Trail
42 km (~650 m D+)
42 km
Start: Dec 4, 09:30 PM
Pre-registration: 38.00 EUR
Trail des Arpents
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Trail in France, Le Perray-en-Yvelines
Distances
Trail
23 km (~350 m D+)
23 km
Start: Dec 4, 09:45 PM
Pre-registration: 23.00 EUR
About
A forest trail race in the Chevreuse valley (Yvelines) offering two technical routes — 23 km (~350 m D+) and 42 km (~650 m D+) — through forest and heritage sites. Organised by Alternature.
Catering & aid stations
Ravitaillement sur le parcours (eau, produits énergétiques et/ou alimentaires selon les points). Sur place, des boutiques et restauration sont proposés sur les bases de vie.
Pacers
Pacemakers will run with the field on the 42 km route according to target times displayed on the race-day start corrals (start waves). Pacers carry visible pacer flags to help runners maintain target pace; refer to the published ‘Renntag pour les coureurs’ schedule for exact target times per wave.
Results
View official resultsTypical weather in Le Perray-en-Yvelines
Monthly averages based on historical data (2000–present).
Jan7°2°
↑ 08:41
↓ 17:23
Feb8°2°
↑ 08:03
↓ 18:13
Mar11°3°
↑ 07:06
↓ 18:58
Apr15°6°
↑ 07:02
↓ 20:44
May18°9°
↑ 06:12
↓ 21:28
Jun22°13°
↑ 05:50
↓ 21:58
Jul24°14°
↑ 06:07
↓ 21:52
Aug24°14°
↑ 06:47
↓ 21:09
Sep20°12°
↑ 07:30
↓ 20:07
Oct16°9°
↑ 08:14
↓ 19:04
Nov10°5°
↑ 08:02
↓ 17:14
Dec7°2°
↑ 08:40
↓ 16:58
What's included in entry
- Race number
- Race participation
- Finisher medal
- Race catering
- Chip timing
Prices & signup
- 23 km (~350 m D+)23.00 EUR
- 42 km (~650 m D+)38.00 EUR
FAQ
Quelles sont les distances proposées ?
23 km (~350 m D+) and 42 km (~650 m D+).
Quand a lieu l’événement ?
Sunday 6 December 2026.
Où se déroulent les courses ?
Start and finish at the mairie du Perray-en-Yvelines (Place de la Mairie), with routes traversing the protected Rambouillet forest and nearby communes.
Comment s’inscrire ?
Online via the official registration page; registration closes 30 November 2026 and closes earlier when quota is reached.
Qu’est-ce qui est inclus dans le tarif ?
Race number, participant medal, race catering, chip timing, and race organization support.
Y a-t-il une assurance annulation ?
No race insurance or cancellation coverage is provided.
Last updated: Jun 5, 2026, 11:42:14 PM
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