Challenge Jean Roure is an annual nature race held in Les Pennes-Mirabeau, Bouches-du-Rhône, organized by L'APM, the Amicale des Pennes-Mirabeau. Participants can select from two off-road distances: the CJR Trail, covering 24 km with 700 meters of elevation gain, and the CJR Nature, a 12 km course with 350 meters of elevation gain.
The courses follow hill and forest paths, presenting a local trail running event rather than a flat road race. Registration is open to participants from the cadet category upwards. The event provides on-site changing rooms and showers, refreshments along the course, and a buffet at the finish line. All finishers will receive a prize, with additional awards for the top three overall finishers and the top three in each category.