5–21.1km
4 courses
Dordtse Biesbosch Trailrun
Dordrecht, South Holland · 🇳🇱 Netherlands
Trail
Upcoming races
October2026· 1 race
Sat 10.10.1 race
November2026· 2 races
Sat 07.11.1 race
20km
1 course
Haagse Duinentrail
Den Haag, South Holland · 🇳🇱 Netherlands
TrailGPX
Sat 28.11.1 race
7–160km
2 courses
Backyard Ultra Rotterdam
Rotterdam, South Holland · 🇳🇱 Netherlands
Ultra
December2026· 2 races
Sun 06.12.1 race
15–60km
4 courses
Voorne's Duin Trail & Walk
Hellevoetsluis, South Holland · 🇳🇱 Netherlands
Ultra
Sat 19.12.1 race
50km
1 course
Hollands Duin Ultra
Vrijstaat Nederzandt, South Holland · 🇳🇱 Netherlands
Trail
January2027· 1 race
Fri 22.01.1 race
25–100km
4 courses
Pierewaai Winter Trail
IJmuiden, South Holland · 🇳🇱 Netherlands
251–594 m D+
Ultra
February2027· 1 race
Mon 01.02.1 race
13–42.2km
3 courses
Coast Marathon Nationaal Park Hollandse Duinen
Noordwijk aan Zee, South Holland · 🇳🇱 Netherlands
80–280 m D+
Dates to be confirmedTrailGPX
GPXApril2027· 1 race
Sat 17.04.1 race
50km
1 course
Hollands Duin Ultra
Vrijstaat Nederzandt, South Holland · 🇳🇱 Netherlands
Trail
Date to be confirmed· 1 race
Date to be confirmed1 race
10–42.2km
3 courses
Coast Marathon Nationaal Park Hollandse Duinen
Noordwijk, South Holland · 🇳🇱 Netherlands
Trail