France
Dec
6-7
Sa - Su
Les 40 Bosses
The Les 40 Bosses will take place in Saint-Leu-la-Forêt from Saturday 6 December 2025 to Sunday 7 December 2025. You can run between 10 and 120 kilometers. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
120 km
120 Km – 5500m D+
75 km
75 Km – 3300m D+
45 km
45 Km – 2100m D+
20 km
20 Km – 900m D+
20 km
20 Km Nocturne – 900m D+
10 km
10 Km – 400m D+
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