Logo

Shawnee Hills Trail Races

Ozark, United States • 23-24 Aug 2025

The Shawnee Hills Trail Races, held at Camp Ondessonk in Ozark, Illinois, offer challenging ultramarathon distances including 100 miles, 100K, 50K, and a half marathon. Set within the scenic Shawnee National Forest, the course features a figure-eight loop with 80% single-track trails, technical terrain with rocks, roots, and creek crossings, and notable natural landmarks like Pakentuck Falls, Jackson Falls, and Salomon's Ridge. Runners experience a hilly route with total climbs ranging from 2,500 to 7,500 feet over 50 miles. The event provides well-stocked aid stations, rustic treehouse lodging, and custom finisher awards, creating a memorable outdoor endurance experience. Visit the organization's website for the most recent information.

United States Illinois Ozark

Race information

Website Registration
100 mi
100 Mile Run
100 km
100k Run
50 km
50k Run
13 mi
Half Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

The Last Boyscout

Goreville - 11 mi from Ozark

The Last Boyscout is a challenging Last Man Standing race held at Ferne Clyffe State Park in Goreville, Illinois. Participants run a 4.167-mile loop on the Boyscout Trail, featuring single track, jeep roads, paved sections, and about 600 feet of elevation gain per loop. The race tests endurance and..

Arrowhead Endurance Run

Johnston City - 21 mi from Ozark

The Arrowhead Endurance Run, held at Arrowhead Lake Campground in Johnston City, Illinois, features a certified 2.07-mile loop trail around the lake, mostly gravel with minimal elevation change, ideal for fast times and high mileage. The event offers multiple race options including 24-hour, 24-hour..

Tunnel Hill 100 & 50 Mile Runs

Vienna - 11 mi from Ozark

The Tunnel Hill 100 & 50 Mile Runs take place in Vienna, Illinois, on the scenic Tunnel Hill State Trail, a smooth crushed limestone rails-to-trails path featuring gentle grades and iconic landmarks like a historic tunnel and trestles. The event offers 100-mile and 50-mile distances, both USATF-sanc..