Rureifel Trail - RET77 2027
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 - Rureifel Trail - RET77 · 2027
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 78.4 | 3,191 m | 78.4 | 3,191 m | 3,191 m | — | Sat 10:10 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 Rureifel Trail - RET77 · 2027
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
Rureifel Trail - RET77: 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 12h50 to 7h47, and the aid-station stop budget from 0h43 to 0h15. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
Below a UTMB® Index of roughly 425, the overall cut-off of 14h30 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 12h50 | 0h43 | — | 770 g | 9 L | 6,416 mg | +1h40 |
| 550 | 11h41 | 0h35 | — | 701 g | 8.2 L | 5,839 mg | +2h49 |
| 600 | 10h37 | 0h29 | — | 637 g | 7.4 L | 5,309 mg | +3h53 |
| 650 | 9h43 | 0h24 | — | 583 g | 6.8 L | 4,860 mg | +4h47 |
| 700 | 9h01 | 0h20 | — | 541 g | 6.3 L | 4,505 mg | +5h29 |
| 750 | 8h19 | 0h17 | — | 499 g | 5.8 L | 4,156 mg | +6h11 |
| 800 | 7h47 | 0h15 | — | 467 g | 5.4 L | 3,888 mg | +6h43 |
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.
In the 2027 ranking
Rureifel Trail - RET77 is 78 km and 3,191 m of elevation gain, that's 110 km-effort: category M, among 124 races in 2027. Its time limit of 14 h 30 requires a minimum speed of 5.4 km/h: rank 95 out of 112 of the widest cut-off times in M.
M trails 2027: 75 to 114 km-effort
Similar effort in 2027
- Gauja Trail by UTMB - Gauja Trail 100 K · 110 km-effort
- Firewater 100K · 110 km-effort
- Les Courses du Mont-Terrible - Trail de Calabri · 109 km-effort
Other trails worth preparing for
- Javelina 100k97 km · 1,053 m D+ · October 31, 2026
- Coldwater 50k52 km · 1,293 m D+ · November 1, 2026
- Tunnel Hill 5081 km · 182 m D+ · November 7, 2026
- Mountain Masochist 100k101 km · 3,268 m D+ · November 7, 2026
- Mountain Masochist 5081 km · 2,311 m D+ · November 7, 2026
- Lake Chabot 50K49 km · 1,896 m D+ · November 7, 2026
- Mt. Tam 50k48 km · 2,005 m D+ · November 7, 2026
- Deception Pass 50k50 km · 1,394 m D+ · November 7, 2026
- Red Rock Canyon 50k49 km · 988 m D+ · November 14, 2026
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 — Rureifel Trail - RET77
Weather for Rureifel Trail - RET77
The weather for Rureifel Trail - RET77 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 Rureifel Trail - RET77, hour by hour on the courseFrequently asked questions
How many checkpoints?
Rureifel Trail - RET77 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?
Rureifel Trail - RET77 is 78 km long with 3191 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 10h37 for Rureifel Trail - RET77.
What's the weather forecast?
The weather for Rureifel Trail - RET77 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 Rureifel Trail - RET77?
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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