Trail Running calendar near West Seattle 2024-2025

The Victoria – Royal Roads event is part of the Vancouver Island Trail Running Series, showcasing stunning trail networks in Western Canada. Scheduled for April 12, 2025, this race features two course options: an 11km long course with a 300m vertical gain and a 6km short course with a 100m vertical ..

The Cottontail 6 & 12 Hour event, taking place in Seattle's Carkeek Park, offers participants the chance to run for either six or twelve hours on a scenic 1.93-mile loop. This annual race, now in its 11th year, features varied terrain, including steep stairs and rolling trails, with a total vertical..

The Squak Mountain Trail Run, taking place at Squak Mountain State Park near Issaquah, Washington, offers a scenic and challenging experience for runners. Participants can choose from various distances, including a 12K, Half Marathon (13.1 miles), and a 50K, all set against the backdrop of beautiful..

The Last Fool Standing is an exciting annual running event taking place in Poulsbo, WA, featuring various endurance formats over a weekend. Participants can choose from a 48-hour endurance challenge, a 24-hour event, or 12-hour sessions, all involving running a 5K+ trail loop. The event promises pri..

The Twilight 12 Hour is a unique night running event held at Flying Horseshoe Ranch in Cle Elum, WA. Originating from a casual night run in Utah, this event encourages participants to run a 2.3-mile loop under the stars for 12 hours, fostering a sense of community among trail runners. It's not a rac..

Tiger Claw is an exhilarating running event set in the rugged terrain of Tiger Mountain, Issaquah, WA, featuring challenging courses of 50k and 50 miles. Participants face steep ascents and descents, with the 50k offering approximately 8,500 feet of elevation gain, while the 50-mile "Tiger Claw Doub..

The Trillium Trail Run, organized by the Bainbridge Island Parks & Trails Foundation, is a premier spring running event featuring a 10K, 5K, and Fun Run. Set in the scenic Battle Point Park, participants will enjoy a beautiful course that winds through the Forest to Sky Trail and the Grand Forest. T..

The Dirty Turtle 25/50K is a challenging trail running event set to take place on May 17, 2025. The course features a mix of 75% singletrack and 25% dirt/gravel service roads, with significant elevation gains of 7,000 to 8,000 feet for the 50K runners. Participants can also opt for a rucking divisio..

The Pigtails Challenge is an endurance running event held at Lake Youngs Watershed in Renton, WA, featuring multiple distances including 200M, 150M, 100M, 100K, and 50K. The course consists of a rolling loop with a total elevation gain of 900 feet per loop, making it a challenging yet supportive env..

The Sri Chinmoy 13 Hour Ultra is a timed running event that takes place in Seattle, WA, featuring a scenic 1.54-mile loop course around Lake Washington. Participants can choose to run solo or as part of a team, with the event promoting a supportive and meditative atmosphere. Runners benefit from nea..

The Sri Chinmoy 3, 7, and 13 Hour Ultra Solo & Team Relay Races take place at Magnuson Park in Seattle, WA, offering a unique challenge for endurance athletes. Participants can choose between solo or team formats, running on a scenic 1.54-mile mixed-surface loop with views of Lake Washington. The ev..

The Freedom 50 is an ultramarathon event taking place in Buckley, WA, featuring a scenic 50-mile course primarily on paved trails. Participants can challenge themselves while enjoying views of rivers, waterfalls, and unique bridges. The course is relatively flat, making it suitable for both first-ti..

The Soaring Eagle Trail Run, taking place in Sammamish, WA, offers a variety of running events including a 5K, 10K, and Half Marathon, along with brunch runs and a kid's race. Set in the scenic Soaring Eagle Regional Park, the course features accessible trails that are relatively flat but include so..

The Rainier to Ruston Relay is a scenic relay race that takes place from the base of Mount Rainier to Tacoma, Washington, celebrating National Trails Day. Teams of 2 to 6 runners tackle a total distance of approximately 50 miles, divided into 12 legs, each ranging from three to six miles. Participan..

The Super Marathon & Half Marathon, taking place on June 21, 2025, in North Bend, WA, features two of the fastest courses in the country. The Super Marathon is a 26.2-mile scenic downhill race with a significant net elevation drop, making it a prime Boston Qualifier course. Runners will enjoy breath..

The Yeti 100 Mile Endurance Run in Washington is an exciting trail running event set for June 27-28, 2025. This race features three distances: 100 miles, 100K, and 50 miles, all taking place on the scenic Palouse to Cascades trail. The course is designed to be accessible for first-time 100 milers, w..

The SISU 24 Ultra PNW is an exciting endurance running event set in the stunning Cascade Mountains near Mount Rainier National Park. Participants can choose between a 24-hour solo or team adventure, or tackle a challenging 100-mile race. The event emphasizes self-reliance, with runners setting up th..

The Tiger Peak Challenge is an exciting running event taking place in Issaquah, WA, featuring a variety of race options including a 5 Mile, Half Marathon, and 50K, along with a Kid's Race. Set in the scenic Tiger Mountain State Forest, participants can enjoy the beautiful trails while challenging th..

The Kill Bill’s Oyster Dome Challenge is a unique running event held in Blanchard Mountain, WA, featuring two race distances: 25k and 50k. Named after the challenging ascent known as Kill Bill Hill, the course offers participants a scenic trek through the British Army Trail and the Alternate Incline..

Cascade Crest is a renowned 100-mile trail running event held in Easton, WA, known for its challenging terrain and scenic beauty. Participants will experience over 23,000 feet of elevation gain, including sections on the Pacific Crest Trail and the unique Snoqualmie Tunnel. The event fosters a frien..