Cedar River Half

Maple Valley, United States • 25 Apr 2026

The Cedar River Half will take place in Maple Valley on Saturday 25 April 2026. You can run between 5 and 10 kilometers. Visit the organization's website for the most recent information.

Race information

10 km
10k
5 km
Half Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

The Trio Trail Run – March offers a low-key trail running event at Frontier Park in Graham. Runners can choose between a two-loop 5K or a 2.5K course. Day-of registration is available, with a discount for participants 18 and under.

Join the Running Rugger 5K on March 14, 2026 in Seattle for a scenic run across the University of Washington campus, Rainier Vista and waterfront. All abilities welcome and proceeds support the UW Womxn's Rugby Club for gear, travel and inc..

A beachside trail run at Dash Point State Park near Federal Way offering 10K and half marathon loop courses through sandy shoreline and lush forest, a cupless race policy, limited park parking, and a short kids race.

The fifth annual A2 PT 5K is a family friendly 5K on the Titlow Trails in Tacoma that benefits the National Multiple Sclerosis Society. The event features music, refreshments, a post-run raffle, race T-shirts for early registrants, and an o..