The PTL^® (Petite Trotte à Léon) is one of the events on offer within the framework of the UTMB^®.
Its conception is original and its unusual specificities distinguish it from other races. The spirit of the PTL^® depends upon mental engagement, an adventurous team spirit as well as sporting values and also those of the mountains.

This ultra-endurance pedestrian event leads participants on a large tour of Mont-Blanc (300km and 25000m of ascent), taking high routes, without way-markers on the ground, which necessitates the sense of orientation on and off paths. Each year the route is different to allow for the discovery of the richness and diversity of paths in France, Italy and Switzerland within the Mont-Blanc massif.
The  PTL^® is realised in teams of 3 inseparable and loyally supportive people, without final ranking. The teams move through a rough, technically exacting and mentally and physically  demanding mountain environment.

With regard to the difficulties inherent to this event, applications are selected from a file of experiences submitted by each established team.

For its 13th year the start of the PTL^® is fixed for Monday August 23th 2021 at 08:00, from the Place Centrale d'Orsières. The finishers will be judged in Place du Triangle de l'Amitié in Chamonix, until Sunday August 29th at 16:30, so a maximum time of 152:30.

The proposed course around Mont-Blanc, omnipresent, and its prestigious satellites, is this year still innovative and outstanding. You will cross little known areas, often difficult to access and with the most breath-taking views.