5. Kardingebultra
5. Kardingebultra is a 24-hour timed race in Groningen, Netherlands, taking place on Jul 18 – Jul 19, 2026. This edition has already taken place.
- Date
- Jul 18 – Jul 19, 2026
- Duration
- 24 h
- Location
- Groningen, Netherlands
- Format
- Timed race