The UTMB World Series stands as the premier international trail running circuit, encompassing more than 60 distinct events spanning five continents that serve as official gateways to the prestigious UTMB Mont-Blanc Finals. This comprehensive ecosystem is anchored by three core components: the collection of Running Stones to secure qualification, a performance-based UTMB Index used to evaluate runner ability, and the UTMB Live platform, which provides real-time tracking for participants and fans alike.
