Seacoast Half Marathon
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Event details
The Seacoast Half Marathon is an annual half marathon organized by the Seacoast Half Marathon organization in Portsmouth, New Hampshire. The event is based at Portsmouth High School, Portsmouth, NH 03801, and the course passes through the coastal communities of Portsmouth, Rye, and New Castle. The race is presented as a local, charitable event; the organizer states that 100% of net proceeds go to a nonprofit.
Distance
- Half marathon
Charity and history
The event marked its 20th annual running and, since 2006, has reported raising nearly $2 million for nonprofits that serve coastal New Hampshire and Maine. The 2025 race raised $118,000 for The Birchtree Center, identified as the state’s only full-time, year-round school for children with autism. Sponsors listed for recent editions include M&T Bank, Auger Building Company, Exeter Hospital, and several regional partners and in-kind providers. Visit the organization's website for the most recent information.
