Allerton Races

APR

12

2026

A weekend of in-person and virtual races in Monticello, Illinois, featuring a trail and road Half Marathon, 10K, and a nighttime Trail-Glo 5K. The event benefits Robert Allerton Park and supports Make-A-Wish Illinois.

Sun 12 Apr 2026

Monticello, Illinois

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Half Marathon 10 kilometers 5 kilometers

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Allerton Races

Allerton Races takes place on Saturday April 11 and Sunday April 12, 2026, in Monticello, Illinois. The event offers both in-person and virtual options and includes trail and road formats. In-person options feature a trail/road half marathon, a 10K run/walk, and a nighttime Trail-Glo 5K run/walk. The venue is listed as 515 Old Timber Rd, Monticello, IL 61856.

The event supports local and charitable causes. It benefits Robert Allerton Park and, for the 14th consecutive year, raises funds for Make-A-Wish Illinois. Participants who donate $10 or more receive a special logo on the sleeve of the race T if they register with a race T. The program includes both standard and virtual versions of the distances below. Visit the organization's website for the most recent information.