Ultra Running Hub Noordwijk, Netherlands · Saturday, December 19, 2026
Hollands Duin Ultra
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, December
Regional 2001-2020 average for December — NASA POWER, grid elevation 0 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 139 | Dennis van Ras · 03:58:19 | Olga Maas · 04:47:13 |
17% 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 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 50 km of trail with 750 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 Hollands Duin Ultra is a 50k trail race organised by Trailrunning Europe, taking place in Noordwijk, Netherlands on December 19, 2026. This 50k event features 750 meters of elevation gain, making it a moderately hilly course with 15 meters of climb per kilometer.
The 9-hour time limit means a cutoff pace of 10.8 minutes per kilometer, tighter than 60% of comparable 50k races. With 139 finishers in its first edition in 2025, this race had a larger field than 85% of its 2650 peer 50k races.
Similar races
Other 50K trail ultras, closest in distance first.