No runners finished the eighth edition of the Chartreuse Terminorum ultra-trail held from June 19 to June 22 [9].
The event is widely considered the hardest race in France, designed to test the absolute physical and mental limits of experienced athletes. Because the race prohibits GPS, course markers, and outside assistance, it represents one of the most extreme challenges in the sport of ultra-running.
Approximately 40 runners [1] were selected for the event based on motivation letters. The course consists of five loops of 60 km each [2], totaling 300 km [3] with a cumulative elevation gain of 25,000 meters [4]. All participants operated out of a base camp at La Diat in Saint-Pierre-de-Chartreuse within the Massif de la Chartreuse [1].
To successfully complete the race, athletes must finish the total distance in less than 80 hours [5]. Despite the intensity of the challenge, the first group of runners managed to complete the initial 60-km loop in under 12 hours [6]. However, the combination of the brutal terrain and canicular heat led to a result where no finishers were recorded for the 2026 event [7].
The race offers no financial rewards. Organizers and participants said the event is an obsession for ultra-trailers seeking to push their boundaries [1]. This follows the seventh edition of the race, which took place from June 20 to June 23, 2025 [8].
“The Chartreuse Terminorum is widely considered the hardest race in France.”
The lack of finishers in the 2026 edition underscores the extreme volatility of ultra-endurance sports when combined with severe weather conditions. By stripping away modern navigation tools like GPS and removing support systems, the Chartreuse Terminorum shifts from a traditional athletic competition to a survivalist exercise in self-sufficiency and mental fortitude.
