Trail Running calendar near Downtown Seattle 2025-2026

Run a scenic, mostly downhill mountain course from Snoqualmie Pass to North Bend, including a memorable passage through a dark tunnel. Fast, USATF certified route with strong BQ history makes it a favorite for goal chasing runners.

Challenge yourself at the Super HYAK Marathon or Half on June 13, 2026, along scenic trails with sweeping Cascade and Keechelus Lake views. Both point to point courses feature net downhill profiles and a tunnel section on the half.

Explore Cougar Mountain single track trails on June 13 with options from 5K to 14.5 miles through forested hills and wetlands. Organized by Seattle Running Club and Northwest Trail Runs, part of each entry benefits King County Parks.

Located in North Central Washington, the TedDriven Overland Ultra Relay (TOUR) is a three-day, stage-style team relay through Leavenworth, Cashmere, Entiat, and Lake Chelan. Teams of up to eight runners cover roughly 75 miles per day across..

Run the Tiger Peak Challenge near Issaquah, WA on June 20, 2026 with 5 Mile, Half Marathon, 50K and Kids Race options. Tackle steep ridgelines and forest trails with staffed aid stations and cupless refillable hydration.

Run the 24th annual Hotfoot 5K at South Kitsap Regional Park in Port Orchard on June 20, 2026, a scenic mostly flat loop through wooded trails and park features. Proceeds support community scholarships and the Fourth of July fireworks and a..

Run the Yeti Washington ultra on the Palouse to Cascades Trail June 26 to 27. Choose 100K, 100 mile or 200K from Hyak Sno Park and tackle a crushed limestone out and back with a cold 2.3 mile tunnel and crew friendly aid.

Run scenic single track trails on Cougar Mountain in Bellevue with 5K, 10.8 mile or 19.5 mile options. This cup free race includes post race food and beer and a small donation supports King County Parks.

Cascade Crest is an epic 100 mile trail race near Easton, Washington with about 23,000 feet of climbing, miles on the Pacific Crest Trail and a run through the iconic Snoqualmie Tunnel. Tackle rugged, technical forest trails on July 17, 202..

Tackle mountain trails at Crystal Mountain Resort July 17 to 18, 2026 with multi distance races from a sharp 5K climb to a scenic half marathon descent. Entry includes a race shirt, finisher medal and an all day gondola pass for stunning vi..

Larrabee Lakes Trail Run in Bellingham, WA on Aug 8, 2026 offers 50K, 25K, 12K and a kids race from Fairhaven Park. Enjoy scenic singletrack, ridgelines and lakes, big climbs and handcrafted awards for finishers.

Run Cougar Mountain's scenic single track trails with 5K, 14.5 mile or marathon options on August 8. Expect fern lined paths, rolling hills, cup free aid stations so bring a refillable bottle, plus post race food and beer.

Run the Tunnel Vision Marathon or Half on August 9, 2026 between Snoqualmie Pass and North Bend, WA. Scenic point to point net downhill course with a run through Snoqualmie Tunnel and strong Boston qualifier potential.

Tackle rugged trails in the Olympic National Forest near Quilcene WA with distances from a scenic 10K to a demanding 100K. Registration opens Jan 23 2026 and race HQ is a retired quarry deep in the forest for a true backcountry feel.

Experience the Dark Divide Trail Races Sept 4 to 6, 2026 near Randle, Washington, with distances from a 15 Miler up to a 100 Miler. Rugged, scenic forest courses, a Hardrock 100 qualifier, and rustic basecamp at Cispus Learning Center.

Coastline Endurance Running hosts scenic, technical trail races across Vancouver Island, from mossy Arbutus forests to rugged mountain single track. Pick distances from 25 km to 50 miles or take on the Double during the Vancouver Island rac..

Experience the GOAT Run along the Olympic Adventure Trail, finishing at Lake Crescent inside Olympic National Park. Choose a half, marathon or 50K on rugged single track and celebrate at Log Cabin Resort with a lodging discount.

Scenic point to point marathon and half near Snoqualmie Pass on September 12, 2026, run on gravel trails with a net downhill. Marathon is Boston qualifying and the half includes a 2.4 mile stretch through the Snoqualmie Tunnel.

Join the quirky Beat the Blerch run created by The Oatmeal, with distances from 5K to marathon. Enjoy a flat out and back course through mossy evergreen forests along the Snoqualmie Valley Trail near Carnation.

Run the Tunnel Light Marathon and Half on a scenic point to point course from Snoqualmie Pass to North Bend, featuring a tunnel section and steady downhill that makes for fast times. Registration opens January 1, 2026.