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Grand Raid de La Réunion - La Mascareignes

October 15, 2026

Saint-Pierre (départ Diagonale des Fous) / Stade de la Redoute, Saint-Denis (arrivée) · Saint-Pierre, France

About

The Grand Raid of Réunion, also known as La Diagonale des Fous, is a historic ultra-trail race held every October on the island of Réunion in the Indian Ocean. Known for its extreme difficulty, the event features dizzying distances, impressive elevation gains, and ultra-technical trails through jungle, volcanoes, and mountain terrain. Five trail categories are offered, ranging from 51km to 180km.

Step 2

Pick your distance

Everything below adapts to your choice

Start

Saint-Pierre (départ Diagonale des Fous) / Stade de la Redoute, Saint-Denis (arrivée)

Entry fee

260 €

Weather

Sunny 24°C

How about we do this one together?

A preview of your plan. The real one lives in the Imperfect app.

Our first event

Grand Raid de La Réunion - La Mascareignes

Oct 15Saint-Pierre180 km (112 mi)
Predicted finishOn pace
26:13:35h
62% ready

Your readiness

Training plan22wks
LevelMid
Sleep score82/100

Top finishers

2025
  • 1B.🇫🇷23:31:54
  • 2Y.🇫🇷24:27:33
  • 3A.🇫🇷25:13:35
Visit the official site

Why this race

  • Diagonale des Fous is one of the most iconic ultra-trails globally
  • Long-established (since 1989), independent of UTMB licensing
  • Massive international field, legendary status in trail community

If you like UTMB Mont-Blanc or Western States 100, you'll like this one.

Pack this

  • Headlamp + spare batteries (mandatory, night sections likely)
  • Waterproof jacket with taped seams + warm long-sleeve layer
  • Reusable soft cup 150ml+ (no cups at aid stations)
  • 2x 500ml soft flasks + electrolyte tabs and salt caps
  • Trail shoes with aggressive lugs + anti-chafe cream

What you should know

  • Mandatory gear checks are enforced at start and on course; missing items means disqualification.
  • Course climbs from coastal heat to over 2000m; expect 25°C lows near 5°C with possible rain or fog up high.
  • 74km with 3800m D+ on volcanic, rocky, root-filled singletrack; technical descents punish quads hard.
  • Strict intermediate cutoffs along the route; know your barrier times or you will be pulled.
  • Bib pickup requires medical certificate (or French licence) and ID; no race-morning collection.
Based on 2 sources

The information shown here is based on the most recent listing we could find, and may change. Always confirm details on the event's official site before registering.

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