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Half Marathons found in Illinois in October

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Half Marathons in Illinois in October 2025

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

Race Calendar: Half Marathons found in October

πŸš€Boosted

Run Stephenson County

Orangeville, Illinois
Sat 18 Oct 25
$54.00 - $85.80
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International Sloth Day Run 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
Sat 18 Oct 25
$32.80 - $52.94
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Spooky Sprint - Greater Chicago

Shorewood, Illinois
Sat 18 Oct 25
$20.83 - $73.94

Run Stephenson County

Orangeville, Illinois
Sat 18 Oct 25
$54.00 - $85.80

Chicago Fall Classic Half Marathon, 10K & Hot Cider Hustle 5K

Chicago, Illinois
Sat 18 Oct 25
$14.94 - $135.00

Galena River Fall Half Marathon & 8k

Galena, Illinois
Sat 25 Oct 25
$80.99

Riverview Ramble Half Marathon

Mount Carmel, Illinois
Sat 25 Oct 25
$38.65 - $70.45

Haunted Halloween Half Marathon & 5km

Chicago, Illinois
Sun 26 Oct 25
$64.85 - $101.95

Tri-State Warrior Run

Quincy, Illinois
Sun 26 Oct 25
$11.60 - $48.70

Run Against Breast Cancer 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
Sat 18 Oct 25
$32.80 - $52.94

International Sloth Day Run 5K/10K/13.1 CHICAGO/EVANSTON

Chicago, Illinois
Sat 18 Oct 25
$32.80 - $52.94
Showing 1-9 of 9 results