Bellingham Bay Marathon

Get ready for an exhilarating day of running at the Bellingham Bay Marathon on Sunday, September 21st, 2025! Set against the picturesque backdrop of Bellingham, Whatcom, this event features a variety of race distances to suit all fitness levels, including a full marathon, half marathon, 10K, and 5K. Whether you're a seasoned marathoner or a casual walker, you'll find a welcoming atmosphere designed by runners, for runners. Since its inception in 2007, the Bellingham Bay Marathon has fostered a spirit of community and fun, with 100% of net proceeds supporting local youth non-profit organizations, including the Whatcom Football Club Rangers and Bellingham Bay Swim Team. Join us for a day of camaraderie, purpose, and unforgettable memories!