a grassy hill with a path going up it
Boscross

Boscross 42.2K

42.2K·33m gain·Diever, Netherlands
foresttrailloopmarathonbeginner friendly

Photo by Carol Fung on Unsplash

Distance42.2K
Gain33m
Date12 Dec 2026
Fee€850
Difficulty4/5

About This Race

The full four-loop marathon distance represents a significant trail running challenge. With a five-hour time limit, runners face the cumulative demands of repeated hills and sandy sections across marathon distance.

The full four-loop marathon distance represents a significant trail running challenge. With a five-hour time limit, runners face the cumulative demands of repeated hills and sandy sections across marathon distance.

Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

The course gains 33m over 42km, with the steepest section between km 33–km 33.

Location

Practical Info

Accommodation

Race headquarters and post-race gathering located at Groepsaccommodatie "Het Kasteel" at Kasteel 19 in Diever.

Best For

recreational runnerstrail running newcomersmarathon runners

Notable Features

The loop-based format allows runners to customize their distance from 10.5K to marathon distance, making it accessible to a wide range of abilities. The course features enhanced terrain with additional hills and sandy sections, while maintaining excellent support with aid stations every 5 kilometers and comprehensive medical coverage.

Other Distances at This Event