Downtown Seattle
Trail Running Calendar near Downtown Seattle 2026-2027
Explore the top trail runs near Downtown Seattle for 2026-2027! We've gathered 61 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
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.
Backyard ultra on Vashon Island with 6, 12 or 24 hour individual options and relays up to eight teammates, run as repeated 4.167 mile forest loops with a full aid station.
A loop endurance run at Green Lake Park in Seattle where runners complete as many 3.2 mile laps as possible in a 12 hour or 5 hour option.
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.
A multi-distance trail event in Port Gamble, WA offering 50K, 50M, 100K and 100M over eight 12.5 mile loops with two aid stations per loop.
May 2027
Spartan Event Weekend at Meadow Wood Equestrian Center on May 1 and 2 features 5 km and 10 km obstacle races, kids races, and an obstacle workshop.
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.
Trail races at Rattlesnake Ridge in Snoqualmie include 5K, 5.8 mile and a half marathon on single track with significant climbing and staffed aid stations.
Loop ultramarathon at Lake Youngs Watershed near Renton, WA offering 50k to 200 mile options on a 9.4 mile loop with 900 ft elevation per loop.
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.
June 2027
Timed three, six and twelve hour loop races on a flat 1.70 mile paved course around Lake Tye with aid stations, chip timing and awards.