Trail Running calendar near Oak Harbor 2025-2026

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...

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..

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 Vancouver Island Trail Running Series - Ladysmith is a premier trail running event held at Transfer Beach Park in Ladysmith, BC. It features two main race distances: a Long Course of approximately 20 km and a Short Course of about 10 km, both showcasing some of Western Canada's most scenic trail..

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..

Buckin' Hell is a challenging trail running event hosted by Salomon Coast Mountain Trail Running, held at Mt Seymour Resort in North Vancouver, BC. The race features rugged terrain with nearly 2,500 meters (8,250 feet) of climbing and descent through the North Shore Mountains. Participants can choos..

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 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..

Twilight at the Bay is a scenic running event held at Chambers Bay Loop Trail in University Place, Washington. Participants can choose from a half marathon, 10k, or 5k race, each featuring loops on a wide, paved trail with a mix of flat sections, inclines, and switchbacks. The course offers breathta..

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 Vancouver Island Trail Running Series - Cobble Hill is a premier trail running event held at Quarry Nature Park in Cobble Hill, BC, Canada. Now in its 8th year, this race features challenging single-track trails through the Cobble Hill Mountain Recreation area, showcasing classic West Coast terr..

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..

Finlayson Arm is a challenging trail running event held in Victoria, British Columbia, featuring distances of 28K, 50K, and 50 miles. The course includes a mix of single track, double track, and coastal mountain trails through old growth forests and Arbutus trees. Runners face significant elevation..

The GOAT Run in Port Angeles, Washington, is a challenging trail running event featuring a half marathon, marathon, and 50K race along the scenic Olympic Adventure Trail. The point-to-point course traverses Kelly Ridge between Olympic National Park and the Strait of Juan de Fuca, finishing at the st..

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..

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..