
From the Organizer
The self-timed 20 mile run is a great opportunity to prepare for the Chicago Marathon. This run is designed to help runners build endurance and strength for the marathon by simulating the distance and atmosphere of the race. As the name suggests, the run covers a distance of 20 miles and will feature well-marked course with aid stations along the way to provide runners with hydration and support.
It's a great chance to practice fueling strategies, hydration, and gear choices before the big day. With a supportive and encouraging atmosphere, this race will help runners build confidence and provide an opportunity to bond with fellow runners who are also preparing for the Chicago Marathon.
NEW OPTION - We've received feedback around having shirts. You now have an option to buy a shirt! Orders need to be in by September 4th in order to have by packet pickup (pickup available after as well) We'll host a celebration with refreshments at the finish line!
Free and easy parking near Picnic Grove 27.
Events
Weather
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
74°
Typical Low
56°
Chance of Rain
30%
Based on US Climate Normals data from Chicago Ohare Intl Ap, 5 mi from the venue.
Host City
Population
32,132
as of 2023
City Elevation
689 ft
Nearest Airport
ORD
Chicago O'Hare International Airport · 4 mi
Time Zone
Central Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Busse Woods 20 Miler - 7:00a.m., put it on the calendar, and turn “someday” into a start date.
94
Days to train
Coming Up
Margarita Mayhem 5K (Chicago Area)
Less than a mile away
Christmas in July Half Marathon and 5K (Chicago area)
Less than a mile away
Heatwave Half Marathon - Greater Chicago
Less than a mile away
I’m Here for the Food (Pantry) 5k
Less than a mile away
From Endurance Grid
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.
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)
Busse Woods 20 Miler - 7:00a.m.
Sep 19, 2026