Seacoast Half Marathon

OCT
25
2026
A charitable half marathon in Portsmouth, NH on October 25, 2026, with a mostly flat scenic course and proceeds benefiting Krempels Brain Injury Center.
Sun 25 Oct 2026
Half Marathon

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Seacoast Half Marathon

The Seacoast Half Marathon is scheduled for October 25, 2026 in Portsmouth, New Hampshire. The race starts and finishes at Portsmouth High School and follows a course through the coastal communities of Portsmouth, Rye, and New Castle.

The course is described as fast and mostly flat with a few rolling hills. Runners pass woodlands, salt marshes, the rugged coastline, working waterways, historic homes, and Portsmouth Harbor, offering a range of coastal and town scenery.

This race is organized as a local charitable event. One hundred percent of net proceeds go to nonprofit causes; the 2026 beneficiary is Krempels Brain Injury Center. Krempels provides evidence based programming, shared experiences, and community support for people living with acquired brain injury, with a focus on respect and helping each person achieve maximum potential and satisfaction with life after injury.

The event is an annual half marathon and has a history of fundraising for area nonprofits. Participants receive a long sleeve race shirt and a medal. The event also includes a team competition with awards for the fastest and the largest teams. Volunteers are offered a Seacoast Half shirt, coffee, and other treats for their work on and off course. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
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