Ultra trail des montagnes du Jura - UTMJ 2026
Your index is enough · arrival time and first checkpoints free
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 15 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.
Predicted race time based on your UTMB Index® · smoothed times achieved by runners at your level in past editions
At your index, you finish between 16h53 and 20h30 ahead of the finish cut-off.
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Cut-off times and crew - Ultra trail des montagnes du Jura - UTMJ · 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 | Menthièreskm 16.7 | Chezerykm 23.4 | Lelexkm 36.4 | Lajouxkm 51.9 | La Frassekm 62.1 | Les Rousseskm 73.7 | Morbierkm 93.1 | Bellefontainekm 99.9 | Chapelle des boiskm 108.7 | Chaux Neuvekm 120.7 | Mouthekm 128.5 | Granges Raguinkm 138.4 | Jougnekm 151.1 | Grange Neuvekm 163.4 | Jougne retourkm 174.0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | available | available | available | available | available | available | available | available | available | available | available | available | available | available | available |
| Brand products | available | unavailable | available | available | available | unavailable | available | available | available | available | available | available | unavailable | available | available |
| Hot meal | unavailable | unavailable | unavailable | unavailable | unavailable | available | unavailable | unavailable | unavailable | unavailable | unavailable | unavailable | available | unavailable | unavailable |
Elevation profile
The course and its aid stations
Ultra trail des montagnes du Jura - UTMJ: 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 37h35 to 21h20, and the aid-station stop budget from 0h00 to 0h00. 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 | 33h35 à 37h35 | 0h00 | 12.6 | 2,135 g | 24.9 L | 17,792 mg | +15h25 |
| 550 | 31h09 à 34h51 | 0h00 | 10 | 1,980 g | 23.1 L | 16,500 mg | +18h00 |
| 600 | 28h26 à 31h48 | 0h00 | 10 | 1,807 g | 21.1 L | 15,058 mg | +20h53 |
| 650 | 26h17 à 29h25 | 0h00 | 10 | 1,671 g | 19.5 L | 13,925 mg | +23h09 |
| 700 | 24h02 à 26h54 | 0h00 | 10 | 1,528 g | 17.8 L | 12,733 mg | +25h32 |
| 750 | 23h01 à 25h45 | 0h00 | 10 | 1,463 g | 17.1 L | 12,192 mg | +26h37 |
| 800 | 21h20 à 23h52 | 0h00 | 10 | 1,356 g | 15.8 L | 11,300 mg | +28h24 |
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
- ULTRA TRAIL TROUPES DE MARINE - 128KM131 km · 4,673 m D+ · November 21, 2026
- Lyon SaintéLyon160 km · 5,278 m D+ · November 28, 2026
- Les Herbiers - La HOT du Père Noël135 km · 3,109 m D+ · December 19, 2026
- Les Courses du Père Noël - La HOT - circuit delestage 120km117 km · 2,350 m D+ · December 19, 2026
- Ultra Trail des Vallees - UTDV 130 Km128 km · 3,022 m D+ · March 20, 2027
- Salomon EcoTrail Paris - Printemps - Trail 120km120 km · 1,618 m D+ · March 20, 2027
- Grand Trail des Cadourques - GTC124 km · 4,298 m D+ · April 2, 2027
- Grand Raid Ventoux - UGP - Ultra Géant de Provence126 km · 5,851 m D+ · April 23, 2027
- Trail de Haute Provence - THP160167 km · 7,387 m D+ · May 7, 2027
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 — Ultra trail des montagnes du Jura - UTMJ
Weather for Ultra trail des montagnes du Jura - UTMJ
The weather for Ultra trail des montagnes du Jura - UTMJ 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 Ultra trail des montagnes du Jura - UTMJ, hour by hour on the courseFrequently asked questions
How many checkpoints?
Ultra trail des montagnes du Jura - UTMJ has 16 checkpoints: 14 aid stations, 1 water point, and 1 checkpoint with undocumented contents. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Morbier: 19.4 km and 912 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?
Ultra trail des montagnes du Jura - UTMJ is 177 km long with 7656 m of elevation gain.
How long to finish?
With a UTMB index of 600 (average runner), one runner in two finishes Ultra trail des montagnes du Jura - UTMJ between 28h26 and 31h48.
What's the weather forecast?
The weather for Ultra trail des montagnes du Jura - UTMJ 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.