Seafair Triathlon

Get ready for an exciting day of athleticism and community spirit at the 2025 Seafair Triathlon, happening on Sunday, July 20th, 2025, in the stunning Seward Park, Seattle. This vibrant event, set against the breathtaking backdrop of Lake Washington and the iconic downtown skyline, invites triathletes of all levels to experience a flat and fast course designed for success. Participants can choose between a sprint distance triathlon or a super sprint distance, making it accessible for beginners and seasoned competitors alike. With a protected swimming area, a thrilling bike ride on closed roadways, and a scenic run through the beautiful park, this race promises an unforgettable experience for over 1,500 health enthusiasts. Plus, the event includes a Kids Triathlon, ensuring that there’s a fun and challenging distance for every family member. Don’t miss out on this premier Pacific Northwest triathlon—mark your calendars and join us for an action-packed day of sports and camaraderie!