Rothrock by UTMB joins the North American calendar of events in 2026
The UTMB (Ultra-Trial du Mont-Blanc) World Series is the world's ultimate trail running circuit that features leading international events. It allows runners to experience the UTMB adventure and compete for the chance to qualify for the prestigious UTMB Mont-Blanc and the UTMB World Series Finals. The series is built on values of fair play, environmental protection, and delivering exceptional local experiences, making it a significant event for trail runners worldwide.