Events/Grand Raid Réunion (Diagonale des Fous)

Grand Raid Réunion (Diagonale des Fous)

Running

Date

Thu, 21 Oct 2027

Venue

Saint-Pierre → Saint-Denis, Réunion Island

Countdown

October

Distance

165km

Total climb

10,000m

Around 165km straight across Réunion, with roughly 10,000m of climbing and the same again in descent. A diagonal crossing of a volcanic island, from the south coast to the stadium finish in Saint-Denis.

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The course

The route

The route crosses the island from the south coast over the Piton de la Fournaise volcano zone, plunges down and climbs back up through the cirques, tops out on the high ridge near Roche Écrite, then drops on a long technical descent to the stadium in Saint-Denis.

Weather

Late-October, Saint-Pierre → Saint-Denis

24°CTypical high

19°CTypical low

16°CColdest in 20 years

27%Days with rain

Highs around 24°C and lows around 19°C, but it has dropped to 16°C. Rain on 27% of days.

NASA POWER data, 2006-2025, the week either side of race day

Training

Training for the Grand Raid Réunion (Diagonale des Fous)

We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.

Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.

Intervals.icu

What the island throws at you

Typical sessions

Roughly 10,000m of climbing and 10,000m of descent over about 165km, with almost no flat to recover on.

Tropical heat and humidity on the coast and in the cirques, swinging to cold, wind and near-freezing ridges overnight.

One or two full nights on your feet, averaging only 3 to 5 km/h across the whole crossing.

Long, quad-shredding technical descents into the cirques, where most of the field loses its legs.

What your weeks look like

Typical sessions

Long mountain runs building from 3h toward a single 7 to 10 hour day, plus back-to-back weekends (Saturday 7h, Sunday 5h) on tired legs.

Dedicated descent work: downhill repeats and long descent runs to condition quads for 10,000m of downhill.

Heat and humidity acclimatisation in the final 6 to 10 weeks, layered onto easy runs, plus a post-run sauna protocol.

Night runs with your headtorch and power-hike pole repeats on steep ground, with full kit and fuelling rehearsed.

Not a generic schedule

Typical sessions

Built from your current fitness and the time you actually have

Adapts every week as Beina learns how you respond

Syncs your sessions straight to Garmin and Wahoo

One clear next session, never a wall of spreadsheet

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