Allerton Park Trail Run
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Event details
The Allerton Park Trail Run takes place on Sunday, October 25, 2026, at Robert Allerton Park and Retreat Center in Monticello, IL. The event schedule includes the following distances and formats:
- 5.7 Mile Trail Run
- 2 Mile Nature Walk
- VIRTUAL 5.7 Mile Trail Run
Registration opens April 5, 2026. The listed entry fee for events is $30. The 5.7-mile course follows a large section of the Sangamon River and includes trail features such as hidden roots, ruts, sharp turns, and other obstacles. The race finishes in a meadow area. The 2-mile nature walk is non-competitive and will not receive awards.
Additional information
A portion of race proceeds is donated to Allerton Park for trail maintenance and park enhancements; past uses include a railing at a dangerous spot, trail erosion control, recycle bins, a water fountain bottle filling station, and a new café in the visitor center. Virtual participants are not eligible for age-group awards; virtual results can be entered from October 25, 2026 through October 31, 2026. The event offers overall awards for the 5.7-mile run (top male, top female, top male masters, top female masters) and age-group awards (top 3 M/F in specified age ranges). Door prizes and costume contest prizes are listed. Volunteers are needed and will receive direction or training as required. For safety, dogs are not allowed on the trail run or nature walk. Visit the organization's website for the most recent information.
