DateExpected
Late April 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Stade du Prat Eles, Belle-Isle-en-Terre
Belle-Isle-en-Terre, Côtes-d'Armor
Countdown
April
The longest of the three trail runs at Belle-Isle-en-Terre: a 25 km single loop in Brittany, with no licence needed and a field of around 150 for a proper morning out.
Key facts
01Runners must be 18 or over
02No licence required, just enter and run
03Ranked by sex
Create a free training plan for the Un Souffle pour la Muco 25 km
7-day free trial, no card required
The course
The route
Belle-Isle-en-Terre
Distance25km
StartElevation
0 kmDrag map to rotate25.0 km
Weather
Late-April, Belle-Isle-en-Terre
14°CTypical high
7°CTypical low
1°CColdest in 20 years
38%Days with rain
Highs around 14°C and lows around 7°C, but it has dropped to 1°C. Rain on 38% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Un Souffle pour la Muco 25 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Un Souffle pour la Muco 25 km plan targets
Typical sessions
25 km
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Un Souffle pour la Muco 25 km plan.
7-day free trial, no card required.
Other races at Un Souffle pour la Muco
More events in April in France
La Corima Drôme ProvençaleSat, 3 Apr 2027 · Montélimar→Sentiers des VignesExpected Early April 2027 · Saint-Julien-de-Concelles→Trail de l'Aber Wrac'hSat, 3 Apr 2027 · Le Folgoët→Trail des Collines NormandesSat, 3 Apr 2027 · Condé-en-Normandie→Le Grand Défi des VosgesSun, 4 Apr 2027 · Niederbronn-les-Bains→Les Délices de l'UrsuiaExpected Early April 2027 · Hasparren→
