Race planning
Plan Diagonale des Fous
Use the listed edition as your starting point. Each tool keeps imported race facts separate from the targets and assumptions you choose.
This is a past edition. These details are for reference; confirm a future edition before making a plan.
Edition notes: The 2026 route bypassed Cilaos. The organizer's route description leaves the Cilaos trail at the Croisée Kerveguen (km 67.6) and descends via Bélouve to Hell-Bourg, the first base camp (km 80.6), then crosses Mafate to the Maïdo and the second base at Ilet Savannah (km 140.5) before finishing at La Redoute (180.8 km). This is the archived 2026 route description. Trail access and future race routes require a fresh check of the organizer’s and forestry office’s notices. Reconnaissance between Bassin Plat and Piton Sec is prohibited because it crosses private land.
- Listed edition
- Oct 15, 2026 – Oct 18, 2026
- Format
- Fixed-Distance
- Distance
- Approximately 180 km
- Local start time
- 10:00 PM Thursday
- Duration / cutoff
- 66 hours
- Crew and pacers
- Check the current race rules
- Drop bags
- Check the current race rules
Recorded facts reviewed Oct 12, 2026. Check the organizer’s latest rules. Calendar downloads use all-day dates and do not set a starting alarm.
Pace & duration
Start with the recorded course distance. The recorded duration or cutoff is filled in; adjust it to your goal.
Gear checklist
Choose a checklist suited to your expected duration. Add the organizer’s mandatory gear.
Crew & drop bags
Bring across the race name and local start time. Add confirmed access points, distances and your own arrival estimates.