Trail Running calendar near Sumner 2026-2027

Cascade Express Marathon and Half in Snoqualmie Pass, WA features a USATF certified marathon with 1,247 feet of net downhill and a national number 5 Boston Qualifier ranking. The course runs through the Snoqualmie Tunnel corridor.

Experience a flat out and back course through mossy evergreen forests along the Snoqualmie valley trail. Choose from four different distances starting at Tolt MacDonald Park in the town of Carnation.

Coal Miner is a rugged, self-supported 51.3-mile trail run through the mountains near Roslyn, WA. With no course markings and minimal aid, it demands strong navigation skills and mountain readiness. Finishers must provide summit selfies and..

Fourth annual 5K at Illahee Preserve in Bremerton held during National Recovery Month. Proceeds support the Salish Recovery Coalition and participants receive event swag, a custom finisher medallion, coffee and donuts.

A marathon and half marathon on September 13, 2026 at Hyak Snoqualmie Pass featuring a packed gravel course with about 1,000 feet of net downhill and a run through the Snoqualmie Tunnel; the marathon is a USATF certified Boston Qualifier.

Experience an obstacle course championship weekend at Meadow Wood Equestrian Center. Choose from several distances through evergreen trails and narrow paths between the Cascade Mountains and Puget Sound.

A 7.9 mile trail race at Crystal Mountain, Washington with about 2,614 feet of vertical gain, three competition divisions offering cash and gear prizes, and season points awarded to the top 20. Field capped at 700 entries.

Remote ultra events near Leavenworth, WA feature the Plain 100K and Plain 100 Mile on USFS trails and roads with about 21,000 feet of elevation change and self-support requirements.

Ultra Fest in Easton, Washington offers fast, flat trail races on the Foothills Trail across multiple distances with crew access, on-site parking, stocked aid stations, and race medals or buckles.

A themed 5K on September 19, 2026 at Magnuson Park in Seattle that invites participants to walk or run in costume. The trail route includes mild inclines and mixed surfaces and welcomes leashed dogs and suitable strollers.

A weekend of alpine trail races near Cle Elum Washington on September 19 and 20 2026 offering 100 mile, 50 mile and 50K courses with long climbs, remote aid station gaps, required safety kit and qualifying and trail work requirements.

A two day mountain running festival in North Bend, WA featuring the Skyline 30k, Mt Si VK, Little Si 10k, and a North Bend Double, plus outdoor exhibits and awards across Elite, Sport, Masters and Nonbinary divisions.

High elevation trail running near Leavenworth with **50 mile** and **50 kilometer** courses featuring technical single track, steep climbs, ridge views, and larch framed meadows. Multiple aid stations and a varied mountain route define the..

Trail races near North Bend, WA follow the Middle Fork and CCC trails through old-growth forest and river views. Multiple measured distances from 10k to 50k include aid stations and water crossings.

Join this unique Halloween themed relay scramble in Black Diamond. Form a team to track down rogue ghosts and return them to Civic Park in a race that combines running with a scavenger hunt.

A Halloween trail run in Port Gamble offering a 10K course of single track and dirt roads with about 600 feet of climbing mostly in the first three miles, chip timing, a pre race costume contest, awards for top finishers, and a 100 runner l..

Experience the lush forests of the Cascade foothills in this seasonal finale featuring distances from 5 miles to a 50K ultramarathon. Run through golden fall colors and mossy trails in the heart of Grand Ridge Park.

Flat, fast out-and-back trail races on the Willapa Hills Trail near Chehalis, WA, offering 5K up to 100 mile distances with aid stations and nonprofit-organized, low entry fees supporting trail maintenance.

A 5k and 10k trail run at Carkeek Park in Seattle on November 7, 2026, featuring forested singletrack, steep climbs and rolling downhills. Routes start and finish in the Lower Meadow beside Piper’s Creek.

Trail runs of 4k, 8k and 12k on a 4.1 km forested loop in Ravenna Park, Seattle, with a staffed aid station and a 230 foot climb per loop. Youth runners under 20 receive a $10 discount.