Lake Whatcom Triathlon 2026

The Lake Whatcom Triathlon has athletes swim in Lake Whatcom, bike on country roads, and run on a forested trail with waterfalls. This multi-sport event in Bellingham occurs in July and offers Olympic, Sprint, Aquabike, and Youth Splash and Dash distances. Racers can compete individually or as a relay team. The course presents challenges beyond a simple flat-and-fast route; one participant noted choppy swim water, while another found the bike course hillier than anticipated. The event attracts adult triathletes, relay teams, aquabike competitors, and children. Volunteers and course markings consistently receive positive feedback from previous participants. The race organizers also highlight Bellingham as a focal point, aiming to support local businesses and organizations while showcasing the area's natural features and recreational community to visiting athletes.