Kardingebultra

Kardingebultra is an extreme running event set in the scenic Kardinge recreation area in Groningen, scheduled for July 19, 2025. Participants tackle a 6,706-meter loop with a 32-meter elevation gain, aiming to complete as many laps as possible within a 24-hour timeframe. Each hour, runners must start a new lap, and failure to do so results in disqualification.

The event is designed for individual competitors, with a maximum of 24 laps (100 miles) available. Registration includes a race number, electronic timing, refreshments, and a unique keepsake, while also supporting local nature conservation efforts. Visit the organization's website for the most recent information.