The MB Ultra Somfy is the flagship race of the event! Much more than a race, it’s above all a challenge against oneself… The grail for every participant taking part in the race is to become Finisher of the 140 km, the queen distance! And of the 1,500 participants taking part, only a few will succeed…
The course is divided into 3 distances: 70 km & 3500m D+| 100 km & 5000m D+ | 140 km & 7000m D+. After a joint start, riders can decide in due course whether to stop or continue to the final distance, joining the coveted Finisher’s Circle of the world’s toughest mountain bike race.
July 5, 2025
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All runners must reach their starting area by 5.50 a.m., i.e. 10 minutes before the first start. Access to the airlocks will be from the rear. An explanatory email will be sent to participants.
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6h00 : Megève
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70 km: Megève
100 km: Combloux
140 km : Megève
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85€ + administration fee Number of places limited to 1000 runners
To come
To help you prepare, we’ve compiled the times at various points along the route of the 140 km finishers in 2023, as well as the mileages and time barriers for 2024.
Please note that time barriers are calculated for a 6am departure. They will be staggered according to the departure of the last wave.
Km course 2023 | Km course 2024 | Location 2023 | Location 2024 | First pass of participants 140 km finisher in 2023 | Last passage of participants 140 km finisher in 2023 | Time barrier 2023 | Time barrier 2024 |
|---|---|---|---|---|---|---|---|
11,6 | 11,6 | Sous Col du Jaillet | Sous Col du Jaillet | 6:41am | 7:04am | ||
24,6 | 24,6 | La Giettaz | La Giettaz | 7:24am | 8:24am | ||
44 | 44 | Praz sur Arly | Praz sur Arly | 8:28am | 10:06am | ||
52,4 | 52,4 | Chevan | Chevan | 9:03am | 11:15am | ||
60,3 | 60,3 | Col de Very | Col de Very | 9:35am | 12:07pm | ||
71,9 | 71,9 | Megève | Megève | 10:01am | 12:49pm | 2pm | 2pm |
84 | 84 | Plateau de la Croix | Plateau de la Croix | 10:40am | 1:53pm | ||
92,9 | 92,9 | Avenaz du Mt D’Arbois | Avenaz du Mt D’Arbois | 11:18am | 2:56pm | ||
105,3 | 105,3 | Combloux | Combloux | 11:54am | 4:04pm | ||
123,3 | 115,3 | Col du Jaillet | Col du Jaillet | 1:27pm | 6:30pm | 6:30pm | 6:00 pm |
130,8 | 122,8 | Mouille Rose | Mouille Rose | 2:01pm | 8:30pm | ||
138,5 | 132 | Les Frasses | Parking Ball Trapp | 2:33pm | 8:30pm | 8:30pm | 8:00pm |
147,38 | 141,75 | Megève | Megève | 2:57pm | 9:36pm |
Anyone wishing to take part in the MB Ultra Somfy race must have read the regulations carefully. By entering this race, each competitor certifies that he/she has read the regulations and agrees to abide by them.
All non-licensed participants must provide the organizers with a medical certificate stating that they have no medical contraindications to competitive mountain biking.
This year, we are entrusting the management of supporting documents to Dokeop. Click below to find out about the filing procedure and the requirements for supporting documents.
All licensed participants must show their 2024 license to the organizers. It is imperative that the license is valid on race day and bears the words “validated medical certificate” and “cycling”, particularly for FSGT or UFOLEP licenses.
This year, we are entrusting the management of supporting documents to Dokeop. Click below to find out about the filing procedure and the requirements for supporting documents.
The MB Ultra Somfy is open to all, non-licensed, FFC/UCI licensed, FSGT, FFTRI, UFOLEP. Categories are as follows:
ESPOIRS (M & W)I 19 to 22 years
SENIORS (M & W) I 23 to 29 years
MASTER I (M & W) I 30 to 39 years
MASTER II (M & W) I 40 to 49 years
MASTER III (M & W) I 50 years and older
TANDEMS I 19 years and older
ELITES UCI Women I 19 years and older
ELITES UCI Men I 19 years and older
Age at 12/31/2024
For safety reasons, all runners taking part in the MB Ultra Somfy must carry the following with them throughout the course:
A lighting kit is recommended for participants taking part in the 140 km race.
Come to discover the 2024 Somfy MB Ultra route to prepare for your MB Race !
We propose to accompany you step by step in your preparation by tackling different themes which will play key roles in the achievement of your objectives. Training plan, physical and mental preparation, nutrition, recovery, effort management, equipment and much more will be part of the MB Camp program.
MB CAMP – Date to come
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