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Allerton Races

Monticello, United States • 11-12 Apr 2026

Allerton Races : April 11-12, 2026

Allerton Races takes place in Monticello, Illinois (515 Old Timber Rd, 61856) on April 11-12, 2026. The event features a mix of trail and road courses and includes an evening Trail-Glo 5K run/walk. The in-person events benefit Robert Allerton Park.

Events and entry details

  • Half Marathon
  • 10K
  • Trail-Glo 5K (nighttime)
  • VIRTUAL Half Marathon
  • VIRTUAL 10K
  • VIRTUAL 5K

Entry fees listed are: Half Marathon $38, 10K $33, Trail-Glo 5K $25, VIRTUAL Half Marathon $33, VIRTUAL 10K $30, VIRTUAL 5K $25. At the time shown, the Half Marathon had 189 spots left and the 10K had 290 spots left. Registration for in-person and virtual events closes in early April 2026 (dates vary by event).

For the 14th consecutive year, the races fundraise for Make-A-Wish Illinois. A donation of $10 or more qualifies a participant as a "Wish Warrior" and adds a special logo to the sleeve of a race T-shirt if a race T is ordered. 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
Virtual 10k
Virtual Half Marathon
Virtual 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 with 30 mile and 10 mile options on March 28, 2026. Expect rolling terrain, fully stocked aid stations, finisher swag and a community focused event supporting local trail maintenance.

Sand Creek Trail Run

Decatur

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

Monticello

Enjoy a scenic and challenging 5.7 mile trail run along the Sangamon River at Robert Allerton Park in Monticello IL, finishing in a meadow. Proceeds support park trail care and there is a 2 mile nature walk plus a virtual option.