Paris-saclay running tour - Villebon-sur-Yvette 2026

The Paris-Saclay Running Tour in Villebon-sur-Yvette follows the Yvette river through town streets and wooded sections in the Essonne area southwest of Paris. The race date is unconfirmed, and the program focuses on accessible running and walking rather than a single main event. Entries include a 5 km for walkers, runners, and joëlette teams, a 10 km for solo runners or two-person relays, and a half marathon for solo participants or relays of two or four people. The routes pass through Villebon-sur-Yvette, Palaiseau, and Orsay, with modest elevation changes rather than a mountain profile: approximately 43 m of gain on the 5 km, 53 m on the 10 km, and 162 m on the 21 km course. Agglomération Paris-Saclay organizes the event, and a previous edition had 628 participants. The relay options and joëlette category make it suitable for groups, mixed abilities, and runners seeking a local race day with multiple participation options.