Idaho Mountain Trail Ultra Festival (IMTUF 100)

The Idaho Mountain Trail Ultra Festival (IMTUF 100) is an annual ultra-running event held in McCall, Idaho, featuring a challenging 100-mile race and a 20-mile race. The event emphasizes adventure running in mountainous terrain, making it suitable for experienced ultrarunners. IMTUF serves as a qualifier for prestigious races like the Hardrock 100 and Western States 100.

Participants are advised to thoroughly prepare for the demanding conditions, as the race is known for its serious nature and remote location. Registration opens on January 2, 2024, with a refund policy in place for early withdrawals. Visit the organization's website for the most recent information.