Trail Running calendar near Joint Base Lewis-McChord 2026-2027

Trail out and back on the Sammamish River Trail from Bothell Landing offering a half marathon, a full marathon and a 50K. Water and snacks are available and finishers receive a wooden medal.

A trail run or walk near Mossyrock Park offering a choice of a 5K or an 8K Hill Challenge that crosses Mossyrock Dam and features Riffe Lake views, mixed terrain, stroller-friendly sections, and age-based entry fees.

Trail trail race around Soaring Eagle Park in Sammamish on July 4, 2026 with distances from 5 to 25 miles plus a virtual 25 mile option. Aid stations every 2.5 miles, commemorative shirts and medals, food and a chance to win baseball ticket..

A forested loop at Seward Park on a Lake Washington peninsula offering 4.2 mile and 10k trail options, on-course aid stations, and park-side parking near the start. Part of the Tuesday Night Trail to Grill Series.

Experience the lush forests and rolling hills of Cougar Mountain Regional Wildland Park at this trail event near Seattle. Choose between 5k, 10.8 mile, and 19.5 mile distances on varied terrain ranging from technical to groomed trails.

Mud Mountain Trail Fest is a trail running event at Mud Mountain Dam in Enumclaw, Washington on July 11, 2026. It offers a 4 Miler and a 10K on forested trails described as moderately challenging.

An all-ages glow run through the Snoqualmie Tunnel on the Palouse to Cascades trail with LED lighting, two participant waves, onsite merch options, and a post-race outdoor block party with food, games and drinks.

Monthly trail races at Cougar Mountain offer a range of distances across a summer series and an October autumn event. The events raise funds for King County Parks and include USATF championship and youth races in August.

A 5K trail run and walk on Tiger Mountain with an out and back route over unpaved roads and a short cross country section. The event is clothing optional and is sponsored by Tiger Mountain Family Nudist Park.

A mountain race weekend at Crystal Mountain on July 17-18, 2026 featuring a half marathon, downhill 10K and a 5K hill climb. Registration includes an all-day gondola pass and courses run on dirt trails through meadows and forest.

A 100 mile endurance race through Washingtons Cascade Mountains centered in Easton, with forested and rugged trails and a long-standing volunteer and radio operator community. Finishers under 32 hours may qualify for a Western States lotter..

A roughly 3-mile obstacle trail run at Joint Base Lewis-McChord on 18 July 2026, with waves of 25 released every five minutes and entry capped at 1,500. Packet pick-up includes a shirt, medal, bib and a post-race beverage ticket.

A trail run at St. Edward State Park on July 21, 2026 offering 4 mile and 8 mile loop options on mixed single track and wider trails. The event is part of a summer series and includes an aid station, post run food, and awards.

A one-day community trail running festival in Seattle featuring social group runs in two route lengths, an expo with running brands and vendors, food and a raffle, and a cupless policy with no dogs except service animals.

Trail races near Greenwater, Washington offering 25K, 50K and 50 mile distances with Mt Rainier views. Courses use mostly single track with substantial climbing, staffed aid stations, and primitive camping at Ranger Creek Campground.

Weekend volunteer event in Cougar, WA where participants hike about 9 miles roundtrip to carry water into remote aid stations for a race. Camping is available nearby and organizers provide food and some loaner gear.

Volcanic stages rugged trail races around Mt. St. Helens with a full circumnavigation 50K and a 25K that shares iconic volcanic terrain, steep climbs, boulder fields, river crossings, and substantial elevation change. Both races start and f..

A two day mountain trail event on Mount Ellinor near Hoodsport, Washington, offering a 24 km skyrace and a 10 km forest loop. The skyrace is part of the Skyrunner World Series and the USA Skyrunner National Series.

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..