Ondessonk Trail Race
Ozark, United States • 11 Apr 2026
Ondessonk Trail Races
The Ondessonk Trail Races take place on April 11, 2026, at Camp Ondessonk in Ozark, Illinois. This is the 16th annual running of several on-trail events that use the camp property, including routes that pass forests, canyons, pastures, and Lake Echon.
Available race distances include:
- Half Marathon - 13.1 Miles
- Manchester 10k - 6.2 Miles
- 5k Run - 3.1 Miles
- One-Mile Fun Run - 1 Miles
Entry fees and early-bird pricing are specified for each race. Listed base or early-bird fees are $50 for the half marathon, $40 for the Manchester 10k, $30 for the 5k, and $20 for the one-mile fun run; published materials also note higher registration fees after the early-bird period. Most races include a participant T-shirt, with shirt size requests not guaranteed for registrations completed after March 18. Awards in the 5k, Manchester 10k, and half marathon recognize top male and female finishers with trophies.
The terrain is described as camp trails and natural features on the property, with family-oriented phrasing for the one-mile run and the 5k indicating all ages can participate. Visit the organization's website for the most recent information.