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Seacoast Half Marathon

October 26, 2025 Portsmouth, NH 03801 US

Caring for the Coast, one step at a time!

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100% of the net proceeds from the Seacoast Half Marathon are donated to a Seacoast-area nonprofit organization. Since 2006, the Seacoast Half Marathon has raised over $1.6 million for these worthy nonprofits that serve coastal New Hampshire and Maine.

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