West Seattle
Trail Running Calendar near West Seattle 2026-2027
Explore the top trail runs near West Seattle for 2026-2027! We've gathered 64 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
January 2027
Trail races at Soaring Eagle Regional Park in Sammamish offering 5 mile and half marathon options on technical singletrack through forest and wetlands.
February 2027
March 2027
Trail races at Bridle Trails State Park in Kirkland, WA offering 5k, 10k, Half Marathon and Marathon on forest trails with multiple aid stations.
A beachside trail run at Dash Point State Park featuring 10K, half marathon and a free kids race on non technical singletrack through forest and shoreline.
A backyard ultra on Vashon Island with hourly 4.167 mile laps, six, twelve, and twenty four hour options and relay teams up to eight members.
Timed endurance event at Green Lake Park where runners complete as many 3.2 mile laps as possible in 12 hour or 5 hour formats.
April 2027
Hilly trail races at Lord Hill Regional Park near Snohomish, WA offering 5K, 10K and half marathon with steep Pipeline Trail climbs and staffed aid stations.
Forest trail races at Squak Mountain near Issaquah offering 12K, half marathon, 50K and a free kids loop, all on technical singletrack with significant elevation gain.
Multi loop trail event in Port Gamble WA offering 100 mi, 100K, 50 mi and 50K with stocked aid stations, GPX route, and a 30 hour time limit.
May 2027
Obstacle course weekend at Meadow Wood Equestrian Center near Snohomish with Sprint 5 km 20 obstacles, Super 10 km 25 obstacles, and kids races on May 1 and 2, 2027.
A multi-route trail event on Tiger Mountain with three summit loops, offering a 50k option plus The Ascent, Big Cat, and The Ambush over a May weekend in Issaquah.
Scenic 10K, 5K and kids 1-mile runs from Battle Point Park along the Forest to Sky Trail on Bainbridge Island with proceeds supporting local trail development.
Trail races at Soaring Eagle Park in Sammamish with 5K, 10K, half marathon and a kids' race on mostly flat, rooty forest trails.
Timed loop races in Magnuson Park with 13 hour and 7 hour solo events on a 1.54 mile scenic loop, chip lap counting, a stocked aid station, t shirt and vegetarian meal.