Sparnatrail - 12km 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 - Sparnatrail - 12km · 2026
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 12.0 | 238 m | 12.0 | 238 m | 352 m | — | Sun 11:40 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
Sparnatrail - 12km: 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 1h15 to 0h54, and the aid-station stop budget from 0h02 to 0h01. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Below a UTMB® Index of roughly 380, the overall cut-off of 1h40 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 1h15 | 0h02 | — | 75 g | 0.9 L | 629 mg | +0h25 |
| 550 | 1h10 | 0h01 | — | 70 g | 0.8 L | 584 mg | +0h30 |
| 600 | 1h06 | 0h01 | — | 66 g | 0.8 L | 551 mg | +0h34 |
| 650 | 1h03 | 0h01 | — | 63 g | 0.7 L | 522 mg | +0h37 |
| 700 | 1h00 | 0h01 | — | 60 g | 0.7 L | 497 mg | +0h40 |
| 750 | 0h57 | 0h01 | — | 57 g | 0.7 L | 472 mg | +0h43 |
| 800 | 0h54 | 0h01 | — | 54 g | 0.6 L | 449 mg | +0h46 |
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.
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Sources and method
- Time projection — les temps par cote sont repris des passages réels des coureurs de chaque tranche sur les éditions précédentes de cette course, arrêts aux ravitaillements compris. Aucune formule n'intervient tant que ces résultats existent.
- 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 — Sparnatrail - 12km
Weather for Sparnatrail - 12km
The weather for Sparnatrail - 12km 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 Sparnatrail - 12km, hour by hour on the courseFrequently asked questions
How many checkpoints?
Sparnatrail - 12km 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?
Sparnatrail - 12km is 12 km long with 238 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 1h06 for Sparnatrail - 12km.
What's the weather forecast?
The weather for Sparnatrail - 12km 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 Sparnatrail - 12km?
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