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Half Marathons found in Illinois in Summer

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Half Marathons in Illinois in Summer 2025

Find A Race is the US's favourite event listings site. Check out our list of Summer 2025 Half Marathons in Illinois below.

Race Calendar: Half Marathons found in Summer

🚀Boosted

Sullivan Dash & Bash

Sullivan, Illinois
14 Jun 25
$12.10 - $54.50
🚀Boosted

Run Mahomet

Mahomet, Illinois
01 Aug 25 - 02 Aug 25
$16.90 - $64.60
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Sullivan Dash & Bash

Sullivan, Illinois
14 Jun 25
$12.10 - $54.50

Hoffman Estates Stars and Stripes Half Marathon, 10K & 5K

Hoffman Estates, Illinois
28 Jun 25
Free - $123.75

Christmas in July Half Marathon and 5K (Chicago area)

Elk Grove Village, Illinois
19 Jul 25
Free - $77.44

Stan's Donut Race

Chicago, Illinois
26 Jul 25
$27.49 - $59.29

Run Mahomet

Mahomet, Illinois
01 Aug 25 - 02 Aug 25
$16.90 - $64.60

RAMP River Run 3K, 5K, & 1/2 Marathon Run

Rockford, Illinois
16 Aug 25
Free - $80.50
Showing 1-6 of 6 results