Trail Running calendar near Federal Way 2026-2027

We have found 87 Trailruns within 80 miles of Federal Way. See below where and when you can find the races.

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..

Celebrate health and recovery with a 5k trail run through the beautiful Illahee Preserve Heritage Park. Enjoy a well supported course in the woods followed by coffee and donuts with the community.

Run through the historic Snoqualmie Tunnel on a fast, downhill course built for speed. This USATF certified marathon is a renowned Boston qualifier, set against stunning Pacific Northwest scenery. Registration includes shuttle service, prof..

Experience a 7.9 mile mountain race at Crystal Mountain featuring a 2614 foot vertical gain. Runners reach a high point of 6861 feet at Grubstake while enjoying views of Mt Rainier and the Cascade Range.

The Plain Endurance Runs are remote, self-supported races on Forest Service trails in the Cascade mountains. Distances include a 100K and a 100-mile event with significant elevation change. It is a non-profit event supporting local Search a..

Ultra Fest offers fast, scenic gravel trail races from 25k to 100 miles in Easton, Washington. Runners enjoy lake and mountain views on an out-and-back course. The event provides on-site parking, crew access, and aid stations for a well-sup..

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.

October 2026

The North Bend Trail Fest is a two-day celebration of mountain running and outdoor adventure in Washington. Runners can tackle the challenging Skyline 30k, a vertical kilometer race up Mt Si, or a scenic 10k. The event also features a festi..

Mad Meadows 50 offers a high-elevation trail run through golden larch forests near Leavenworth. The 50k and 50-mile courses feature technical single track and expansive alpine views. It takes place in October, with a cupless race format and..

Experience the lush forests and rugged mountain beauty of the Snoqualmie River valley. This trail event offers four distances from 10k to 50k on scenic river valley paths with modest climbing.

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.

November 2026

Experience the lush forests of the Cascade foothills at the Grand Ridge Trail Run. Choose from distances ranging from a 5 miler to a 50K on a scenic and technical course near Issaquah.

Run on the famously flat and fast Willapa Hills Trail in Washington. This festival offers distances from a 5K to a 100-mile ultramarathon, with a scenic route along an old rail grade. It's a community-focused event with modest entry fees su..

Experience a forested trail run through Carkeek Park with views of the Olympic Mountains. This event offers 5k and 10k distances on a mix of wide and narrow trails as part of the Winter Trail Series.

Experience a forest filled ravine in Seattle at the Ravenna Refresher Trail Run. Choose from a 4k, 8k, or 12k loop through groomed trails in this second event of the Winter Trail Series.

December 2026

Experience a scenic trail run through the lush forests of the Redmond Watershed Preserve. Choose between a 5 mile or half marathon course featuring well groomed paths and festive holiday spirit.

Experience a low key and community focused running event in Maple Valley. This flat course offers half marathon, marathon, and 50K distances for runners seeking a grassroots atmosphere and personal challenge.

Celebrate the winter season with a 10 km trail run through the forested paths of Squaxin Park. Experience the holiday atmosphere and the natural elements of the Pacific Northwest in this Olympia community event.

Experience a winter trail run through the old growth forest of Seattle's Seward Park. Choose between 4.2 mile and 10k loops featuring a mix of smooth paths and technical lakeside trails.