This event is in the past.It took place on July 19, 2026 at Seward Park.
SportsSports🚲Ride your bike into the park
🥽Bring your own goggles
📅Come Saturday for packet pickup
Seattle’s only triathlon takes over the shores of Lake Washington with sprint, super sprint, and kids' courses. This flat, fast event offers a picturesque urban race experience just minutes from downtown.
SportsSportsSeafair Triathlon
July 18 at 12:30pm - July 19
Seward Park, Seattle
At Seward Park
🚲Ride your bike into the park
🥽Bring your own goggles
📅Come Saturday for packet pickup
Seattle’s only triathlon takes over the shores of Lake Washington with sprint, super sprint, and kids' courses. This flat, fast event offers a picturesque urban race experience just minutes from downtown.
sprint triathlon
super sprint triathlon
kids triathlon
urban race course