Ultra Trail La Mayenne is an 85 km race along the Mayenne towpath, connecting Mayenne and Daon by the river. Scheduled for April, it can be completed solo or as a relay, offering a challenge between a full ultra and a shared long-distance run.
The course follows the old towpath beside the Mayenne with minimal elevation change (66 meters negative). Relay teams can divide the race into legs of 36.7 km and 48.3 km, with the option for the pair to run the last kilometer together. Alternatively, the course can be split into five shorter sections, such as Mayenne to Montflours and Montflours to La Pignière. Mandatory equipment is required, and aid stations are cup-free. The inaugural event attracted 550 participants. Organizer Le Son de vie allocates profits to Deux rayons de soleil, supporting twins with cerebral palsy, and to the departmental Handisport committee.