Lace up for an unforgettable journey along the stunning New Hampshire Seacoast at the New Castle 10K, taking place on Sunday, April 26, 2026. This scenic 10K road race, starting and finishing at Great Island Common in New Castle, NH, is considered by locals to be a true "rite of passage" for area runners. The course promises breathtaking waterfront vistas, including the historic Portsmouth Shipyard, the naval prison, and the picturesque Piscataqua River, all while passing charming lobster boats, sailboats, and the iconic lighthouse. You'll even traverse four distinctive bridges, making for a truly memorable and visually rich experience.

As you navigate the renowned "New Castle Loop," expect a well-supported event designed with runners in mind. Two aid stations are strategically placed approximately every two miles, offering water to keep you hydrated. At the finish line, celebrate your accomplishment with fresh bananas, snacks, and yogurt. Typical race day conditions in late April offer ideal running weather, with historical highs around 61°F and lows around 40°F, and only a 17% chance of precipitation, ensuring a comfortable race environment. Capture every moment with complimentary digital race photos and a finisher video, adding lasting keepsakes to your achievement.

The New Castle 10K isn't just a race; it's an experience that combines a fantastic road course with unparalleled coastal beauty. Whether you're chasing a personal best or simply soaking in the scenery, this event by Millennium Running provides a fantastic atmosphere and a truly unique opportunity to explore one of New England's most charming coastal communities.