Running
Jurassienne
300 km
Ultra Trail des Montagnes du Jura
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Trail in France, Jura mountains
Distances
Running
UTMJ
175 km
Running
UTMJ Relais
175 km
Running
Franco-Suisse
105 km
Running
Renarde
75 km
Running
CMM
40 km
Running
Lynx
20 km
Running
13000M D+ CULOZ RELAY
13 km
Running
10 km
10 km
Running
Chamois
10 km
Running
7000M D+ LANCRANS
7 km
Running
7000M D+ LANCRANS RELAY
7 km
Running
4000M D+ LES ROUSSES
4 km
Running
2600M D+ LES ROUSSES
2.6 km
Running
1100M D+ CHAPELLE DES BOIS
1.1 km
Running
800M D+ MOUTHE
0.8 km
Running
500M À 5KM MÉTABIEF
0.5 km
Running
400M D+ GRANGES RAGUIN
0.4 km
About
A festival of ultra-trail running in the Jura mountains offering multiple relay and solo distance options from 10 km up to 175 km, with mountain scenery, high-altitude passes and village support.
Catering & aid stations
On-course aid stations offer coffee, tea, St-Yorre, Cristaline, Jura Cola, broth, oranges, bananas, dried raisins, dried apricots, peanuts, cereal bars, chocolate, sugar, bread, gingerbread, crackers, dry sausage, Comté and Morbier cheese. Hot meals at base camps: Les Rousses (hot ham – mashed potato); Jougne (rice, bolognaise, pea soup).
Pacers
A PACER option is available for the UTMJ (book when registering as the main runner). Relay events feature staggered start waves and designated pacers per wave; refer to event-specific schedules on the website for target times and pacers.
Results
View official resultsTypical weather in Jura mountains
Monthly averages based on historical data (2000–present).
Jan3°-3°
↑ 08:17
↓ 17:15
Feb5°-2°
↑ 07:42
↓ 18:01
Mar9°1°
↑ 06:50
↓ 18:43
Apr12°4°
↑ 06:50
↓ 20:24
May16°8°
↑ 06:03
↓ 21:04
Jun20°12°
↑ 05:44
↓ 21:32
Jul22°13°
↑ 05:59
↓ 21:27
Aug22°13°
↑ 06:36
↓ 20:48
Sep18°10°
↑ 07:15
↓ 19:50
Oct14°7°
↑ 07:55
↓ 18:51
Nov8°2°
↑ 07:39
↓ 17:05
Dec5°-1°
↑ 08:14
↓ 16:51
What's included in entry
- Race kit
- Race kit
- Race kit
FAQ
When are the races held in 2026?
Chamois (10 km): 3 October 2026, 11:00 AM; CMM (40 km): 4 October 2026, 8:00 AM; Franço-Suisse (105 km): 3 October 2026, 5:00 AM; Jurassienne (300 km relay): 1 October 2026, 8:00 PM; Lynx (20 km): 4 October 2026, 10:00 AM; Renarde (75 km): 3 October 2026, 8:30 AM; UTMJ (175 km): 2 October 2026, 12:00 PM; UTMJ Relais (175 km): TBA
Where can I collect my race bib?
Collection points vary by event: typically at the finish venue or the Saturday/Sunday start location. Specific times and sites are listed on each event page and in the registration confirmation.
What kit is mandatory?
Mandatory kit includes a brand-new emergency survival blanket, a fully charged and switched-on mobile phone, and an individual reusable cup. Recommended items include thermal layers, gloves, hat, spare clothes, first aid kit, and poles where permitted.
Are there aid stations on all courses?
Most events have multiple aid stations offering coffee, tea, isotonic drinks, broth, fruits, snacks, and cheese. The Jurassienne (300 km relay) is self-sufficient with no aid stations; the Chamois (10 km) has no aid stations.
Can I register as a relay team or a solo runner?
Yes: relay options vary by distance (e.g., UTMJ and Jurassienne accept teams; Chamois, Lynx, Renarde, CMM are solo-only). Select the appropriate race when registering.
Do I need a pacer?
A PACER option is available for the UTMJ (book when registering as the main runner). Relay events include staggered pacers per wave; see the event pages for schedules.
Last updated: Jun 6, 2026, 12:16:59 AM
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