Trail Running calendar near Bellingham 2026-2027

Baker Lake Classic 25k on Sunday October 4, 2026 is a 25k event organized by NW Endurance Events. Registration closes October 3 and the entry fee is $80 with a race shirt offered for $25.

A technical single-track trail race on Sumas Mountain on October 10, 2026, offering 10 km, 20 km and 30 km loops, aid stations, finish food, podium prizes and a 30 km team challenge.

A 30 km trail event around Cultus Lake with solo and two person relay options, plus a 1.5 km kids race. The route follows mainly forest trails with some roadside and beachside sections; registration rules and fees apply.

Trail races on North Shore terrain with marathon, half marathon and 10 km starting and finishing at Inter River Park. Aid stations, finisher medals, podium awards and costume prizes are part of the event.

A multiformat endurance event at Salt Creek Recreation Area with 12 hour and 24 hour loop options, a relay format, and a Last Runner Standing summit challenge offering coastal views and stocked aid stations.

A looped trail fundraiser at Carkeek Park in Seattle offering timed 12 hour and 6 hour options in person on October 24 2026 and virtually October 1 to 31. The 1.93 mile loop gains 436 feet per lap and entries are capped at 50.

A costumed community event at Lincoln Park featuring a trail 5K, kids dashes, and a virtual shirt option to support South Seattle College Cooperative Preschools. Registration includes a Monster Dash shirt and the 5K includes a timed bib.

Trail races along the Vedder River in Chilliwack on October 31 2026. Options include a half marathon, 10K and a kids run and a minimum of 5 CAD per registration supports local trail and youth programs.

A 10K trail race in Port Gamble, Washington on October 31, 2026. The course mixes single track and dirt roads with about 600 feet of climbing and a pre race costume contest; the field is limited to 100 entrants.

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 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.

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.