Course
Key dates
- ★Race dayFri 30 Oct 2026
About
The Chartreuse Backyard Ultra is a unique running event where participants run a 6.7 km loop every hour until only one runner remains. It's an opportunity for runners to challenge themselves and push their limits, whether it's completing a half-marathon, a full marathon, 100 km, or even 100 miles in 24 hours. The event takes place in the beautiful Chartreuse region, offering a scenic and challenging course for the participants.
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Trail Des Petites Roches
35km loop climbs 2,100m through the Chartreuse massif
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Festitrail Dautrans
22k loop with 863m gain in the Vercors mountains
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Challenge 24hd
24km course gains 800m D+ around Lac de Laffrey
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.