Trail Running Calendar Washington 2026-2027

The Trillium Trail Run will take place in Bainbridge Island on Saturday 8 May 2027. You can run between 5 and 10 kilometers.

Trail races and a weekend festival in Leavenworth, WA on May 29, 2027 with 5k, 25k and 50k options plus family and youth events.

Timed loop races at Magnuson Park near Lake Washington offer 13 hour and 7 hour solo formats with chip lap counting, a stocked aid station and a vegetarian post race meal, with proceeds supporting the Sri Chinmoy Marathon Team peace run.

The L.O.S - Last One Standing will take place in Spokane on Saturday 29 May 2027. You can run 4 miles.

A USATF-sanctioned trail event on Vashon Island on June 5, 2027 offering a 50K and shorter looped races over varied single-track and park trails. Field limited to 200 and proceeds support island youth athletics.

A weekend of mountain trail races at Frater Lake in Colville National Forest organized by Kaniksu Ultras, featuring a 100K, a 50 mile course, relay and ruck events, 26.2 and shorter single track races with significant elevation gain.

A trail running festival at Jasper Mountain Reserve near Dayton WA with a 4 person relay, half marathon, full marathon, and a family run on single track loops. Race registration includes on site camping and parking.

The The Longest Light 101 will take place in Spokane on Saturday 19 June 2027. You can run between 6 and 101 miles.

The Sisu 100 PNW will take place in Crystal Mountain on Friday 25 June 2027. You can run 100 miles.

SISU 24 PNW is a 24 hour choose your own adventure trail event at Camp Sheppard near Mount Rainier. Participants pick from six marked out and back trails, complete optional side quests, camp overnight, and earn points and awards.