This event is in the past.It took place on April 26, 2026 at Bergerie nationale de Rambouillet.

🥤Bring your own cup — no disposable cups at aid stations
📋Pick up bibs early at partner stores to skip race-day lines
👨👩👧👦The 5 km Guillaume race is perfect for families with kids
Tear through the grounds of Château de Rambouillet on a trail race with distances from a family-friendly 5 km to a challenging 26 km. You'll wind past the Bergerie Nationale, through ONF-managed forests, and around castle parkland: five courses, one stunning estate.
trail running
Nordic walking
family race option
château grounds

🥤Bring your own cup — no disposable cups at aid stations
📋Pick up bibs early at partner stores to skip race-day lines
👨👩👧👦The 5 km Guillaume race is perfect for families with kids
Tear through the grounds of Château de Rambouillet on a trail race with distances from a family-friendly 5 km to a challenging 26 km. You'll wind past the Bergerie Nationale, through ONF-managed forests, and around castle parkland: five courses, one stunning estate.
trail running
Nordic walking
family race option
château grounds