
Allerton Park Trail Run
Monticello, IL
Sun, Oct 25, 2026
In 38 days · Sun, Oct 25, 2026
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Sunday, October 25th, 2026
Robert Allerton Park and Retreat Center, Monticello IL
44–61°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2025
45–57°F
dry
2024
52–70°F
rain
2023
59–74°F
rain
2022
50–67°F
rain
2021
44–64°F
dry
2020
43–50°F
dry
2019
45–53°F
dry
2018
41–56°F
dry
2017
37–52°F
dry
2016
43–59°F
dry
Best months to race in Illinois →
About this race
Race Overview
Second Wind Running Club welcomes you to the Allerton Park Trail Run!
Course Details
- Distance: 5.7 miles
- Path: A good portion of the course follows the Sangamon River, presenting numerous challenges.
- Obstacles: Runners may encounter hidden roots, ruts, sharp turns, and other obstacles.
- Contribution: Proceeds help with trail maintenance and park enhancements.
Virtual Option
Can't join us on race day 10/25/26? Sign-up for the VIRTUAL option instead! Please note that you will not be eligible for any age-group awards. Virtual results can be entered from 10/25/26 through 10/31/26.
Race Shirt Information
- Shirt Guarantee: To guarantee a shirt, register by Wednesday, October 14th, 2026.
- No Shirt Option: Select 'no shirt' instead of a size during registration.
- Triple Crown Qualification: To qualify for the Monticello Triple Crown, register by October 14th, 2026.
Awards and Activities
- Gathering: The race ends in the meadow for family and friends to enjoy.
- Costumes: Costumes are encouraged out on the trails!
- Awards: Overall awards for top male, top female, top male masters, and top female masters.
- Age Group Awards: Top 3 M/F in various age categories (19 and under, 20-29, 30-39, 40-49, 50-59, 60-69, 70+).
Registration Details
Registration is via this page only and will end promptly on race day, October 25th, at 8:30am.
Volunteer Opportunities
Volunteers are needed! If you register for the trail run or nature walk on October 25th, you can also volunteer. Responsibilities will vary based on your sign-up opportunity. Further instructions and possibly training as needed or requested will be provided closer to the event.
Safety Guidelines
For safety purposes, no dogs are allowed on the trail run or the nature walk.
Additional Information
Learn more about the event and register at: Allerton Park Trail Run.
Course map
Hotels for race weekend
Live prices near the start line, Oct 24 – 26, 2026.
Train with a club
Run clubs near Monticello to train with before race day.
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