Kosciuszko - Kosci 100 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.
Cut-off times and crew - Kosciuszko - Kosci 100 · 2025
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| WP - South Perisher | 3.1 | 0 m | 3.1 | 90 m | 72 m | — | — | — |
| Charlotte Pass Resort | 16.3 | 0 m | 13.2 | 468 m | 447 m | — | Fri 12:10 PM | — |
| Rawsons Pass | 25.6 | 0 m | 9.3 | 430 m | 62 m | — | — | — |
| Base Camp 1 | 49.7 | 0 m | 24.1 | 759 m | 1,257 m | — | Fri 08:40 PM | — |
| Perisher Ski Tube | 62.0 | 0 m | 12.3 | 428 m | 330 m | — | Fri 11:00 PM | — |
| Bullocks Flat 2 | 74.5 | 0 m | 12.6 | 300 m | 900 m | — | Sat 03:05 AM | — |
| Ngarigo Campground | 82.1 | 0 m | 7.6 | 260 m | 158 m | — | Sat 05:15 AM | — |
| Friday Flat | 91.1 | 0 m | 9.0 | 330 m | 183 m | — | — | — |
| Village Green | 93.4 | 0 m | 2.3 | 52 m | 57 m | — | Sat 08:00 AM | — |
| Dead Horse Gap Trail Head | 98.0 | 0 m | 4.6 | 224 m | 46 m | — | — | — |
| Eagles Nest | 103.5 | 0 m | 5.5 | 480 m | 94 m | — | — | — |
| Finish - Thredbo | 107.3 | 0 m | 3.8 | 40 m | 609 m | — | Sat 12:00 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 100 · 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 100: 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 19h04 to 11h35, and the aid-station stop budget from 0h57 to 0h20. 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 | 19h04 | 0h57 | 5.6 | 1,144 g | 13.4 L | 9,537 mg | +9h26 |
| 550 | 17h21 | 0h47 | 3.9 | 1,041 g | 12.1 L | 8,677 mg | +11h09 |
| 600 | 15h46 | 0h38 | 2.3 | 946 g | 11 L | 7,881 mg | +12h44 |
| 650 | 14h27 | 0h32 | 1 | 867 g | 10.1 L | 7,228 mg | +14h03 |
| 700 | 13h27 | 0h27 | — | 807 g | 9.4 L | 6,723 mg | +15h03 |
| 750 | 12h26 | 0h23 | — | 746 g | 8.7 L | 6,219 mg | +16h04 |
| 800 | 11h35 | 0h20 | — | 695 g | 8.1 L | 5,790 mg | +16h55 |
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
- Marysville 100100 km · 3,364 m D+ · November 7, 2026
- Ultra-Trail Kosciuszko - Kosci100107 km · 3,461 m D+ · November 27, 2026
- Ultra-Trail Kosciuszko - KosciMiler163 km · 5,605 m D+ · November 27, 2026
- Ultra-Trail Australia - UTAMiler163 km · 7,166 m D+ · May 14, 2027
- Ultra-Trail Australia - UTA100101 km · 4,399 m D+ · May 15, 2027
- The Guzzler Ultra 100105 km · 3,983 m D+ · July 17, 2027
- Heysen 115113 km · 1,829 m D+ · October 24, 2026
- Bondi to Manly80 km · 1,414 m D+ · October 24, 2026
- Kosciuszko - Kosci Miler162 km · 6,578 m D+ · November 28, 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 100
Weather for Kosciuszko - Kosci 100
The weather for Kosciuszko - Kosci 100 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 100, hour by hour on the courseFrequently asked questions
How many checkpoints?
Kosciuszko - Kosci 100 has 12 checkpoints: 12 checkpoints with undocumented contents. Details are in the two tables above.
What distance and elevation gain?
Kosciuszko - Kosci 100 is 107 km long with 3861 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 15h46 for Kosciuszko - Kosci 100.
What's the weather forecast?
The weather for Kosciuszko - Kosci 100 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 100?
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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