Jim Walmsley

Walmsley built his reputation on fast, runnable courses: three Western States wins, including a 14:09 course record in 2019, and a world best for 50 miles on the road that same year. UTMB's steep Alpine terrain was a different problem, and after several failures he moved his family to the Chamonix valley to learn it, winning in 2023 as the first American man to do so. His career shows how deliberately range can be built.