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Allerton Races

Monticello, United States • 11-12 Apr 2026

Allerton Races - Monticello, IL

Allerton Races takes place Saturday April 11 to Sunday April 12, 2026, in Monticello, Illinois. The event location is 515 Old Timber Rd, Monticello, IL 61856. The schedule includes both road and trail formats: a Trail/Road Half Marathon, a 10K run/walk, and a Trail-Glo 5K run/walk held as a nighttime event. Virtual options are offered for the Half Marathon, 10K, and 5K. The event benefits Robert Allerton Park.

Events and fees

  • Half Marathon - in-person and virtual; price: $38
  • 10K - in-person and virtual; price: $33 (in-person) / $30 (virtual)
  • Trail-Glo 5K - in-person nighttime; price: $25 (in-person) / $25 (virtual)

The race has an ongoing fundraising partnership with Make-A-Wish Illinois. For the 14th consecutive year the event raises funds for Make-A-Wish Illinois; a donation of $10 or more qualifies for a special logo on the sleeve of a race T-shirt when a race T is registered. Visit the organization's website for the most recent information.

United States Illinois Monticello

Race information

Website Registration Facebook
Half Marathon
Half Marathon
10 km
10k
5 km
Trail-Glo 5k
Visit the organization's website for the most recent information.
Trail runs nearby

Clinton Lake Ultra

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Run scenic single track loops around Clinton Lake near DeWitt, IL through forests, hills and meadows with a bridge connecting the course. Choose the 30 Miler or 10 Mile, enjoy post race food and a long sleeved finisher item.

Sand Creek Trail Run

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Run fast rolling trails at Sand Creek in Decatur on Sept 12 and choose 4.4 or 7.6 miles for a lively trail challenge. Get a tech shirt and finisher medal while supporting the Special Operations Warrior Foundation.

Allerton Park Trail Run

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Enjoy the Allerton Park Trail Run on October 25, 2026 at Robert Allerton Park in Monticello Illinois, featuring a scenic 5.7 mile riverside trail, a relaxed 2 mile nature walk, and a virtual option. Proceeds support park upkeep and the day..