Allerton Park Trail Run
- Date
- October 25, 2026
- Distance
- 5.7 Mile Trail Run · 2 Mile Nature Walk · VIRTUAL 5.7 Mile Trail Run
From the Organizer
Second Wind Running Club welcomes you to the Allerton Park Trail Run!
Let's hit the trails! A good portion of the 5.7-mile course follows the Sangamon River which has proven quite challenging over the years. Runners may find hidden roots, ruts, sharp turns, and other obstacles. We donate a portion of the proceeds back to Allerton Park for trail maintenance or park enhancements. Our donations have been used towards a railing at a dangerous spot, trail erosion control, recycle bins, water fountain bottle filling station, a new café in the visitor's center, and more. We feel quite fortunate that the park allows us to bring so many into it and pound the trails!
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.
Want to receive a race shirt? Deadline to register and guarantee a shirt is Wednesday, October 14th, 2026.
Don't want a race shirt? No problem! Select 'no shirt' instead of a size from the drop-down box during registration.
If participating in this race will qualify you for the Monticello Triple Crown, you MUST register by Wednesday, October 14th, 2026.
The race ends in the meadow where you can gather with family and friends. With the race close to Halloween, we'd love to see costumes out on the trails! Stay after the race for the overall 5.7-mile trail run awards (top male, top female, top male masters, top female masters), age group awards (top 3 M/F; 19 and under, 20-29, 30-39, 40-49, 50-59, 60-69, 70+). The 2-mile nature walk is non-competitive and no awards will be given for this event. Door prizes and costume contest prizes will be given as well!
Registration is via this page only and will end promptly on race day, October 25th, at 8:30am.
Volunteers needed! Even if you register for either activity (Trail Run or Nature Walk) for Sunday October 25th, 2026, you can also volunteer. Responsibilities will vary based on the opportunity you sign up for. The Race Director, a volunteer captain, or team lead will be available to provide direction or guidance as needed. Other experienced volunteers can also provide insights and advice. Further instructions and possibly training as needed or requested will be provided closer to the day of the event.
For safety purposes, no dogs allowed on the trail run or the nature walk.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
61°
Typical Low
38°
Chance of Rain
34%
Based on US Climate Normals data from Champaign 9 Sw, 11 mi from the venue.
Host City
About Monticello, IL
Population
6,332
as of 2023
Elevation
657 ft
Nearest Airport
CMI
University of Illinois Willard Airport · 15 mi
Major Hub
IND
Indianapolis International Airport · 122 mi
Time Zone
Central Time
From Endurance Grid
A small town race. Lodging near the start could be limited, so book early.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Allerton Park Trail Run, put it on the calendar, and turn “someday” into a start date.
139
Days to train
- Race
- Allerton Park Trail Run
- Date
- October 25, 2026
Coming Up
More Running races near Monticello, IL
Tolono Twilight Trek 5K
5K
17 miles away
RUN WHITE and BOOM
7 miles away
Ring My Bell 2026
16 miles away
Freedom Celebration 5K Race and Youth Run
Youth
17 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Allerton Park Trail Run?
- Allerton Park Trail Run is a running race held in Monticello, Illinois on October 25, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Allerton Park Trail Run?
- Sunday, October 25, 2026 in Monticello, Illinois at Robert Allerton Park and Retreat Center, Monticello, IL. Check the event page for exact start times and wave schedules.
- How do I register for the Allerton Park Trail Run?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Allerton Park Trail Run
Oct 25, 2026