This event is in the past.It took place on March 29, 2026 at AccroCamp Paris - Jablines | Accrobranche 77.
TrackTrackHow long can you keep going? The first Backyard Ultra in Île-de-France challenges runners to complete a 6.7 km loop every hour until only one remains standing. No finish line, no set distance: just you against the clock.
Endurance running challenge
Last runner standing
Hourly loop format
Natural park setting
Tips
🚗organizers encourage carpooling to the site
⏱️new 6.7 km loop starts every hour on the hour
Backyard Jablines
TrackTrackHow long can you keep going? The first Backyard Ultra in Île-de-France challenges runners to complete a 6.7 km loop every hour until only one remains standing. No finish line, no set distance: just you against the clock.
Endurance running challenge
Last runner standing
Hourly loop format
Natural park setting
Tips
🚗organizers encourage carpooling to the site
⏱️new 6.7 km loop starts every hour on the hour
Make it an outing
Add nearby spots before or after your event