Seafair Triathlon
Jul 19, 2026
Seattle, WA
Sprint/YouthDistance
Sprint
Distance
Super Sprint
Distance
Youth
Event Details
About the race
"Every athlete starts somewhere. Start here."
"Bring your training to one of the most scenic places in WA."

Welcome to the Seafair Triathlon! Seattle's only triathlon will once again 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.
Race Organizer
Training Phase
20w to goBase
Increase volume gradually. Focus on swim technique and weekly long rides.
BaseBuildPeakTaperRace
Frequently Asked Questions
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