Register for the 2020 Seafair Triathlon

Welcome to the 2020 Seafair Triathlon! 

Each participant of the Seafair Triathlon, with entry, will receive a participant shirt, finisher medal, and personalized bib! 

Seattle's only triathlon will take place on the shores of Lake Washington at Seward Park. Offering participants multiple disciplines on a flat, fast and picturesque triathlon course in the shadows of downtown Seattle. This race is a must do for all triathletes in the northwest. 

The event offers participants a unique opportunity to participate in a sprint distance triathlon or super sprint distance in an urban setting. Swimming in a protected cove, riding on closed roadways and running through Seward Park, this is the Pacific Northwest’s premier triathlon. 

Offering a Kids Triathlon as well, there is a distance for everyone in the family at the Seafair Triathlon! Join us in 2020 at the Seafair Triathlon with over 1,400 health enthusiasts taking part in the event.

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