Allerton Races
Sun, Apr 12, 2026, 9:00 AM CDT
- Location
- Monticello, IL
- 515 Old Timber Rd, 61856
- Type
- TRAIL
Sign up and verify details on the organizer’s official page.
At a glance
Run a trail/road half or 10K, or a nighttime 5K, all while supporting Make-A-Wish Illinois and Robert Allerton Park.
- For a Cause
For a CauseWho it's for
- Beginner Friendly
- For a Cause
Beginner Friendly
For a CauseGreat for: beginners, cause-driven runners
The Allerton Races offer a unique blend of trail and road running in Monticello, IL. Choose from a Half Marathon, 10K Run/Walk, or experience the special nighttime Trail-Glo 5K Run/Walk. This event proudly supports Robert Allerton Park and, for its 14th consecutive year, raises funds for Make-A-Wish Illinois, helping to grant wishes for families. Runners can become a 'Wish Warrior' with a donation, receiving a special logo on their race T-shirt.
What to expect
- Enjoy a mix of trail and road surfaces across the Half Marathon and 10K distances.
- Experience a unique evening adventure with the Trail-Glo 5K Run/Walk.
- Participate in a race dedicated to supporting Make-A-Wish Illinois and Robert Allerton Park.
Standout details
- Nighttime Trail-Glo 5K Run/Walk
- Benefitting Make-A-Wish Illinois
- Support Robert Allerton Park
- Become a 'Wish Warrior' with donation perk
Auto-drafted from the public listing — confirm details on the official event page before signing up.
Distances & registration
6 optionsRegistration for all distances is through the official signup link above.
- 5K
Sat, Apr 11, 8:30 PM CDT · From $27.50
Opens Oct 26, 2025, 7:29 PM CDT · Closes Apr 11, 2026, 4:30 PM CDT
- 5K
Sat, Apr 11, 8:30 PM CDT · From $27.50
Opens Oct 26, 2025, 5:49 PM CDT · Closes Apr 11, 2026, 7:59 PM CDT
- 10K
Sun, Apr 12, 9:00 AM CDT · From $35.98
Opens Oct 26, 2025, 7:29 PM CDT · Closes Apr 12, 2026, 5:00 AM CDT
+ 3 more optionsHide
- 10K
Sun, Apr 12, 8:00 AM CDT · From $32.80
Opens Oct 26, 2025, 5:49 PM CDT · Closes Apr 11, 2026, 4:00 AM CDT
- 13.1 Miles
Sun, Apr 12, 9:00 AM CDT · From $41.28
Opens Oct 26, 2025, 7:29 PM CDT · Closes Apr 12, 2026, 5:00 AM CDT
- 13.1 Miles
Sun, Apr 12, 8:00 AM CDT · From $35.98
Opens Oct 26, 2025, 5:49 PM CDT · Closes Apr 11, 2026, 4:03 AM CDT
The course
- Flat
Vibe Check
Steady Effort
Steady Effortlonger distance
half marathon distance, flat area, typically mild weather
Based on typical seasonal and area patterns — not a course map or official forecast.
From the organizer
Trail/Road Half Marathon, 10K Run/Walk, or nighttime Trail-Glo 5K Run/Walk, benefitting Robert Allerton Park! Trail-Glo 5K start time is 8:30PM 11 April. Half Marathon and 10K start time is 9:00AM 12 April.
More race info at our website!
Help us help Make-A-Wish families! For our 14th consecutive year, Allerton Races is fundraising for Make-A-Wish Illinois. Be a "Wish Warrior" by donating $10 or more, and you'll get a special logo on the sleeve of your race T! (If you register with a race T) Donate to Make-A-Wish Illinois by clicking HERE !
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