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Half Marathons found in Illinois in May

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Half Marathons in Illinois in May 2026

Find A Race is the US's favourite event listings site. Check out our list of May 2026 Half Marathons in Illinois below.

Race Calendar: Half Marathons found in May

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Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois
03 May 26
$45.99 - $179.99
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Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois
03 May 26
$45.99 - $179.99
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