IMTUF 100
IMTUF 100 is a rugged mountain hundred around McCall, combining remote Idaho singletrack, sustained climbing and a deeply established ultra community.
Quick facts
- Rugged Idaho mountain hundred
- Remote singletrack and long climbs
- Qualification standards for entry
- Payette high country around McCall
Is there a waitlist for the 2026 IMTUF 100?
Direct entry for the 2026 IMTUF 100 is unavailable, but the official waitlist is open.
About the IMTUF 100
The Idaho Mountain Trail Ultra Festival centers on one separately timed 100-mile race with its own qualification standards and results archive.
Course
Technical mountain trail, forest roads and high-country climbs create a demanding loop through the Payette region around McCall.
Race-day weather
Mid-September can shift from warm sun to freezing overnight temperatures, rain or early snow in the Idaho mountains.
Past IMTUF 100 dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, September 19, 2026 | Upcoming | — |
| 2025 | — | Completed | Open results |
| 2024 | — | Completed | Open results |
IMTUF 100 FAQ
When is the IMTUF 100?
The 2026 IMTUF 100 is on Saturday, September 19, 2026.
Is there a waitlist for the 2026 IMTUF 100?
Direct entry for the 2026 IMTUF 100 is unavailable, but the official waitlist is open. View the official registration details at ultrasignup.com.
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