Bellingham Bay Marathon 2025
September 21, 2025
The Bellingham Bay Marathon, Half Marathon, 10K, and 5K are a group of races designed by runners for runners and walkers. Founded in 2007 by the Bellingham Bay Swim Team, BBM delivers a fun, highly personal, authentic race experience. 100% of net proceeds benefit Whatcom County youth non-profit organizations – for further information, please visit our Beneficiaries page.