RUNLOOP brings 24 hours of racing and celebration to Domaine national de Saint-Cloud
© ASOOn June 20 and 21, 2026, Domaine national de Saint-Cloud will host RUNLOOP, a brand-new sporting and human adventure organised by ASO (Amaury Sport Organisation). For 24 hours, teams of 2 to 8 runners will take turns on a 6 km loop through the grounds, combining an endurance challenge with a festival atmosphere.
A new-generation running event
RUNLOOP is a one-of-a-kind running event that reimagines the traditional race format. Designed as a collective adventure, it turns an individual sport into an immersive team experience unfolding over 24 hours, by day and by night. The concept is simple: teams of 2 to 8 runners take turns on a loop of around 6 km through the grounds. Only one runner from each team is out on the course at a time, while the rest of the team recovers, cheers them on… and enjoys the camp.
With RUNLOOP, we wanted to create a running event that puts the team back at the heart of performance. This 24-hour relay format gives runners of all backgrounds the chance to take on a genuine endurance challenge in an exceptional natural setting, drawing on team spirit rather than individual performance.
24 hours of relay racing in an exceptional setting
RUNLOOP is much more than a race. It is a fully fledged camp set in the heart of Domaine national de Saint-Cloud, a listed historic site on the outskirts of Paris, with protected natural areas, majestic forest avenues, countless statues and historic fountains. It is here that effort, recovery and shared moments will come together.
Between relay legs, participants can settle into a dedicated bivouac area, enjoy a lively base camp around the clock and soak up the music, with DJs, concerts and other entertainment, as well as the festive programme of themed bars, varied food options, games and relaxation areas. Here, you run, camp, recover… and celebrate together.
Accessible, intense and built around the team
With no individual time to chase, RUNLOOP focuses on collective strategy, relay management and team cohesion. The goal is to cover as much distance as possible in 24 hours, with rankings determined by team format. Open to runners of all abilities, the event gives everyone a role to play, whatever their level, and delivers an intense sporting experience powered by the energy of the group.
Everything you need to enter the 2026 edition
Entries for the inaugural RUNLOOP are officially open.
Teams can now register via the dedicated platform. Prices will rise over time and places are limited. First come, first served.
The editorial team