IMTUF 100 - Idaho Mountain Trail Ultra Festival

Description

15TH ANNUAL IMTUF 100 RACES. Registration opens on January 2nd, 2026. We will run the same courses as we have in years past, starting and finishing at Jug Mountain Ranch, just south of McCall. Race dates are September 19-20, 2026. The 100 mile starts on Saturday at 6AM, the 20 mile starts SUNDAY at 9AM. BEFORE REGISTERING: Read our refund policy (ends 7/1/2026). Read our waiver carefully as this is a serious race with HUGE commitment and not appropriate for many ultrarunners who want an experience without adventure and uncertainty. This is mountain adventure running with big consequences for the unprepared. Qualifiers: For 2026, IMTUF will continue to be a Hardrock 100 qualifier, as it has since 2012. The 2026 race is also a Western States 100 qualifier as it has for several years. These qualifications make IMTUF a coveted finish. Warning!!! This is a serious race. IMTUF is known to have a committing feel. You are many miles and many hours away from help, if your body or mind fails you. Though we are a qualifier for HR100 and WS100, we strongly urge you to be focused on this event 100,000%, as overlooking it for next year's goal race will be a punishing mistake. This is a post-graduate level ultra that must be respected. Refund Policy: 1. We will refund 50% of your entry fee until July 1st, 2026 at 11:59pm. 2. After July 1st, there will be no refunds. 3. We will not do any rollover or transfer of bibs. 4. IMTUF is a mountain race. If the race must be cancelled due to fire, severe weather, etc, there is no possible way for us to refund or rollover your entry. That money is gone. When you register, consider this issue and either commit or stick to safer races that run in circles. 5. If facing personal financial hardship, reach out to us.