Ultra Running Hub Leende, Netherlands · Sunday, April 19, 2026
Leenderbos Ultra Trail
What the course asks
DUV results for the 2025 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 21 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 165 | Kevin Giebels · 04:03:11 | Olga Maas · 04:36:04 |
| 2024 | 50km | 65 | Kristof Declerck · 03:51:00 | Sifra Saarloos · 04:54:06 |
| 2023 | 50km | 52 | Tim Eichmann · 04:01:57 | Saskia Kaarsgaren · 04:51:57 |
| 2020 | 50km | 28 | Thomaz Guilherme · 04:30:00 | Kirsten Jochems · 05:02:00 |
| 2019 | 50km | 11 | Ralph Berendsen · 05:12:00 | — |
The field grew 154% between 2024 (65) and 2025 (165). 22% of the 2025 field were women.
DUV results for the 2025 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 135 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 Leenderbos Ultra Trail is a 50k trail race taking place in Leende, Netherlands. With 135 meters of elevation gain over 50 kilometers, its 2.7 meters of climb per kilometer makes it flatter than most 50k trail races.
The race has a time limit of 8 hours, which translates to a 9.6 minutes per kilometer cutoff pace. This cutoff is tighter than 80% of 50k races, leaving less margin for error than most. The latest edition saw 165 finishers, and the race has a larger field than 88% of its 2650 50k peers.
Similar races
Other 50K trail ultras, closest in distance first.