Date
Sat, 21 Aug 2027
Start
08:00
Venue
Camp Ondessonk, Ozark, Illinois
Ozark, Johnson County
Countdown
August
A half marathon on trail that runs a bit heavy: a loop round camp first, then the west section. It's the shortest way into the weekend.
Key facts
0112-hour cut-off
02Starts with an extra loop around camp
03About 13 miles on the west section after that
Create a free training plan for the Shawnee Hills Trail Races 21 km
7-day free trial, no card required
The course
The route
Ozark
Distance21km
StartElevation
0 kmDrag map to rotate20.6 km
Weather
Late-August, Ozark
31°CTypical high
20°CTypical low
12°CColdest in 20 years
32%Days with rain
Highs around 31°C and lows around 20°C, but it has dropped to 12°C. Rain on 32% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Caleigh Hill02:30:148.4 km/h
02Blake Clark02:42:087.8 km/h
03Randi Dasch02:46:487.6 km/h
42
Women finishers
3:51:02
Median time
5.5 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
OrganiserMicki and Chad Colson
Websiteshawneehills100.com
Instagram@shawneehillstrailraces
Running since2017
Training
Training for the Shawnee Hills Trail Races 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 Shawnee Hills Trail Races 21 km plan targets
Typical sessions
21 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
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Get your Shawnee Hills Trail Races 21 km plan.
7-day free trial, no card required.
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