Upcoming Half Marathons in Illinois

Endurance Grid lists sixty-four half marathons in Illinois, from September 2026 to August 2027 across 22 cities.

64
Races
22
Cities
14
Sports

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Running races in Illinois

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Frequently Asked Questions

How many half marathons are in Illinois?
Endurance Grid's Race Calendar lists 64 upcoming half marathons in Illinois, in 22 cities, from September 2026 to August 2027.
How long is a half marathon?
A half marathon is a running race where athletes run 13.1 miles long (21.1 kilometers) for time.
Which Illinois cities host half marathons?
Half marathons in Illinois are held in Chicago, Greater Chicago, Elk Grove Village, Lemont, Shorewood, Belleville, Benton, Bloomington, Decatur, and Galena, plus 12 other cities.
What other race distances are available in Illinois?
Beyond half marathon, Illinois races cover a wide range of distances. Illinois also has 5Ks, 10Ks, and marathons for running races. Additionally, Endurance Grid's Race Calendar also covers other sports, with adventure, aquabike, road cycling, duathlon, gravel, mountain bike, obstacle course, rucking, running, swimming, swimrun, trail running, triathlon, and ultra races of various distances.