Ultra Running Hub Chaumont-Gistoux, Belgium · Sunday, December 6, 2026
Fixed Distance 50 mi
Trail du BW - 84km
81 days away
85 km Distance
1,550 m Climbing
6.6 Grit · Hardcore
What the course asks
Climbing rate 18 m / km
Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 12 hours
8:28 min/km average. Comfortable. Room to walk the climbs and stop at aid. Among the tightest 50 mi cut-offs we track. Measured against 455 races of the same distance. Cut-off calculator →
Field size ~64 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2025 edition (84km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 84km | 64 | Philip van Hemelen · 07:15:32 | Jil Gillen · 07:58:29 |
| 2023 | 84km | 43 | Sven Vanbaelen · 06:19:21 | Pauline Thinus · 08:44:09 |
The field grew 49% between 2023 (43) and 2025 (64). 14% of the 2025 field were women.
DUV results for the 2025 edition (84km) — 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 rolling 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 85 km of trail with 1,550 m of ascent.
- Trail Running Shoes 85 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 85 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 85 km, without the bounce.
- Headlamps A 12 h limit puts you out there after dark.
- GPS Watches Battery life first — a 85 km day outlasts most full-GPS modes.
Similar races
Other 50 mi trail ultras, closest in distance first.