Ultra trail la Mayenne is an 85 km trail race held in the Mayenne department of France. The route uses Daon and the town of Mayenne as its start and end points. The race takes place in April and is in its early stages, with the upcoming event marking only its second edition.
The inaugural race ran from Daon to Mayenne. The subsequent edition reverses the direction, sending runners from Mayenne back to Daon. The association Le son de vie is the organizer. They are considering adding a route exceeding 100 km to provide a full ultra-trail distance in addition to the existing 85 km race.