Diagonale des Fous
Diagonale des Fous crosses Réunion from Saint-Pierre to Saint-Denis over 175 kilometers and 10,500 meters of climbing through volcanic terrain.
Quick facts
- The listed flagship route is 175K with approximately 10,500 meters of ascent.
- Entry requires two qualifying trail finishes and uses lotteries or travel packages for many places.
- The 2026 Grand Raid weekend runs October 15-18 across five race formats.
About the Diagonale des Fous
The Grand Raid's flagship is one of trail running's major global tests, supported by an island-wide crowd and a field of roughly 3,000 runners.
Course
The point-to-point crossing links volcanic highlands, the island's cirques, steep stair-like trail, muddy forest, and remote settlements before Saint-Denis.
Race-day weather
Tropical lowlands, wet cloud forest, cold high ground, and exposed sun can all occur in one race. Rain often makes the technical descents much slower.
Past Diagonale des Fous dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Thursday, October 15, 2026 | Upcoming | — |
Diagonale des Fous FAQ
When is the Diagonale des Fous?
The 2026 Diagonale des Fous is on Thursday, October 15, 2026.
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