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Half Marathons found in Massachusetts in September

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Half Marathons in Massachusetts in September 2025

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

Race Calendar: Half Marathons found in September

Half Marathon-by-the-Sea

Manchester-by-the-Sea, Massachusetts
14 Sep 25
$88.48

PortRun Half Marathon & 5K

Newburyport, Massachusetts
28 Sep 25
$33.24 - $88.48
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