West Seattle
Trail Running Calendar near West Seattle 2026-2027
Explore the top trail runs near West Seattle for 2026-2027! We've gathered 58 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
March 2027
Trail race at Bridle Trails State Park on March 20, 2027 offering 5k, 10.55 km, half marathon and marathon on mostly smooth, gently rolling forest trails with aid stations.
Trail races at Dash Point State Park in Federal Way, WA, featuring half marathon and 10 km looped courses through beach and forest; registration opens Sep 20, 2026.
Test your endurance at Green Lake Park in Seattle with 5 hour and 12 hour timed races on a scenic 3.2 mile groomed dirt loop.
April 2027
Trail races at Squak Mountain State Park near Issaquah, WA, on April 17, 2027, featuring 50K, half marathon, 12K options, a brunch run, and a kids race.
May 2027
A two-day Spartan obstacle race weekend at Meadow Wood Equestrian Center near Snohomish, WA featuring a Sprint 5 km with 20 obstacles, Super 10 km with 25 obstacles, and kids races.
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 Regional Park in Sammamish WA featuring a half marathon, 10K, 5K and kids race on mostly flat, rooty forest trails.
Timed loop races in Magnuson Park near Lake Washington with 13 hour and 7 hour solo events, chip lap counting, a stocked aid station, a t shirt and a vegetarian post race meal.
June 2027
Test your endurance at Lake Tye with 12, 6, and 3 hour timed races on a flat paved loop featuring full aid stations and post race food in Monroe Washington.
A 50 mile team relay from the foothills of Mount Rainier to Tacoma's Ruston Way waterfront, run by teams of 2, 3, 4, or 6 with a waterfront finish festival.
July 2027
Three consecutive 5K trail segments in Puyallup on July 24, 2027 with a 45 minute cutoff per segment and mandatory RaceJoy tracking.
August 2027
Timed 3, 6, 12 and 18 hour loop races plus a 30 minute kids event on a scenic two mile loop through Lincoln Park in Seattle.
A 24 hour event in Bonney Lake where a new 5K starts every hour and participants run solo or with teams to total as many 5Ks as they can.
September 2027
Summer Spirit Run at Magnuson Park in Seattle offers 5k, 10k, 15k plus a Kids Dash and an Obstacle Dash on a USATF certified 5k loop.