Trail Running calendar near Concrete 2025-2026

The Carkeek Warmer Trail Run, held at Carkeek Park in Seattle, WA, features 5k and 10k distances on June 24, 2025. The course offers six miles of dynamic, roller-coaster trails through forested terrain, combining wide, rolling paths with narrow, steep sections. The 5k route includes a mix of gentle..

The Tiger Peak Challenge is a trail running event held near Issaquah, Washington, within the expansive 13,745-acre Tiger Mountain State Forest. This challenging race features three distances: 5 miles, a half marathon, and a 50K ultra, with courses that include climbing two of Tiger Mountain’s peaks...

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...

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..

Kill Bill’s Oyster Dome Challenge is a challenging trail running event held at Lower Blanchard Mountain, near Alger, Washington. Offering two distances, 25k and 50k (two loops of the 25k course), the race features a demanding elevation gain of 3,500 feet per loop with steep climbs, long downhills, a..

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 of 4 or 6.5 miles, followed by a lively expo at Seven Hills Run..

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 Fat Dog 120 Trail Race is a challenging ultra running event held in British Columbia, Canada, featuring several distance options including a 120-mile race. The point-to-point course starts in Keremeos and finishes in E.C. Manning Provincial Park, covering approximately 124 miles with nearly 8,00..

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..

Larrabee Lakes is a trail running event held in Bellingham, Washington, starting and finishing at Fairhaven Park. The race offers three distances: 12K, 25K, and 50K, winding through lush green forests and past picturesque lakes within Larrabee State Park. Runners experience a mix of smooth singletra..

Race the Reserve is a scenic running event held in Coupeville, Washington, on Whidbey Island. Scheduled for August 9, 2025, it offers multiple race distances including a 5K, 10K, half marathon, and a virtual race option. The course features a unique blend of seaside bluffs, dense forests, dirt and p..

The Olympic Mountains Trail Races, held in the Olympic National Forest near Quilcene, Washington, offer challenging trail running events over two days in August. Distances include a rugged 100K with 14,200 feet of elevation gain on mostly single-track trails, a demanding 50K featuring 8,600 feet of..

The Paradise Valley Trail Run, held at Paradise Valley Conservation Area in Woodinville, Washington, offers 5k, 10k, and half marathon distances on gently rolling trails. The course features a mix of wide promenades and narrow, winding paths through wetland cedar groves and gentle ridges, providing..

The Cascade Express Marathon and Half-Marathon, held in Snoqualmie Pass, Washington, is renowned as one of the fastest marathon courses in the U.S. Both races feature scenic, point-to-point courses along gravel trails with stunning views of the Cascade Mountains and Keechelus Lake. The marathon offe..

Finlayson Arm is a challenging trail running event held in Victoria, British Columbia, featuring distances of 28K, 50K, and 50 miles with significant elevation gains—4,400 ft for the 28K, 10,075 ft for the 50K, and 13,000 ft for the 50-mile race. The course includes a mix of single track, double tra..

The Cutthroat Classic is an 11-mile trail run through the North Cascades, following the iconic Pacific Crest Trail over Cutthroat Pass. Held in the scenic Methow Valley, the race features high alpine views and a challenging course that begins at Rainy Pass, ascending gradually to 6,835 feet before d..

Beat The Blerch is a unique running event held in Carnation, Washington, about 35 minutes from Seattle, at King County’s Tolt MacDonald Park. The race offers multiple distances including a 5K, 10K, half marathon, and full marathon. The course is a flat, out-and-back gravel trail that meanders throug..

The Frosty Mountain Ultra is an exhilarating trail running event set in Manning Provincial Park, British Columbia, scheduled for September 13, 2025. Participants can choose from three distances: 13km, 27km, and 50km, each offering stunning views and challenging terrain. The race begins and ends at t..

Corn Maze Craze is a unique fall running event held at Bob’s Corn & Pumpkin Farm in Snohomish, Washington. Participants can choose between a 5k or 7k course that combines trail running with an adventurous route through a corn maze. The course starts and ends with runs along dirt farm roads, passing..