The Grand Roseau returns with renewed vigor for its fourth edition on Saturday, July 18, 2026, to support the fight against Multiple Sclerosis. Organized by Oasis, this race offers two timed courses – a 7km and a 15km run – along with a 7km walk. Participants will enjoy scenic routes through picturesque landscapes, providing an unforgettable experience. The event kicks off at 15:20 with children's races for the younger crowd. The 750m course caters to primary school students born in 2015 and 2016 (ages 10-11), while a longer 1,500m route is designed for middle school students from sixth to third grade, who were born between 2011 and 2014 (ages 12-15). These races are followed by an enthusiastic warm-up at 16:50. At 17:00, the main event begins with a 7km timed race for cadets aged 16 to 17. This is swiftly followed by the longer 15km course, also reserved for those in the same age group. For a more relaxed pace, there's a 7km walk starting at 17:30. After the races and walks conclude around 19:00, revel in live entertainment with a free concert featuring Amandine Tissier, former professional handball player. The event promises to be an evening of fun and support for those battling Multiple Sclerosis. Refreshments will abound after your efforts – enjoy savory galette saucisses or sweet crêpes sucrées at our on-site stands. Payment methods include both card and cash. Don’t forget, depending on the terrain, trail shoes might enhance your experience. This edition of The Grand Roseau is not just a race but an opportunity to contribute to a noble cause while enjoying beautiful surroundings and community spirit.
Races Offered
Achat tee-shirt collector ✨
Jul 18, 2026
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Distance —
0 km
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Running
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14 days remaining
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€0.00
Course chronométrée 15km
Jul 18, 2026
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Distance —
15 km
terrain
Type —
Running
timer
14 days remaining
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€15.20
Course chronométrée 7km
Jul 18, 2026
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Distance —
7 km
terrain
Type —
Running
timer
14 days remaining
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€15.20
Marche 7 km
Jul 18, 2026
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Distance —
7 km
terrain
Type —
Running
timer
14 days remaining
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€15.20
Petit Roseau 1500m
Jul 18, 2026
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Distance —
15 km
terrain
Type —
Running
timer
14 days remaining
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€2.00
Petit Roseau 750m
Jul 18, 2026
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Distance —
075 km
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Type —
Running
timer
14 days remaining
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€2.00
Weather History
These values represent the 3-year monthly averages for July in Plougastel daoulas.
thermostatTemperature
14.5° / 20.1°
wb_sunnyFeels like
12.9° / 18.2°
light_mode
Avg sunshine hours
9h 58m
water_drop
Avg rainfall
3.2 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
15.4 km/h (Gentle breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.6)
humidity_mid
Humidity
80.8%
wb_twilight
Sunrise
06:33
nightlight
Sunset
22:11
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