Articles

Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

Trail Running: How it Can Help Reduce Stress and Anxiety

Trail running is an effective way to reduce stress, anxiety, and improve physical and mental he..

Trail Running vs. Road Running: Which One Is Right For You?

When it comes to running, there are two primary options to choose from: trail running and road..

Foulées d'Osny

Name: Foulées d'Osny
Start: 2026-05-24
End: 2026-05-24
Location: Yvelines

Yvelines, France • 24 May 2026

The Foulées d'Osny will take place in Yvelines on Sunday 24 May 2026. You can run between 5 and 10 kilometers. Visit the organization's website for the most recent information.

France Yvelines Île-de-France Yvelines

Race information

Registration

10 km

5 km

1,5km Chronométré

1,5km Ecoles - Non Chronométré

800m

800m - Ecoles

Visit the organization's website for the most recent information.

Trail runs nearby

Sunday Jan 11

Cross SDIS 28 – Yermenonville

The Cross SDIS 28 – Yermenonville will take place in Saint-Piat on Sunday 11 January 2026. You can run between 5 and 7 kilometers.

Fri - Sat Jan 16-17

Yerres Trail by Night

Yerres

12 km

22 km

The Yerres Trail by Night will take place in Yerres from Friday 16 January 2026 to Saturday 17 January 2026. You can run between 12 and 22 kilometers.

Sunday Jan 25

Trail des Marcassins - Saint-Brice-sous-Forêt

Saint-Brice-sous-Forêt

15 km

30 km

The Trail des Marcassins - Saint-Brice-sous-Forêt will take place in Saint-Brice-sous-Forêt on Sunday 25 January 2026. You can run between 15 and 30 kilometers.

Sat - Sun Jan-Feb 31-1

Maxicross Bouffémont

...

The Maxicross Bouffémont will take place in Bouffémont from Saturday 31 January 2026 to Sunday 1 February 2026. You can run between 10 and 60 kilometers.

UTMB Index