Seacoast Half Marathon

The Seacoast Half Marathon is a celebrated annual event, marking its 20th edition in 2025. Set against the stunning backdrop of New Hampshire’s historic Seacoast, the race begins and ends at Portsmouth High School, taking participants through the charming coastal towns of Rye and New Castle. Each runner receives a long-sleeve shirt and a medal, and importantly, 100% of the net proceeds benefit a local nonprofit organization, the Birchtree Center, which supports individuals with behavioral challenges and autism.

This event not only promotes fitness but also fosters community support and engagement. Visit the organization's website for the most recent information.