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Marathons found in Illinois in May

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Marathons in Illinois in May 2026

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

Race Calendar: Marathons found in May

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F^3 Cap Sauers Trail Marathon & 10 Mile

Palos Hills, Illinois
09 May 26
$64.85 - $70.15
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Chicagoland Spring Marathon, Half Marathon & 10K

Schaumburg, Illinois
03 May 26
$45.99 - $179.99

F^3 Cap Sauers Trail Marathon & 10 Mile

Palos Hills, Illinois
09 May 26
$64.85 - $70.15
Showing 1-2 of 2 results