | 17.7 | 0 m | 17.7 | 426 m | 1,020 m | — | Thu 11:45 AM | — |
| Ngarigo Campground | 25.3 | 0 m | 7.6 | 260 m | 158 m | — | Thu 01:45 PM | — |
| Friday Flat | 34.4 | 0 m | 9.0 | 330 m | 183 m | — | — | — |
| Village Green | 36.6 | 0 m | 2.3 | 52 m | 56 m | — | Thu 04:45 PM | — |
| Dead Horse Gap Trail Head | 41.2 | 0 m | 4.5 | 219 m | 42 m | — | — | — |
| Eagles Nest | 46.7 | 0 m | 5.5 | 480 m | 94 m | — | — | — |
| Finish - Thredbo | 50.5 | 0 m | 3.8 | 34 m | 604 m | — | Thu 09:15 PM | — |
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
Aid station contents not documented.
La feuille de ton assistance pour Kosciuszko - Kosci 50 · 2025
Les règles d'assistance de cette course ne sont pas encore connues : tu marqueras tes rendez-vous toi-même.
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
Kosciuszko - Kosci 50: 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 0h00 to 0h00. 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 | 0h00 | — | 419 g | 4.9 L | 3,492 mg | +7h16 |
| 550 | 6h24 | 0h00 | — | 384 g | 4.5 L | 3,200 mg | +7h51 |
| 600 | 5h39 | 0h00 | — | 339 g | 4 L | 2,825 mg | +8h36 |
| 650 | 5h09 | 0h00 | — | 309 g | 3.6 L | 2,575 mg | +9h06 |
| 700 | 4h51 | 0h00 | — | 291 g | 3.4 L | 2,425 mg | +9h24 |
| 750 | 4h33 | 0h00 | — | 273 g | 3.2 L | 2,275 mg | +9h42 |
| 800 | 4h13 | 0h00 | — | 253 g | 3 L | 2,108 mg | +10h02 |
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.
Other trails worth preparing for in France
- Ultra-Trail Kosciuszko - Kosci3034 km · 740 m D+ · November 26, 2026
- Ultra-Trail Kosciuszko - Kosci5051 km · 1,622 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
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 — Kosciuszko - Kosci 50
Weather for Kosciuszko - Kosci 50
The weather for Kosciuszko - Kosci 50 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 Kosciuszko - Kosci 50, hour by hour on the courseFrequently asked questions
How many checkpoints?
Kosciuszko - Kosci 50 has 7 checkpoints: 7 checkpoints with undocumented contents. Details are in the two tables above.
What distance and elevation gain?
Kosciuszko - Kosci 50 is 51 km long with 1801 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 5h39 for Kosciuszko - Kosci 50.
What's the weather forecast?
The weather for Kosciuszko - Kosci 50 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 Kosciuszko - Kosci 50?
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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