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Des Marais & Des Bosses by Cocerto

France flag
St herblain, Pays de la Loire, France

calendar_today 22 Nov, 2026

directions_run Running

language Official Website

sell €7.80 – €82.50

Register Now
Des Marais & Des Bosses by Cocerto

About the Event

Relay Solitude Challenge: Experience the beauty of nature through team spirit and endurance. The race takes place on a scenic course with multiple loops, offering runners from 14 years old upwards an exhilarating experience.
The main relay competition starts at 8 AM, featuring four-person teams covering a total distance of 42 kilometers split into segments: 10.5 km for the first runner, 31.5 km for the second, 21 km for the third, and a final leg of 10.5 km by the fourth member. Participants must start their last lap before noon to meet the time limit.
For those with less time or fewer team members, there are two additional relay options: a half-relay starting at 9 AM for pairs covering 21 + 10.5 kilometers and a shorter individual run of approximately 5 km beginning at 11 AM that accommodates up to 200 participants.
A special event is reserved for younger athletes aged 10-13, with the "Bossinette" race starting at 11:45 AM over about 1.5 kilometers and welcoming up to 100 competitors free of charge.
Early bird registration fees are available until September 14th at €80 per team for the full relay and €30 for the half-relay, with a slight increase after November 15th. On-the-day registrations will be priced higher: €88 for the full relay and €34 for the half-relay.
Participants should plan their arrival as online registration is required; no on-site sign-ups are permitted. Mark your calendars and join us to celebrate endurance, camaraderie, and the breathtaking landscapes of Solitude!

Races Offered

Des Bossinettes

Nov 22, 2026

straighten

Distance — 15 km

terrain

Type — Running

timer

50 days remaining

sell

€0.00

La DMDB - Equipe de 2

Nov 22, 2026

straighten

Distance — 21 km

terrain

Type — Running

timer

50 days remaining

sell

€31.70

La DMDB - Equipe de 4

Nov 22, 2026

straighten

Distance — 42 km

terrain

Type — Running

timer

50 days remaining

sell

€82.50

Le Souffle Solidaire

Nov 22, 2026

straighten

Distance — 5 km

terrain

Type — Running

timer

50 days remaining

sell

€7.80

Weather History

These values represent the 3-year monthly averages for November in St herblain.

thermostat Temperature
7.9° / 13.5°
wb_sunny Feels like
4.6° / 10.5°
light_mode Avg sunshine hours
5h 16m
water_drop Avg rainfall
3.5 mm
ac_unit Avg snowfall
—
air Avg wind speed
14.5 km/h (Gentle breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Low (1.4)
humidity_mid Humidity
86.1%
wb_twilight Sunrise
09:10
nightlight Sunset
18:31

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