Trail Running calendar near Downtown Seattle 2025-2026
We have found 70 Trailruns within 80 miles of Downtown Seattle. See below where and when you can find the races.
We have found 70 Trailruns within 80 miles of Downtown Seattle. See below where and when you can find the races.
Run a scenic 25K point to point through old growth evergreens and fern lined singletrack in Larrabee State Park near Bellingham. Expect runnable trails, ocean and Mount Baker views, and a finish at the Larrabee State Park Amphitheater.
Celebrate Pi Day with the Pie High Trail Run at Lord Hill Park, a hilly, scenic trail challenge offering 5k, 10k and half marathon courses. Finish with a slice of pie and riverside views after mossy forest and creek crossings.
Join the A2PT 5K in Tacoma's Titlow Park and trails for a family friendly run, walk, roll or cheer supporting the National Multiple Sclerosis Society. Enjoy music, coffee, snacks, shirts for early registrants and a post race raffle.
Run among lush trails at Bridle Trails State Park in Kirkland on March 28 with distances from 5K to marathon. Smooth forest loops, moderate climbs, and friendly aid stations make this a great spring trail challenge.
Run the inaugural Redmond Marathon on March 29, 2026, from Sixty Acres Park along the scenic Sammamish River and East Lake Sammamish trail. This Boston Marathon qualifying 26.2 miles out and back offers a fast, well supported course.
Run the Olympic Adventure Trail in Port Angeles with 12K, half marathon or 50K on scenic single track through forest and coastal views. Limited to 130 runners, with shuttles, cupless hydration and a finish party supporting local trails.
Squak Mountain Trail Runs at Squak Mountain State Park offer 12K, half marathon and 50K loop courses with big climbs, summit views and historic forest scenery. Kids races, aid stations and a brunch run make it a full day for trail lovers.
Tackle 3,800 feet of climbing on mountain trails in the Leavenworth Skyline 27k for sweeping alpine views and a steep, rewarding challenge. Finishers choose a custom mug or tree planting and enjoy a post race meal.
Rainier to Ruston Rail-Trail Relay (R2R) is a National Trails Day running event spanning from Mount Rainier to Ruston, near Tacoma, Washington. Scheduled for June 6, 2026, the race brings athletes and community members together to run along..