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IMTUF 100 - Idaho Mountain Trail Ultra Festival
McCall, Idaho · Saturday, September 19, 2026 · 100 Mile
Official race page & registration ↗IMTUF 100 - Idaho Mountain Trail Ultra Festival takes place on Saturday, September 19, 2026 in McCall, Idaho. The race is run over 100 Mile. It is run on trail. For anyone travelling in, Boise is about 85 miles away.
It is one of 30 races on the Idaho calendar that September. The 100 Mile is rare in Idaho: only two races on the calendar offer it.
- Date
- Saturday, September 19, 2026
- Location
- McCall, Idaho
- Distances
- 100 Mile
- Surface
- Trail
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
Making a race weekend of it?
Stay near the start line in McCall: check in Sep 18, out Sep 20.
Common questions
When is IMTUF 100 - Idaho Mountain Trail Ultra Festival?
IMTUF 100 - Idaho Mountain Trail Ultra Festival is scheduled for Saturday, September 19, 2026.
Where is IMTUF 100 - Idaho Mountain Trail Ultra Festival held?
IMTUF 100 - Idaho Mountain Trail Ultra Festival is held in McCall, Idaho. It is about 85 miles from Boise.
What distances does IMTUF 100 - Idaho Mountain Trail Ultra Festival offer?
The listed distances are 100 Mile.
How do I register for IMTUF 100 - Idaho Mountain Trail Ultra Festival?
Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.
More races nearby
- Sep 192026 Walk,Run,Read for Literacy! Sept. 19thCoeur d'Alene, ID
- Sep 19Bear Lake Brawl TriathlonSt Charles, ID
- Sep 19Priest Lake MarathonPriest Lake, ID
- Sep 19Schweitzer Hill Climb - in memory of Joe ClaxstonSandpoint, ID
- Sep 19The Dwight Bershaw Memorial .5K Fun Run - THE RACE FOR THE REST OF US!Coeur D Alene, ID
See every race on the Idaho calendar, Idaho Ultras, or use the Race Finder for maps and filters.