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Marathons found in Illinois in March

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Marathons in Illinois in March 2026

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

Race Calendar: Marathons found in March

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Rend Lake Marathon

Barren township, Illinois
Sat 28 Mar 26
$55.16 - $108.64
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Rend Lake Marathon

Barren township, Illinois
Sat 28 Mar 26
$55.16 - $108.64
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