DateExpected
Late October 2026
Based on past editions. We'll confirm when the organiser announces.
Venue
Rainbow Valley Ranch, Fall Creek Road, Swan Valley, Idaho
Swan Valley, Bonneville County
Countdown
October
The half-marathon version of the Beast: an out-and-back to a turnaround, with a gentle 822 m of climbing and plenty of time to enjoy it.
Key facts
016-hour cut-off at 15:00
02Out-and-back to a turnaround, passing 3 aid stations along the way
Create a free training plan for the Fall Creek Beast 21 km
7-day free trial, no card required
The course
The route
Swan Valley
Distance21km
Total climb822m
StartElevation
0 kmDrag map to rotate21.1 km
Weather
Late-October, Swan Valley
7°CTypical high
-3°CTypical low
-16°CColdest in 20 years
35%Days with rain
Highs around 7°C and lows around -3°C, but it has dropped to -16°C. Rain on 35% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserDillon, Quinn and Reilly Kunz
Websitefallcreekbeast.com
Instagram@fallcreekbeast
Running since2025
Training
Training for the Fall Creek Beast 21 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 Fall Creek Beast 21 km plan targets
Typical sessions
21 km with 822 m of climbing
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 Fall Creek Beast 21 km plan.
7-day free trial, no card required.
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