Bellingham Bay Marathon

SEP
20
2026
Road races in Bellingham held the last Sunday of September offering marathon, relay, half marathon, 10K and 5K with bay and mountain views and local youth fundraising.
Sun 20 Sep 2026
Marathon Half Marathon 10 kilometers 5 kilometers

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Bellingham Bay Marathon

The Bellingham Bay Marathon is a group of road races held in the city of Bellingham on the last Sunday of September. The events were founded in 2007 by the Bellingham Bay Swim Team and are described as designed by runners for runners and walkers. The event offers multiple race options and a marathon relay. The course includes views of Bellingham Bay, the San Juan Islands, and the North Cascades mountains.

Race proceeds support local youth programs. The event states that 100% of net proceeds benefit Whatcom County youth nonprofit organizations. The race lists community partners and sponsors that include local health systems, tribal and community organizations, and credit unions.

Practical information such as registration and detailed course maps is provided through separate race info and registration pages. Results and photos from past editions are maintained for reference. The event also maintains information on volunteering opportunities and accessibility practices to support participants with disabilities.

Distances Visit the organization's website for the most recent information.

  • Full marathon
  • Marathon relay
  • Half marathon
  • 10K
  • 5K
Marathon
Full Marathon
Marathon
Marathon – Relay
Half Marathon
Half Marathon
10 km
10k
5 km
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