La Diagonale des Fous - Grand Raid de La Réunion
About This Race
The legendary Diagonal of Madmen! One of the world's hardest ultra-trails crossing volcanic Réunion Island from coast to coast.
The Course
Extreme volcanic trail across Réunion Island through cirques, volcanic calderas, and tropical forests
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Race Details
Terrain
Trail
Elevation
Mountain
10000m (175K) gain
Participants
6,500 participants
Distances
Diagonale des Fous 175K, Trail de Bourbon 111K, Mascareignes 72K, Métis Trail 62K, Zembrocal Relais
What to Expect
An extreme adventure across an active volcanic island. Prepare for technical terrain, dramatic elevation changes, and otherworldly landscapes. Not for beginners.
Highlights
Race Information
Start Time
22:00
Typical Weather
Tropical, 15-30°C, humid, rain likely in mountains
Established
1993
Tags
Frequently Asked Questions
Quick Info
- October 15-18, 2026
- Saint-Denis · France
- Trail course
- Mountain elevation
- 6,500 participants
Verified event information
- Last verified 5 days ago
- Data sourced from official website