Trail Running calendar near Den Dolder 2025-2026

The 100 Bruggenloop will take place in Leiden from Saturday 27 September 2025 to Sunday 28 September 2025. You can run between 9 and 20 kilometers.

The Groot Boeschoten Trail will take place in Voorthuizen on Saturday 27 September 2025. This trail is organized by Cairn Adventures. You can run between 9 and 38 kilometers.

The De Posbankloop will take place in De Steeg on Sunday 28 September 2025. You can run between 6 and 15 kilometers.

The Petzl Night Trail will take place in Utrechtse Heuvelrug on Friday 3 October 2025. You can run 6 kilometers.

The Brewery Run Rotterdam will take place in Rotterdam on Friday 3 October 2025. You can run between 7 and 7 kilometers.

The Devil's Trail - Utrechtse Heuvelrug will take place in Doorn from Saturday 4 October 2025 to Sunday 5 October 2025. This trail is organized by Devil's Trail. You can run between 8 and 160 kilometers.

The Leersumse Veld Trail will take place in Leersum on Saturday 4 October 2025. This trail is organized by Trail Events. You can run between 11 and 21 kilometers.

The Hoge Veluwe Loop will take place in Otterlo on Sunday 5 October 2025. You can run between 6 and 20 kilometers.

The Den Alerdinckloop will take place in Laag Zuthem on Sunday 5 October 2025. You can run between 5 and 10 kilometers.

The Dordtse Biesbosch Trailrun will take place in Dordrecht on Saturday 11 October 2025. You can run between 5 and 21 kilometers.

The Biertrail Oisterwijk will take place in Oisterwijk on Saturday 11 October 2025. You can run between 8 and 16 kilometers.

The GAC Trailrun will take place in Milheeze on Sunday 12 October 2025. You can run between 12 and 65 kilometers.

The Maarten Maartens Trailrun will take place in Doorn on Sunday 12 October 2025. You can run between 6 and 20 kilometers.

The Oostvaardersrun will take place in Lelystad on Sunday 12 October 2025. You can run between 10 and 21 kilometers.

The Amerongse Berg Trail will take place in Overberg on Sunday 12 October 2025. This trail is organized by Trail Events. You can run between 12 and 20 kilometers.

The Dutch Backyard Ultra will take place in Zeewolde from Saturday 18 October 2025 to Wednesday 22 October 2025. This trail is organized by Trail Events. You can run 7 kilometers.

The Oosterhoutse Trail will take place in Oosterhout on Saturday 18 October 2025. You can run between 10 and 26 kilometers.

The Lage Vuursche Ultra will take place in Baarn on Saturday 25 October 2025. This trail is organized by Trail Events. You can run between 50 and 100 kilometers.

The Posbank Trail will take place in Velp on Saturday 25 October 2025. This trail is organized by Cairn Adventures. You can run between 6 and 24 kilometers.

The Duinentrail Schoorl will take place in Schoorl on Sunday 26 October 2025. This trail is organized by MudSweatTrails. You can run between 12 and 52 kilometers.