IMTUF 100 - Idaho Mountain Trail Ultra Festival 161 km
RunningLoop
DateExpected
Mid September 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Jug Mountain Ranch, near McCall, Idaho
Idaho
Countdown
September
A true 100 miler through Idaho's mountains, run as a single loop. It's a big day out that turns into a night, and it's a serious commitment from the start.
Create a free training plan for the IMTUF 100 - Idaho Mountain Trail Ultra Festival 161 km
7-day free trial, no card required
The course
The route
Idaho
Distance161km
StartElevation
0 kmDrag map to rotate146.1 km
Weather
Mid-September, Idaho
22°CTypical high
8°CTypical low
-3°CColdest in 20 years
18%Days with rain
Highs around 22°C and lows around 8°C, but it has dropped to -3°C. Rain on 18% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Ginny Robbins23:07:037.0 km/h
02Meg Inokuma24:43:516.5 km/h
03Grace Baumer25:13:456.4 km/h
27
Women finishers
1d 9:03:32
Median time
4.9 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the IMTUF 100 - Idaho Mountain Trail Ultra Festival 161 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a IMTUF 100 - Idaho Mountain Trail Ultra Festival 161 km plan targets
Typical sessions
161 km
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your IMTUF 100 - Idaho Mountain Trail Ultra Festival 161 km plan.
7-day free trial, no card required.
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