Ti Trail de Guer is a Saturday-in-April trail event in Guer, Brittany, offering three running distances and a Nordic walk. Participants can select the 9 km Ti'trail, the 14 km Oyen Trail, or the 24 km Rand Trail. For walkers, there is La Dique, a 14 km Nordic walking route. The event is organized by BRPG, Brocéliande Running Pays de Guer, which is the running section of the Enfants de Guer association.
The routes follow nature trails, not roads. The 14 km option provides a good overview of the event: it is suitable for beginners, features hills, and includes approximately 250 meters of elevation gain. The Rand Trail, the longest distance, starts first, followed by the Nordic walk, the 14 km run, and finally the 9 km race. This staggered start order means the afternoon progresses with multiple groups of runners and walkers. The second edition saw 736 participants start across the running distances and the walk. Merchandise, including race-branded shirts, neck gaiters, and caps, is available for purchase at the venue.