Escape the Rock triathlon on Mercer Island set for Sept. 8

The 17th annual Seattle Escape the Rock triathlon will be held on Sunday, Sept. 8, on Mercer Island.

The race will take place at Luther Burbank Park on the Island, starting at 8 a.m. with the half-mile swim in Lake Washington. Racers will then take off on an 8.5-mile bike ride that crosses the I-90 express lanes, before finishing with a 2.5-mile run through the streets of the Island.

“The name Enviro-Sports means that we’re all about putting on events in the most beautiful locations imaginable,” said David Horning, the Enviro-Sports race producer. “The draw of Mercer Island, the I-90 floating bridge, and the beauty of the surrounding area are just too great for us to ignore.”

This year the Mercer Island High School swim team will be on hand volunteering at the event, and at the athlete check-in on Saturday, Sept. 7, at the Mercer Island Community and Event Center.

To learn more about participating in the race, visit

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