The Shawnee Hills 100M, 100K, 50K & Half Marathon is a premier trail running event held in the heart of the Shawnee National Forest at Camp Ondessonk in Ozark, Illinois. Taking place on August 22-23, 2026, this event offers multiple race distances to suit various skill levels, from the challenging 100-mile ultramarathon to the half marathon. Runners will experience the scenic beauty of the forest while testing their endurance in this well-regarded annual competition.
What to Expect
A series of trail races ranging from a half marathon to a 100-mile ultramarathon.
Who Should Attend
- Trail runners
- Ultramarathoners
- Endurance athletes
- Outdoor enthusiasts
Agenda Overview
The event spans August 22-23, 2026, with early morning starts.
Venue & Address
Organizer
Shawnee Hills Trail Races · Event Organizer
Organizers of the annual Shawnee Hills trail running series.
Frequently Asked Questions
What distances are available?
100M, 100K, 50K, and Half Marathon.
Where is the race?
Camp Ondessonk, 3760 Ondessonk Rd, Ozark, IL.
When is the event?
August 22-23, 2026.
Is it a trail race?
Yes, it takes place in the Shawnee National Forest.
How do I register?
Registration is available through UltraSignup.
Is there a pre-race meeting?
Yes, check the event schedule for details.
Tags
Trail Running
Ultramarathon
Ozark
Illinois
Sports
Race
Summary
A multi-distance trail running event held at Camp Ondessonk in Ozark, IL.
Highlights
- Multiple race distances
- Scenic forest trails
- Challenging ultramarathon options
- Camp Ondessonk venue
- August 2026 event
- Endurance running competition
More in Ozark
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