You can run Illinois half-marathon events in Belleville, Bloomington, Champaign, Charleston, Chicago, Crystal Lake, Deer Creek, Elk Grove, Elk Grove Village, Flossmoor, Frankfort, Fulton, Galena, Geneva, Highland Park, Hoffman Estates, Lincolnshire, Long Grove, McHenry, Moline, Naperville, Roscoe, Schaumburg, and St. Charles.
Illinois Half Marathons in September
This is the calendar of all the Illinois half marathons in September. On these race calendars, not only will you be able to search the basics of cities and dates, but you’ll also be able to find September Illinois half marathons by difficulty, scenery, race size, and attributes like whether it’s pet-friendly, stroller-friendly, or has a great finisher party.
If you can’t find the half marathon you’re looking for in Illinois in September, it’s possible the race has not updated their date to the current year or has switched months. If you know a race belongs on this calendar or have any edits you’d like to suggest for an existing race in Illinois in September, you can email us [email protected].
Filter Illinois Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Filter Illinois Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Featured Race
August 17, 2025
500-1000 runners
Anchorage, Alaska
- Half Marathon, Marathon, Road
Featured Race
June 1, 2025
1-100 runners
Chicago, Illinois
- 5k, Half Marathon, Road
September 6, 2025
100-500 runners
Flossmoor, Illinois
- Half Marathon, Road
September 6, 2025
1,000-10,000 runners
Naperville, Illinois
- Half Marathon, Trail
September 21, 2025
500-1000 runners
St Charles, Illinois
- 5k, Half Marathon, Marathon, Road
September 27, 2025
100-500 runners
Chicago, Illinois
- 10K, 5k, Half Marathon, Road
September 27, 2025
100-500 runners
Belleville, Illinois
- Half Marathon, Marathon, Road
September 27, 2025
100-500 runners
McHenry, Illinois
- 10K, 5k, Half Marathon, Trail
September 27, 2025
1-100 runners
Roscoe, Illinois
- 5k, Half Marathon, Trail
September 28, 2025
1,000-10,000 runners
Chicago, Illinois
- 5k, Half Marathon, Road
September 28, 2025
100-500 runners
Moline, Illinois
- 5k, Half Marathon, Marathon, Road
Running in Illinois
FAQ
What are the most popular Illinois half marathons?
The most popular Illinois half marathon is the Bank of America Chicago 13.1 in 2023 had over 5,000 finishers. Followd by the Life Time Chicago Spring Half in 2024 with 4,828 finishers. And then the Christie Clinic Illinois Race Weekend half marathon with 2,179 finishers.
What are the best Illinois half marathons for beginners in 2024?
When it comes to best half marathons in Illinois for beginners, we recommend the Bank of America Chicago 13.1 for it’s race production and crowds, the Life Time Chicago Spring for the prettiest course through downtown Chicago and along Lake Michigan, and the Quad Cities Half Marathon in Moline because of it’s flat, scenic course.
Which Illinois cities have half marathons?
