Trail Running Calendar Washington 2025-2026

The Olympia Tower Challenge is a unique urban adventure run held in Olympia, Washington, where participants have 10 hours to visit as many of twelve designated water towers as possible. Starting and finishing at 420 Steele St SE, runners plan their own routes, navigating the city while adhering to r..

The Seward Sizzler Trail Run is a scenic trail running event held at Seward Park in Seattle, Washington. Set on a peninsula surrounded by Lake Washington, the course features a loop mostly through old-growth forest known as “The Magnificent Forest,” with towering Western Red Cedars and Douglas Firs...

Running with BigFoot 8K is an annual trail running event held at Mud Mountain Dam in Enumclaw, Washington. Now in its 6th year, this challenging 8-kilometer race takes participants through picturesque trails in Bigfoot's backyard. The event emphasizes environmental responsibility by eliminating disp..

Kill Bill’s Oyster Dome Challenge is a challenging trail running event held on Blanchard Mountain near Alger, Washington. Participants can choose between a 25k or a 50k race, with the 50k consisting of two loops of the 25k course. The course features tough climbs, including the infamous Kill Bill Hi..

Devil's Gulch is a challenging trail running event held in Wenatchee, Washington, featuring a 100-mile, 50-mile, half marathon, and kids race. The course showcases the hot, dry high desert terrain with dramatic gulches and rock hoodoos. The 100-mile race includes a tough loop ascending Mission Peak..

The Cougar Mountain Trail Run Series #3 is a trail running event held at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, just 15 minutes from Seattle. Scheduled for July 12, 2025, the race offers three distance options: 5k, 10.8 miles, and 19.5 miles. The course featur..

The Get Lost Trail Race, held annually at Lost Lake near Tonasket, Washington, is a scenic trail running event supporting the Okanogan Highlands Alliance, a local environmental group. The 7th annual race offers three distances: 3 miles, 7 miles, and an 11-mile course, which follows the same route as..

Grey Rock Trail Runs, held near Yakima, Washington, offers challenging summer trail races in the Cascade Mountains. The event features two distances: a rugged 25K with over 3,500 feet of elevation gain and a shorter 12K option following the same route. Both races start at Tree Phones Campground in t..

The Mount Rainier Half Marathon & Trail Events take place at Crystal Mountain Resort near Enumclaw, Washington, in the Cascade Range. This scenic race offers a 13.1-mile half marathon course that starts at the summit and descends through forested trails, alpine meadows, and ridgelines with stunning..

Cascade Crest is a renowned 100-mile trail running event held in Easton, Washington, known for its challenging course and vibrant atmosphere. The race features over 23,000 feet of elevation gain and includes about 32 miles along the scenic Pacific Crest Trail. A unique highlight is running through t..

The Three Corner Rock PCT Trail Races, held near Carson, Washington, offer two stunning point-to-point trail runs along the Pacific Crest Trail from the South Washington Cascades to the Columbia River Gorge. The event features a classic 50K race starting at Whistle Punk Trailhead and a new, challeng..

The Three Corner Rock PCT 50K is a point-to-point trail race along the iconic Pacific Crest Trail, running from the South Washington Cascades to the Columbia River Gorge. Organized by Wonderland Running, this 50-kilometer race features a scenic detour to Three Corner Rock, offering stunning 360-degr..

The Summer Eddy Trail Run, part of the Tuesday Night Trail to Grill series, takes place at St. Edward State Park in Kenmore, Washington. Offering 4-mile and 8-mile distances, the course features a mix of wide trails and twisting single track with swooping turns, moderate roots, and rocks, providing..

Dirt Circus - Seattle is a free community trail running event held in Seattle, Washington, celebrating local races, run clubs, and running culture. Organized by UltraSignup, this one-day festival features a social group run with options for a 4-mile or 6.5-mile route, followed by a lively expo at Se..

Camp Lug-A-Chug is a unique volunteer event held near Cougar, Washington, at Marble Mountain Sno Park. Participants carry water uphill to remote aid stations for a race, hiking approximately 9 miles roundtrip each day over a weekend. The event is known for its challenging physical activity, camarade..

The Beast of Big Creek is a challenging mountain trail running event held at Big Creek Campground near Hoodsport on the Olympic Peninsula, Washington. Featuring three race options, it includes a 22K (14-mile) Skyrace certified by the International Skyrunning Federation, which ascends over 5,300 feet..

Hamster Endurance Runs is a multi-distance ultrarunning event held annually at Lake Padden in Bellingham, Washington. Established in 2013, the race offers 6, 12, 24, and 32-hour endurance challenges on a well-marked 2.6-mile loop trail around the lake, featuring compact dirt and crushed gravel with..

The Volcanic 50 is a rugged and challenging trail running event held at Mt. St. Helens in Washington.It features two race distances: a demanding 50K course that circumnavigates the volcano via the single-track Loowit Trail, covering about 32 miles with roughly 7,400 feet of elevation gain and loss,..

The Bigfoot endurance races, including the 200 Mile, 40 Mile, and 20 Mile events, take place in the scenic Cascade Mountains of Washington State. The flagship Bigfoot 200 is a challenging 207.9-mile point-to-point race circumnavigating Mount Saint Helens, Mount Hood, and Mount Rainier, featuring ove..

The Cougar Mountain Trail Run Series #4 takes place on August 9, 2025, at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, just 15 minutes from Seattle. This event offers three race distances: 5k, 14.5 miles, and a full marathon of 26.2 miles. The course features a vari..