Kilian Korth is an American ultra-distance trail runner who became the first man to sweep the Triple Crown of 200s in a single year since Mike McKnight in 2019. Born in 1995 in England and raised in Bury St. Edmunds, Korth is now based in Grand Junction, Colorado, where he competes as one of the leading 200-mile specialists in the sport.
Korth's 2025 season produced a Triple Crown sweep that broke McKnight's six-year cumulative record. He won the Tahoe 200 in 52:40:52, the Bigfoot 200 in 45:03:41 (course record), and the Moab 240 in 58:45:47, with a combined cumulative time of 156:30:20. The Bigfoot win came through aid station efficiency rather than fastest moving time, with Korth spending no more than twelve minutes at any of the twelve aid stations on course.
Korth's relationship with the Cocodona 250 has been the most-discussed unfinished story of his career. He DNFed in 2022 at mile 100 with a torn hamstring, dropped at mile 220 in 2023 after his oxygen saturation fell to 82 percent and required ICU hospitalization for a severe allergic reaction, and DNFed again in 2024 from a recurring allergic reaction. He returns to Cocodona for 2026 having spent the year on allergy shots and a revised medication plan, with his stated goal of winning the race.