Get Ready!

Join us on Oct. 25, 2026, for the 2026 Seacoast Half Marathon. The scenic course winds through the historic coastal communities of Portsmouth, Rye, and New Castle, offering stunning views of New Hampshire’s Seacoast. In a race calendar crowded with corporate, for-profit events, the Seacoast Half is the only purely local, purely charitable race of its kind — and has raised nearly $2 million for worthy area nonprofits.

2026 Beneficiary

This year's beneficiary is Krempels Brain Injury Center, a nonprofit organization dedicated to improving the lives of people living with acquired brain injury through evidence-based programming, shared experiences, and support in a welcoming community.

Krempel's innovative programming is geared toward the unique and varied needs of brain injury survivors. The Krempels community is characterized by a deep and abiding respect for each individual, and the goal of helping each person achieve their maximum potential and satisfaction with life. 

Sign up now!

Registration for the 21st annual Seacoast Half Marathon is now open! The course is fabulous — fast and mostly flat with a few rolling hills. Starting and finishing at Portsmouth High School, it offers striking views of woodlands, salt marshes, the rugged coastline, working waterways, historic homes, and Portsmouth Harbor. Plus, every participant will receive a long-sleeve race shirt and a medal!

Become a Fundraiser

When you fundraise for Krempels, you are helping to change the life of a brain injury survivor. Becoming a fundraiser is easy. You can set it up when you register or click this button to get started.

Volunteer

Wanna help out with the race? We’re looking for volunteers to fill a variety of on- and off-course roles. There are plenty of options with different start times and lengths, so you can pick one that works best for your schedule. Click the button to learn more!

Questions or suggestions?