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 Marathon Calendar
Browse all Illinois Half Marathons in 2026 and 2027 by month and by city below. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and how to sign up.
We dedicate hours every month searching for races to include in the Illinois Half Marathons calendar. If you happen to see any half marathon not included, contact us at info@halfmarathons.net to submit your race.
Filter Illinois Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Filter Illinois Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
May 2, 2026
1-100 runners
Frankfort, Illinois
- 10K, Half Marathon, Trail
May 2, 2026
100-500 runners
Wheaton, Illinois
- 10K, 5k, Half Marathon, Road
May 3, 2026
500-1000 runners
Schaumburg, Illinois
- Half Marathon, Marathon, Trail
May 3, 2026
100-500 runners
Geneva, Illinois
- 10K, Half Marathon, Road
May 9, 2026
100-500 runners
Ottawa, Illinois
- 5k, Half Marathon, Marathon, Trail
May 10, 2026
1-100 runners
Moline, Illinois
- 5k, Half Marathon, Road
May 17, 2026
1,000-10,000 runners
Chicago, Illinois
- 10K, Half Marathon, Road
May 23, 2026
100-500 runners
Vienna, Illinois
- 10K, 5k, Half Marathon, Road
May 30, 2026
1-100 runners
Wheaton, Illinois
- 10K, 5k, Half Marathon
May 30, 2026
100-500 runners
Makanda, Illinois
- Half Marathon, Trail
May 31, 2026
1-100 runners
Highland Park, Illinois
- 5k, Half Marathon, Road
June 6, 2026
1-100 runners
Charleston, Illinois
- 10K, 5k, Half Marathon, Road
June 7, 2026
1,000-10,000 runners
Chicago, Illinois
- Half Marathon, Road
July 14, 2026
1-100 runners
Fulton, Illinois
- Half Marathon, Marathon, Road
July 18, 2026
500-1000 runners
Elk Grove Village, Illinois
- 5k, Half Marathon
August 1, 2026
1-100 runners
Mahomet, Illinois
- 5k, Half Marathon, Road
August 15, 2026
100-500 runners
Rockford, Illinois
- 5k, Half Marathon, Road
August 16, 2026
500-1000 runners
Anchorage, Alaska
- Half Marathon, Marathon, Road
September 5, 2026
1,000-10,000 runners
Naperville, Illinois
- Half Marathon, Trail
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 2026?
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?
