Harborside Half Marathon & 5K

Anchors away, New England! The 10th Annual Harborside Half Marathon 5K returns to Newburyport, MA on November 9, 2025 for another race past iconic New England waterscapes. Join thousands of runners through the picturesque fall scenery on the half marathon or 5K courses. Soak in the crisp autumn air all the way to the finish line, where a post-race party featuring pizza, snacks, and complimentary craft beer (21+) will be waiting for you. This event sold out a month early last year, so don’t miss your chance to join the fun in 2025—Register today!