Trail Running calendar near Renton 2025-2026

Celebrate Thanksgiving at the Soaring Eagle Turkey Trot on November 27 in Sammamish with 2k kids, 5k, 10k and a technical 5 mile trail race through Soaring Eagle Park. All finishers earn a medal, registrants get a Turkey T shirt, and top ma..

Join the Redmond Reindeer Romp on Dec 6, 2025 at Redmond Watershed Preserve with 5 mile and half marathon options. Run scenic forest trails with gentle hills and earn Winter Trail Series swag.

Join Pigtails Run in Maple Valley on December 13, 2025 for 50K, marathon or half along scenic Cedar River and Green River trails. Low support Fat Ass style event; finishers get a Pigtails medal and patch.

Celebrate the season with Saturnalia, a festive 10K trail run through Squaxin Park in Olympia on December 13, 2025. Enjoy wooded trails with views of Puget Sound and the state Capitol, holiday treats on course, and a medal for every finishe..

Run scenic coastal trails at Deception Pass State Park on December 13 and 14, 2025 with 50K, 25K and a kids 1K fun run. Expect technical single track, bluff views and two crossings of the iconic bridge.

Celebrate the solstice on a scenic loop through Seattle's Seward Park, choose a 4.2 mile or 10k and enjoy forest trails and playful terrain. Dress up for Glitter Glamour and the Galaxy costume prizes and score limited edition series socks.

Explore St. Edward State Park on January 3, 2026 with 4 mile and 8 mile loops that hug the lakeshore and weave through twisting single track. This USATF sanctioned Winter Trail Series stop offers finish aid and season perks.

Take on the Race to the Top of Mount Si on January 3, 2026, a steep 3.7 mile trail climb with 4,167 feet of vertical gain to the Rock Garden. Enjoy aid stations, a finisher shirt and medal, and fierce competition for the Golden Si award.

Celebrate winter trails at Bridle Trails Winter Running Festival, a daytime event returning for the first time in 30 years at Bridle Trails State Park. Pick 5 mile to 50k loops or relay teams and support the Bridle Trails Park Foundation.

Frost Eagle Trail Run on January 17 at Soaring Eagle Regional Park in Sammamish offers 5 mile and half marathon courses on twisty singletrack with rolling hills. Figure eight loops pass aid stations regularly for steady support.

Wake up for the Coffee Lovers and Chocolate Lovers 5K and 10K on Jan 18, 2026 in Sumner, Washington along the scenic Sumner Link Trail. Enjoy post race Keurig coffee and handcrafted Puyallup chocolates after your run or walk.

Run the Interlaken Icicle Dash in Seattle on January 31, choose 5k or 10k looped courses that weave paved boulevard and scenic dirt trails with a short climb. It is the final race of the Winter Trail Series, full of winter running charm.

Join the West Seattle Beach Run Fat Ass on Sunday, Feb 8, 2026 for a scenic marathon or half along Elliott Bay and through Lincoln Park. Enjoy waterfront views, skyline sights, and a friendly grassroots vibe on this out and back course.

Take on marathon, half marathon, 10 km or 5 km trail races at Fort Ebey State Park on Whidbey Island. Rolling forested kettle terrain and bluff top views of the Strait of Juan de Fuca and the Olympic Mountains make each mile scenic.

Run Forest Run is a scenic but rugged trail race at Lake Sylvia State Park offering 25K and 50K options. Enjoy forested single track, muddy technical sections, and lake views while supporting a local trail running non profit.

Take on the Woolley Trail Runs along the scenic Cascade Trail in Sedro Woolley, WA with 50k, marathon, or half marathon options on railroad grade gravel. Courses are out and back with limited aid and parking, so come prepared.

Challenge yourself on forested, muddy trails at Lord Hill Regional Park with race options from 5K to 50K, creek crossings, slippery bridges and a steady climb. Aid stations keep you fueled and finishers earn handmade, solar powered awards.

Run the scenic Rock Solid Marathon or Half on Whidbey Island, Saturday February 28, 2026, with coastal roads, beach miles, and island trails finishing at the historic Captain Whidbey Inn. Proceeds support The Rock Solid Foundation.

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.

Run a 10K or half at Dash Point State Park on lush forest trails and a sandy Puget Sound beach. Enjoy a single loop course with rolling climbs, bridges, and a handmade finisher item produced with solar power.