Run des Pertuis is a 20 km road race held near La Rochelle in the Charente-Maritime department of Nouvelle-Aquitaine. It takes place in autumn with a morning start, offering a single road course.
The race begins at Plage de l’Houmeau, north of La Rochelle, heading toward Île de Ré. The crossing of the Pont de l’île de Ré is a notable feature. The course follows the coastline and beaches, providing a La Rochelle-to-island atmosphere without extending to half-marathon length. Lions Club La Rochelle Doyen organizes the event, which typically sees just under 600 participants.