Ultra Running Hub Les etangs de Hollande, France · Saturday, April 18, 2026
La Diagonale des Yvelines 50km
What the course asks
DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, April
Regional 2001-2020 average for April — NASA POWER, grid elevation 133 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 50km | 407 | Benjamin Crochet · 03:48:27 | Frederique Bourree · 04:47:24 |
| 2025 | 53km | 310 | Benoit Gandelot · 04:25:40 | Patricia Lossouarn · 05:17:49 |
| 2024 | 50km | 266 | Bertrand Colange · 03:54:08 | Caroline Rousseau · 05:03:32 |
| 2023 | 50km | 219 | Clement Peyrat · 03:40:01 | Camille Chopart · 04:39:25 |
| 2022 | 50km | 132 | Clement Peyrat · 03:43:19 | Isabelle Rivierre · 05:00:09 |
| 2019 | 48km | 102 | Aurelien Collet · 03:22:44 | Tiphaine Germain · 04:06:16 |
The field grew 31% between 2025 (310) and 2026 (407). 22% of the 2026 field were women.
DUV results for the 2026 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
The Aid Station
Course-specific beta from the community
This is a fast & flat course. Expect fast, runnable sections where rhythm is key.
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail with 500 m of ascent.
- Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 50 km, without the bounce.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Overview
The La Diagonale des Yvelines 50km, a trail race organised by AAA Aventure, starts in Les etangs de Hollande, France, on April 18. This 50-kilometer fixed-distance event features 500 meters of elevation gain, equating to 10 meters of climb per kilometer. With a field of 407 finishers in its latest edition, this race is larger than 97% of its 2650 peer 50k races.
Runners face a cutoff pace of 10.8 minutes per kilometer over the 50km course. The 9-hour time limit is tighter than 60% of 1009 comparable 50k races, requiring participants to maintain a steady pace throughout. The entry fee ranges from 45 to 50€.
Similar races
Other 50K trail ultras, closest in distance first.