West Seattle
Trail Running Calendar near West Seattle 2026-2027
Explore the top trail runs near West Seattle for 2026-2027! We've gathered 45 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
Timed loop endurance event in Lincoln Park Seattle with 3, 6, 12, and 18 hour options, kids Loopy Races, team competition, and a central festival style aid area.
A 24 hour series of hourly group 5K runs at Kearin Family Farm in Bonney Lake with camping, food, music, and a medal and T shirt showing laps completed.
Join this summer event at Magnuson Park in Seattle featuring traditional road races and an obstacle dash. Choose from distances ranging from a kids 400m to a 15k run in a beautiful Pacific Northwest setting.
September 2026
Multi day ultrarunning festival near Bonney Lake WA offering looped 3.2 mile laps, distances from 6 hour to 100 mile, centralized aid and on site camping.
A point to point marathon and half marathon on the Palouse to Cascades Trail in North Bend, WA, featuring downhill profiles, a Snoqualmie Tunnel section, lake views, USATF certification and timed race services.
Timed trail event at McCormick Forest Park on September 12, 2026, with 24 hour, 12 hour day, 12 hour night and 6 hour options on a 2.25 mile loop.
USATF certified marathon and half in North Bend WA on September 13 2026 with an alternate mostly downhill rail trail course and about 1,000 feet net elevation drop.
A timed stair-climb at T-Mobile Park where participants tackle either 900 or 1,800 stairs to raise funds for the Cystic Fibrosis Foundation. Climbers start in waves by self-identified pace and join an official after party.
Two days of Spartan obstacle racing near Monroe WA at Meadow Wood Equestrian Center with Sprint 5 km, Super 10 km, Beast 21 km, kids races, a 4 hour Hurricane Heat and spectator access.
A fantasy themed 5K walk and run at Magnuson Park with mixed trail surfaces, Villain Zones, and a Heroes Village; costumes encouraged and leashed dogs and strollers welcome.
October 2026
A two day trail running festival in North Bend WA with a steep Mt Si VK, a 30K mountain race with prize purse, a 10K, and a double challenge.
A last-one-standing backyard ultra where each completed loop adds $100 to a shared prize jar and the final payout is split 75% to the winner and 25% to the runner-up.
Trail races on the Middle Fork and CCC trails in North Bend, WA, on October 10, 2026. Distances from 10k to 50k feature river valley scenery, aid stations, and some unbridged creek crossings.
Community run at PLU Meadows Disc Golf Course offering a 1K kids run and a 5K. Proceeds support local youth running programs and a college scholarship.