Trail race calendar in Brittany 2026
Also known as Gulf of Morbihan
France's Atlantic peninsula: granite, salt marshes, beech forests and a coastline you run with the tide. Here trail running is not measured in vertical gain but in kilometres of coast, and the Ultra Marin gathers 10,000 runners around the Gulf of Morbihan.
Calendar updated October 2026
Photo: Jebulon / Wikimedia Commons (CC0) / Unsplash(opens in a new tab)For cold and dark miles
Headlamp, thermal layer and a good watch: what matters when daylight runs short.
#1 · Best OverallPetzl Iko CoreView on Amazon →(opens in a new tab)
#2 · Best Rain JacketGore Wear R7 GTX ShakedryView on Amazon →(opens in a new tab)
#3 · Best OverallCoros Pace 3View on Amazon →(opens in a new tab)
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Upcoming races: 2026 calendar
3 upcoming races
No races match these filters.
For your vertical km
Poles, grippy shoes and a light vest for a 1,000 m climb.
#1 · Best OverallBlack Diamond Distance Carbon ZView on Amazon →(opens in a new tab)
#2 · Best OverallSalomon Sense Ride 5View on Amazon →(opens in a new tab)
#3 · Best OverallSalomon ADV Skin 12 SetView on Amazon →(opens in a new tab)
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For a short race
Shoes, socks and sun protection: just what you need to run fast.
- #1 · Best OverallSalomon Sense Ride 5View on Amazon →(opens in a new tab)
#2 · Best OverallCompressport Pro Racing Socks V3.0 TrailView on Amazon →(opens in a new tab)
#3 · Best OverallISDIN Fusion Water Sunscreen SPF 50+View on Amazon →(opens in a new tab)
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For a mid-distance race
Shoes, vest and hydration for 21-42 km without suffering.
- #1 · Best OverallSalomon Sense Ride 5View on Amazon →(opens in a new tab)
- #2 · Best OverallSalomon ADV Skin 12 SetView on Amazon →(opens in a new tab)
#3 · Best Gel OverallMaurten Gel 100View on Amazon →(opens in a new tab)
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For a long race
Vest, headlamp and nutrition for all those hours in the mountains.
- #1 · Best OverallSalomon ADV Skin 12 SetView on Amazon →(opens in a new tab)
- #2 · Best OverallPetzl Iko CoreView on Amazon →(opens in a new tab)
- #3 · Best Gel OverallMaurten Gel 100View on Amazon →(opens in a new tab)
Some links are affiliate links. If you buy through them, we earn a commission at no extra cost to you.
For your ultra
A watch with battery to spare, a powerful headlamp and poles: the gear that can't fail.
- #1 · Best OverallCoros Pace 3View on Amazon →(opens in a new tab)
- #2 · Best OverallPetzl Iko CoreView on Amazon →(opens in a new tab)
- #3 · Best OverallBlack Diamond Distance Carbon ZView on Amazon →(opens in a new tab)
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Who would you run them with? Send them this list.
Share this view(opens in a new tab)September2027
2
Trail de la Côte d'Émeraude
Saint-Malo · Brittany
54 · 32 kmIntermediate
Grand Raid du Finistère
Telgruc-sur-Mer · Brittany
166 · 92 · 56 kmAdvanced
Recommended gear · Best Overall
Coros Pace 3View on Amazon →(opens in a new tab)Compare with other options →Essential gear for trails in this area
Most-bought gear for running in jun.
Black Diamond
Black Diamond Distance Carbon Z
Ultralight carbon Z-pole foldable trekking poles. 137 g per pole in 110 cm length, 33 cm folded. EVA grip and adjustable strap. The trail running reference.
Hoka
Hoka Speedgoat 7
The best-selling trail shoe in the US and an absolute ultra-trail classic. Max Hoka cushioning, a Vibram Megagrip outsole with 5 mm lugs for grip in mud and technical terrain, and a snug Matryx upper. Built to eat up kilometres without punishing your legs in long races.
Icebreaker
Icebreaker Merino 200 Oasis LS Crewe
Long-sleeve thermal top in 100% merino wool (200g). Natural temperature regulation, genuine multi-day odor resistance and a soft, non-itch handfeel from the fine merino yarn.
ISDIN
ISDIN Fusion Water Sunscreen SPF 50+
Ultralight water-phase facial sunscreen with SPF 50+. Fluid texture that absorbs instantly with no greasy residue, ideal for applying during a race. Water and sweat resistant.
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Gear up for the mountains
The right gear makes the difference on race day. Our comparison guides to choose well.
Swipe to see all 4 categories
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Races by area
Races in Finistere
Races in Ille Et Vilaine
Races in Morbihan
Race map
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About the region Brittany
“Trail running with the tide”
Key facts about the region
175 km
Coastal ultra around the gulf
10.000
Runners at the event
GR 34
Customs Officers' Path
3
Races
18 – 175 km
Distance range
300 – 3,700 D+
Elevation range
Jun – Sep
Race months
Difficulty
Terrain
Brittany is an old, eroded granite massif: gentle hills, no high mountains, but a deeply indented coastline with dozens of islands, headlands and salt marshes. Trails mix sand, rock and dirt, with short, constant climbs. The GR 34 runs the whole Breton coast and is the region's technical reference. The tide dictates the route: some sections only pass at low coefficient.
Key areas
Climate & best season
Pure oceanic climate: mild all year, with frequent rain and wind. The ideal window runs from May to October, when daylight lasts late and the trail is drier. Winter means mud, short days and Atlantic storms.
Trail culture
Brittany has a distinct identity: the Breton language, lighthouses and beacons, crêpes and cider, fest-noz dances and a seafaring culture visible in every village around the gulf. Runners come for open coast and find a deeply humanised landscape of customs paths, oysters and small harbours. It is the natural destination for Spanish runners looking for an ultra without altitude.
Iconic races in the region