From big races to Saturday morning group runs—find half marathon events and connect with the local endurance sports community.
Sat, May 16, 2026
5k 10k Half Marathon Kids Run Trail
26015 E Main Dr, Sammamish, Washington, 98074, United StatesUSA Swimming Club. 373 members.
Swim
Contact: christopherw@plateau.com
25625 E Plateau Dr, Sammamish, Washington, 98074, United StatesTriathlon
27206 SE 10th Street, Sammamish, Washington, 98075-5901, United States