Trail Running calendar near Bow 2026-2027

Trail races at Cougar Mountain Regional Wildland Park near Seattle offering 5k, 7.6 mile, 19.5 mile and 50k courses through forested single track, rolling hills and marshes. Proceeds support King County Parks.

A Halloween-themed 5 km at Swangard Stadium on October 31, 2026, with a 400 m Mini Monster Dash for children 10 and under. Registered runners receive swag, chip timing, and post-race refreshments; kits are picked up the day before.

Trail races at Sasamat Trail in Vancouver on November 1 2026, featuring a half marathon plus 10K and 5K. The event raises funds for first responder charities and offers chip timing, aid stations and finisher medals.

A multi-distance trail event at Grand Ridge Park near Issaquah, WA offering 5 mile, half marathon, full marathon and 50K options across two looped courses through mossy Cascade foothill forests with stocked aid stations.

A forested trail run at Carkeek Park in Seattle offering 5k and 10k courses with rolling and steep sections, an aid station at the start, and a youth discount for runners under twenty. Dogs are not allowed on the course.

Scenic trail races at Deception Pass State Park in November, offering 50K and 25K courses that cross the historic bridge and run varied single-track with aid stations, drop bag support, and a separate 1K kids loop.

A November trail race on North Shore routes offering 12 km, 19.5 km and 25 km distances, on-site aid stations and a food drive for the local food bank. Expect technical trails, muddy sections and possible creek crossings.

Ravenna Refresher is a trail run at Ravenna Park in Seattle offering 4k, 8k, and 12k on a 4.1 km loop through forested ravine. The event includes an aid station, a youth discount, and is part of the Winter Trail Series.

Trail run at Redmond Watershed Preserve offering 5 mile and half marathon options on mostly wide, smooth trails. The half marathon repeats a 6.55 mile loop and includes two aid stations; a Winter Wonderland costume contest is part of the ev..

A forested loop at Seward Park offers 4.2 mile and 10k trail options as part of the Winter Trail Series, with an aid station near the start finish and a themed costume contest.

Trail event at Grouse Mountain on 12/31/2026 offering two in-person races of 10 and 50 miles plus a 10-mile virtual challenge. Registration opens 12/31/2025; fees range from $50 to $120.

Trail runs at St. Edward State Park offering 4 mile or 8 mile looped courses along singletrack and shoreline. It is the fifth event in the 2026/27 Winter Trail Series and includes an aid station and parking options.

Trail runs of 5 mile and Half Marathon at Soaring Eagle Regional Park in Sammamish, WA. Courses use technical singletrack and a Pipeline Trail section with aid stations and rolling short hills.

Interlaken Icicle Dash features 5k and 10k trail loops through Seattle's wooded Interlaken Park as the final event of the 2026-27 Winter Trail Series, with on-course aid and street parking near 21st Ave E and E Interlaken Blvd.

Woolley Trail Runs offers three out and back races along the Cascade Trail near Sedro Woolley WA. Courses run on railroad grade gravel with limited aid stations and several road crossings where runners must watch for traffic.

An out and back trail event on the Fort to Fort Trail in Fort Langley offering 5K 10K and half marathon distances with chip timing and a custom medal. The course runs through Derby Reach Provincial Park along the Fraser River.

A 100 mile looped trail race on Orcas Island that uses four 25 mile loops, 15 aid stations and about 26,000 feet of ascent. Variable winter weather and required ferry travel are key logistical factors.

A 25K point-to-point trail race in the Chuckanut Mountains near Bellingham, WA, organized by Yeti Trail Runners, featuring singletrack through old-growth forest, ridgeline views, chip timing, and a finish at Larrabee State Park Amphitheater..

Timed loop race at Green Lake Park in Seattle offering 12 hour and 5 hour options. Runners complete repeated 3.2 mile laps counter clockwise on a groomed dirt path, and the competitor with the most laps in the time wins.

Trail races at Royal Roads University in Victoria BC offer three distances on single-track campus trails, one aid station on the long route, a cupless policy, on-site parking, post-race food and prize draws.