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Half Marathon Races in Illinois

Explore Half Marathon races in Illinois during September 2025.

By Month

By Race Type

By City

Top Events

Naperville Trails Half Marathon & 10k

Naperville Trails Half Marathon & 10k

10KHalf-Marathon

Wheaton, IL

Date TBD

8:00 AM CDT

Belleville Main Street Marathon & Half Marathon

Belleville Main Street Marathon & Half Marathon

Half-Marathon

Belleville, IL

Date TBD

7:00 AM CDT

Stone Bridge Half Marathon And 5k

Stone Bridge Half Marathon And 5k

5KHalf-Marathon

Roscoe, IL

Date TBD

7:30 AM CDT