Lamastre Trail & Rando - Lamas trail 21 km 2026
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 - Lamastre Trail & Rando - Lamas trail 21 km · 2026
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 20.7 | 950 m | 20.7 | 950 m | 948 m | — | Sat 03:23 AM |
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.
Elevation profile
The course and its aid stations
Other trails worth preparing for
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- Sainte-Ruffine - 19km19 km · 530 m D+ · October 18, 2026
- Corte - U PERIPLU DI CORTI Solo21 km · 1,931 m D+ · October 18, 2026
- Pierre Buffière - La Delta Industrie24 km · 783 m D+ · October 18, 2026
- Falicon - Trail de la Grande Ratapignata - Solo20 km · 1,275 m D+ · October 18, 2026
- Reichshoffen - Trail des Chaudronniers16 km · 168 m D+ · October 18, 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 — Lamastre Trail & Rando - Lamas trail 21 km
Weather for Lamastre Trail & Rando - Lamas trail 21 km
The weather for Lamastre Trail & Rando - Lamas trail 21 km 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 Lamastre Trail & Rando - Lamas trail 21 km, hour by hour on the courseFrequently asked questions
How many checkpoints?
Lamastre Trail & Rando - Lamas trail 21 km has 1 checkpoint: 1 checkpoint with undocumented contents. Details are in the two tables above.
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?
Lamastre Trail & Rando - Lamas trail 21 km is 21 km long with 950 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 2h14 for Lamastre Trail & Rando - Lamas trail 21 km.
What's the weather forecast?
The weather for Lamastre Trail & Rando - Lamas trail 21 km 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 Lamastre Trail & Rando - Lamas trail 21 km?
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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