Trail Running calendar near West Seattle 2025-2026

Run the Absolution Run at St Edward State Park on January 3, 2026, enjoying swoopy single track and shoreline views in 4 or 8 mile options. Youth save $10 and series runners can earn awards and limited edition socks.

Frost Eagle Trail Run at Soaring Eagle Regional Park offers 5 mile and Half Marathon trail races on January 17. Tackle rolling, technical singletrack in a figure eight with stocked aid stations and earn limited Winter Trail Series socks.

Coffee Lovers and Chocolate Lovers 5K & 10K is held in Sumner, Washington, offering two distances: 5K and 10K. Runners traverse the scenic Sumner Link Trail as part of a Pacific Northwest course. The event centers on a unique, themed experi..

Interlaken Icicle Dash : event overview Interlaken Icicle Dash takes place on January 31, 2026, at Interlaken Park in Seattle, WA. It is the seventh and final event in the 2025-26 Winter Trail Series. Distances offered: 5k 10k A youth run..

Run forested singletrack and bluff top trails at Fort Ebey State Park on Whidbey Island with 5k, 10k, half and marathon options over Feb 14 and 15. Enjoy rolling terrain, a finisher medal, and support the Healthy Island Youth Initiative.

Tackle the Lord Hill Trail Run in Snohomish with 5K, 10 mile, 20 mile or 50K courses featuring a tough opening climb, rocky trails and creek crossings. Events are cupless so bring a refillable bottle and every finisher gets handmade swag.

Join Little Backyard Adventure in Olympia for 3, 6, or 12 hour trail runs on a scenic 4 mile loop through wooded single track with a lively aid station. Compete for most loops, enjoy the after party, and plant a tree to mark your finish.

Hit scenic coastal trails at Dash Point State Park near Federal Way, WA, choosing a 10K loop or a 13.1 mile half made of two loops. Expect nontechnical singletrack, handmade finisher swag, and a family friendly kids race.

Last Fool Standing - March 28-29, 2026 Last Fool Standing is the 4th annual running event held the weekend of March 28-29, 2026 at Port Gamble Heritage Trails near Poulsbo, WA. The event offers multiple race formats on a looped trail of app..

Run the scenic Olympic Adventure Trail Run on April 11, 2026 in Port Angeles WA along single track trails on Kelly Ridge between Olympic National Park and the Strait of Juan de Fuca. Choose 12K, half or 50K and enjoy shuttles, race swag and..

Run scenic singletrack at Squak Mountain State Park, from a kids race to a half marathon and a tough 50K that climbs to ridge views through mossy trees and streams. Expect technical descents, limited parking and handmade solar powered finis..

Join the 10th annual Twilight 12 Hour for a community night trail run at Flying Horseshoe Ranch in Cle Elum. Run laps on scenic single track under the stars, share snacks with fellow runners, then enjoy a cozy pancake breakfast.

Tiger Claw : Issaquah, WA (May 8-9, 2026) Tiger Claw takes place at the Issaquah Community Center in Issaquah, WA and uses trails on Tiger Mountain. The course features steep uphills and focused downhills on rugged Pacific Northwest terrain..

Run wooded trails through Battle Point Park and Grand Forest at the Trillium Trail Run on Bainbridge Island. Pick 5K, 10K or a kids fun run while supporting the Trails Connect Bainbridge Island campaign to build and maintain local trails.

Run scenic trail loops at Soaring Eagle Regional Park in Sammamish on May 16, 2026 with 5K, 10K or half marathon routes through rooty forest trails. This cupless event features solar powered handmade finisher swag and a youth discount.

Run scenic single and double track trails on Vashon Island with 50K, 20 mile and 10 mile options on a looped course through Island Center Forest featuring steep climbs and rooty technical sections. Entries are capped at 200 and registration..

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..

The Super Marathon & Half Marathon will take place in Snoqualmie Pass on Saturday 20 June 2026. You can run between 21 and 42 kilometers.

Yeti Ultra Trail Washington on June 26 to 27, 2026 offers distances from 50 miles up to a new 200K on the scenic Palouse to Cascades Trail starting at Hyak Sno Park. Experience mountain and valley views, the Snoqualmie tunnel, and live timi..

Spend a weekend in the Cascades near Mount Rainier racing SISU 24 Ultra PNW with 100 mile, 24 hour solo, or team formats. Self supported trails, camp included, quirky quests and a custom wood round medal for every finisher.