Diagonale des Fous (Réunion, France) 2027
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Also known as: Grand Raid de La Réunion · GRAND RAID RÉUNION · Grand Raid Reunion
The Grand Raid's flagship race, crossing Réunion Island from Saint-Pierre in the south to Saint-Denis in the north, starting at night through UNESCO-listed peaks and cirques. The 2026 route skips Cilaos, going via Hell-Bourg in the Salazie cirque before climbing to Maïdo. Poles are banned.
The course tops out at 2,476 m (low point 0 m). There are 4 big climbs: 2,057 m around 0–47 km; 881 m around 55–68 km; 1,115 m around 85–94 km; 1,459 m around 111–122 km. About 30% of the distance is gentle (under 5% grade). In 2025, 76% of starters finished. The median finish was about 51 h, through 3 nights.
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How the prediction works
Enter your ITRA performance index to get your finish time, aid-station splits and cutoff margins from the results of 19 finishers of this race — the same model as the TRAIL STATUS app. Nothing is saved automatically or sent.
The app adds predictions from your training log (Strava), race-day pacing and more. Free, no sign-up.
Predict in detail from my Strava trainingOverview
- Date
- Thu, 14 Oct 2027
- Start
- 22:00
- Location
- Réunion (France)
- Distance
- 180.4 km
- Elevation gain
- 10,200 m
- Time limit
- 66h
- ITRA
- 100M · 6 points
- Official website
- www.grandraid-reunion.com
Elevation profile
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 14 km | CP1 Domaine Vidot | 14 km | Day 2 01:303h 30m |
| 2 | 33.4 km | Aid 2CP2 Notre-Dame de la Paix（スープ） | 19.4 km | Day 2 07:009h |
| 3 | 45.4 km | Aid 3CP3 Nez de Bœuf（スープ） | 12 km | Day 2 10:3012h 30m |
| 4 | 55.6 km | Aid 4CP4 Mare à Boue（温かい食事） | 10.2 km | Day 2 13:0015h |
| 5 | 65.1 km | Aid 5CP5 Coteau Kerveguen（水のみ） | 9.5 km | — |
| 6 | 76.4 km | Aid 6CP7 Gîte de Bélouve（水のみ） | 11.3 km | — |
| 7 | 80.6 km | Aid 7BV1 Hell-Bourg（ベースライフ・温かい食事・ドロップバッグ） | 4.2 km | Day 3 01:0027h |
| 8 | 93.8 km | Aid 8CP8 Plaine des Merles（スープ） | 13.2 km | Day 3 06:0032h |
| 9 | 96 km | Aid 9CP9 Départ Sentier Scout（関門のみ・エイドなし） | 2.2 km | Day 3 07:0033h |
| 10 | 107.8 km | Aid 10CP10 Grand Place les Bas（スープ） | 11.8 km | Day 3 11:3037h 30m |
| 11 | 116.4 km | CP11 Roche Plate | 8.6 km | Day 3 16:3042h 30m |
| 12 | 123.9 km | Aid 12CP12 Maïdo Tête Dure（スープ） | 7.5 km | Day 3 20:3046h 30m |
| 13 | 140.5 km | Aid 13BV2 Ilet Savannah（ベースライフ・温かい食事・ドロップバッグ） | 16.6 km | Day 4 00:1550h 15m |
| 14 | 147.9 km | Aid 14CP13 Chemin Ratinaud（Kalla） | 7.4 km | Day 4 03:0053h |
| 15 | 155.1 km | Aid 15CP14 La Possession（スープ） | 7.2 km | Day 4 06:3056h 30m |
| 16 | 164.5 km | Aid 16CP15 Grande Chaloupe（スープ） | 9.4 km | Day 4 09:0059h |
| 17 | 173.8 km | Aid 17CP16 Colorado（スープ） | 9.3 km | Day 4 13:3063h 30m |
| F | 180.4 km | FinishFINISH La Redoute（サン・ドニ） | 6.6 km | Day 4 16:0066h |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
2025 results
2,727 starters, 2,064 finishers (75.7% finish rate). Finish times of those who finished:
- Fastest
- 23h 32m
- Top 10%
- 38h 56m
- Top 25%
- 44h 41m
- Median
- 50h 59m
- Top 75%
- 59h 1m
- Top 90%
- 62h 21m
- Last finisher
- 65h 59m
"Top 25%" means one in four finishers had crossed the line by this time.
Years with a different course or different cutoffs are not directly comparable.
Other races
- Diagonale des Fous 180km (Réunion, France) 2026Thu, 15 Oct 2026 · Réunion (France) · 180.4 km
- Trail de Bourbon 106km (Réunion, France) 2026Fri, 16 Oct 2026 · Réunion (France) · 106.2 km
- Trail de Bourbon 106km (Réunion, France) 2027Fri, 15 Oct 2027 · Réunion (France) · 106.2 km
From your training log, TRAIL STATUS estimates your finish time, aid-station splits and cutoff margins for this race.
Predict my raceCompiled from each race's official information. Details can change, so always check the race's official website for the latest. Spotted a mistake? Please tell us through the contact form.
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Points to consider for this course
- The overall time limit allows about 21:57/km including stops. This average does not guarantee meeting intermediate cutoffs.
- The longest gap between recorded points, including the start, is about 19.4 km (14–33.4 km). This does not list every water source.
- Read the recorded profile alongside the cutoffs. Terrain, weather and your condition can change travel time.
These are simple calculations and observations from recorded information, not personal finish probabilities or difficulty ratings.
Other editions of the same race and distance
Recorded editions match by name, official domain, format and distance range. Results and courses across editions may not be directly comparable. Check the organizer for the latest schedule.
- Diagonale des Fous 180km (Réunion, France) 2026 · 2026-10-15Compared recorded values match.
Results and official information
Historical field finish rates differ from your personal prediction. This is not a live results service; check official announcements for results and changes.
Check rules and results on the official siteInformation checked: 2026-10-02