Photo: Wikimedia Commons (CC BY-SA 2.5) / Source (opens in a new tab)Saint-Leu-la-Forêt
Les 40 Bosses
Saturday, 5 December 2026
Le Monstre 120K
120km D+ 5500m
La Belle 75K
75km D+ 3300m
L'Historique 45K
45km D+ 2100m
La Classique 20K
20km D+ 900m
Le Sprint 10K
10km D+ 400m
When is Les 40 Bosses 2026?
Saturday, 5 December 2026
Race date
Saturday, 5 December 2026
Saint-Leu-la-Forêt
67
67 days until the race
Add to calendar
Add race dateExpected weather
2° – 7°
raceDate.weather.temperature
💧
50%
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💨
19 km/h
raceDate.weather.wind
☀️
3h
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Race summary
Distance
120K
Elevation Gain
5,500m D+
Terrain
Trail
Difficulty
Advanced
Distances
| Le Monstre 120K | 120K | 5,500m D+ | – |
| La Belle 75K | 75K | 3,300m D+ | – |
| L'Historique 45K | 45K | 2,100m D+ | – |
| La Classique 20K | 20K | 900m D+ | – |
| Le Sprint 10K | 10K | 400m D+ | – |
Other races in December 2026
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Trail de Noël d'Ollioules
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Up to 33 km and 2,250 m D+ on 13 December 2026: the Var's Christmas trail, with a pairs format.
Trail du Cap Sicié
Six-Fours-les-Plages
27 km and 1,000 m D+ above Mediterranean cliffs on 6 December 2026: a winter trail next to Toulon.
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