Trail Running Calendar Washington 2026-2027

We have found 173 Trailruns in Washington. Check below where and when you can find the races.

Trail races at St. Edward State Park near Lake Washington offering 4 mile and 8 mile looped courses on mixed single track and wider trails, with an aid station at the start/finish. Part of the Tuesday Night Trail to Grill series.

A one day community running festival in Seattle on July 22, 2026, with a social run offering 4 mile and 6.5 mile options, an expo with vendors and a raffle, and onsite giveaways and activities at Seven Hills Running.

A trail ultramarathon near Greenwater, WA with 50M, 50K and 25K options on mostly single track. Routes start and finish at Ranger Creek Campground with significant elevation gain and multiple aid stations.

A 5 km trail race on the Riverside High School trails in Chattaroy, WA, organized by the Riverside High School Cross Country team and Ram Nation Boosters to raise funds for team travel and equipment, with marked course and awards.

August 2026

A trail race circling Mt St Helens with 50K and 25K options over lava, boulder and forest terrain. The 50K requires prior 50K completion and specific mandatory safety gear.

A multi day endurance event at Lake Padden offering six, twelve, twenty four and thirty two hour races on a marked 2.6 mile loop with night lighting, on course aid, and awards for top finishers.

A mountain skyrace in Hoodsport, Washington that climbs to Mount Ellinor's summit and a shorter forest loop through Pacific Northwest rainforest. Both races start and finish at Big Creek Campground with limited weekend camping.

A loaded trail event at Esmeralda Trailhead in Cle Elum, Washington on August 1, 2026. Two options: a 13 mile route with 4,406 ft elevation gain and a 9 mile mini with 2,831 ft, each requiring a 20 lb dry load.

Stair races and walks at Stadium Bowl in Tacoma with one lap and two lap options, a Heroes Race with weighted vests, and proceeds supporting Kindred Souls Foundation. Open to participants aged eight and up with guardian supervision for mino..

A trail race on August 8, 2026, starting at Fairhaven Park and running into Larrabee State Park. Routes showcase forest, lakes, and narrow ridgelines with options of 12K, 25K and 50K and significant elevation gain.

An overnight ultrarun and ruck event in Spokane featuring 24 hour and 12 hour formats plus a family Tiny Titans loop. The course is a 1.56 mile dirt and wood chip loop with a semi stocked aid station and on site medical.

A community trail running event at Cougar Mountain Regional Wildland Park offering 5k, 14.5 mile and 26.2 mile courses through forested, varied single-track; part of a multi-race series with youth scoring and aid stations along each course.

A multi-distance road and trail race in Coupeville on Whidbey Island, running through Ebey's Landing National Historic Preserve with ocean, prairie and mountain views, plus a virtual option.

A USATF-certified marathon and half marathon on August 9, 2026 near Hyak and Snoqualmie Pass. The rail-trail course runs through the Snoqualmie Tunnel, has about 1,000 feet of net elevation loss, aid stations every 2 to 3 miles, and shuttle..

A 200 mile point to point endurance run through the Cascade Mountains near Mount St. Helens, featuring thirteen aid stations and six sleep stations. Scheduled for August 14 to 18, 2026.

A 20 mile single track trail run along the southwestern side of Mount St. Helens starting at Marble Mountain Sno Park. The course crosses lava fields, streams, and old growth forest and has a 9 hour cutoff on National Forest lands.

A timed endurance event at Lincoln Park on August 15, 2026, featuring a repeated two mile loop with 18, 12, 6, and 3 hour formats, team competition, and Kids Loopy Races. The race is cupless and supports on-course snacks and food options.

A backyard ultra at Riverside State Park with hourly loop laps for runners and ruckers, a night out-and-back on the Centennial Trail, and specific ruck weight requirements; the last person standing wins.

A two day trail race festival in the Olympic National Forest on August 15 and 16, 2026 offering 10K, 25K, 50K and 100K runs plus ruck divisions, marked courses, stocked aid stations and on site camping.

An evening running event at Chambers Bay in University Place, Washington offering 5k, 10k and half marathon distances on a paved loop with varied terrain, aid stations, race-day packet pick-up, and event swag.

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