The Tro Bro Leon (Tour du Pays de Léon) is a road bicycle race created in 1984 by Jean-Paul Mellouë France t. This event has everything to become a classic. Its route offers in particular the ribinou, these side roads, still different from the cobblestones of Paris-Roubaix. It seduces the riders of classics.

Commonly called "the Hell of the West", Thomas Gachignard finished in 9th place during the 2023 edition.