OTF 100 XXL 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 9 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.
Cut-off times and crew - OTF 100 XXL · 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 | VP1 Thierseekm 9.8 | VP2 Kala Almkm 16.4 | VP3 Buchackeralmkm 25.8 | VP4 Pineggkm 42.0 | VP5 Johann Passkm 53.9 | VP6 Ackernalmkm 59.3 | VP7 Bäckeralmkm 74.1 | VP8 Brünnsteinhauskm 86.4 | Finishkm 101.4 |
|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available |
| Brand products | available | available | available | available | available | available | available | available | available |
Elevation profile
The course and its aid stations
Other trails worth preparing for
- No Business 100 Official Course (Counterclockwise)161 km · 4,830 m D+ · October 23, 2026
- Firewater 100K97 km · 1,314 m D+ · October 24, 2026
- Island View 100154 km · 6,966 m D+ · October 24, 2026
- Lake Murray Endurance Run 100miler155 km · 1,629 m D+ · October 24, 2026
- Javelina Jundred161 km · 1,627 m D+ · October 24, 2026
- Pinhoti 100162 km · 3,750 m D+ · October 31, 2026
- Tunnel Hill 5081 km · 182 m D+ · November 7, 2026
- Tunnel Hill 100161 km · 355 m D+ · November 7, 2026
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
Sources and method
- Time projection — for lack of results on this race, times by UTMB Index rely on a Riegel law whose exponent is adjusted to elevation gain — the model's fallback, not its usual method. Peter Riegel (Wikipedia)
- 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 — OTF 100 XXL
Weather for OTF 100 XXL
The weather for OTF 100 XXL 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 OTF 100 XXL, hour by hour on the courseFrequently asked questions
How many checkpoints?
OTF 100 XXL has 9 checkpoints: 9 aid stations. Details are in the two tables above.
What's the longest segment without aid?
The one leading to VP4 Pinegg: 16.2 km and 518 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?
OTF 100 XXL is 101 km long with 5752 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 18h01 for OTF 100 XXL.
What's the weather forecast?
The weather for OTF 100 XXL 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 OTF 100 XXL?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
No card required · Instant results