Trail Running calendar near Renton 2025-2026

The Mount Rainier Half Marathon & Trail Events take place at Crystal Mountain Resort near Enumclaw, Washington, in the Cascade Range. This scenic race offers a half marathon along with 5K and 10K options, featuring a mix of dirt trails through towering evergreen forests, alpine meadows, and ridgelin..

Cascade Crest is a renowned 100-mile trail running event held in Easton, Washington, known for its challenging course and vibrant atmosphere. The race features over 23,000 feet of elevation gain and includes about 32 miles along the scenic Pacific Crest Trail. A unique highlight is running through t..

The Summer Eddy Trail Run, part of the Tuesday Night Trail to Grill series, takes place at St. Edward State Park in Kenmore, Washington. Offering 4-mile and 8-mile distances, the course features a mix of wide trails and twisting single track with swooping turns, moderate roots, and rocks, providing..

Dirt Circus - Seattle is a free community trail running event held in Seattle, Washington, celebrating local races, run clubs, and running culture. Organized by UltraSignup, this one-day festival features a social group run with options for a 4-mile or 6.5-mile route, followed by a lively expo at Se..

The Beast of Big Creek is a challenging mountain trail running event held at Big Creek Campground near Hoodsport on Washington's Olympic Peninsula. The highlight is a 22K (14-mile) Skyrace certified by the International Skyrunning Federation, featuring a demanding 5,300 ft vertical climb to the summ..

The Cougar Mountain Trail Run Series #4 takes place on August 9, 2025, at King County’s Cougar Mountain Regional Wildland Park in Newcastle, Washington, just 15 minutes from Seattle. This event offers three race distances: 5k, 14.5 miles, and a full marathon of 26.2 miles. The course features a vari..

Race the Reserve is a scenic running event held in Coupeville, Washington, on Whidbey Island. Scheduled for August 9, 2025, it offers multiple race distances including a 5K, 10K, half marathon, and a virtual race option. The course features a unique blend of seaside bluffs, dense forests, dirt and p..

Twilight at the Bay is a scenic running event held at Chambers Bay Loop Trail in University Place, Washington. Participants can choose from a half marathon, 10k, or 5k race, each featuring loops on a wide, paved trail with a mix of flat sections, inclines, and switchbacks. The course offers breathta..

The Olympic Mountains Trail Races, held in the Olympic National Forest near Quilcene, Washington, offer challenging trail running events over two days in August. Distances include a rugged 100K with 14,200 feet of elevation gain on mostly single-track trails, a demanding 50K featuring 8,600 feet of..

The Paradise Valley Trail Run, held at Paradise Valley Conservation Area in Woodinville, Washington, offers 5k, 10k, and half marathon distances on gently rolling trails. The course features a mix of wide promenades and narrow, winding paths through wetland cedar groves and gentle ridges, providing..

The Dark Divide Trail Races, held near Randle, Washington, offer challenging ultramarathon events through the rugged and remote Dark Divide Roadless Area in the Central Washington Cascades. The 2025 event includes a 100-mile race, a new 100K point-to-point course, a 50K, and a 15-mile fun run, all s..

The Goat Rocks Stage is a challenging 50-mile, two-day trail running event set in the stunning Goat Rocks Wilderness between Mt. Rainier and Mt. Adams in Washington.Known for its rugged alpine terrain, narrow ridgelines, and volcano views, the course offers experienced runners a high-mileage adventu..

The GOAT Run in Port Angeles, Washington, is a challenging trail running event featuring a half marathon, marathon, and 50K race along the scenic Olympic Adventure Trail. The point-to-point course traverses Kelly Ridge between Olympic National Park and the Strait of Juan de Fuca, finishing at the st..

The Cascade Express Marathon and Half-Marathon, held in Snoqualmie Pass, Washington, is renowned as one of the fastest marathon courses in the U.S. Both races feature scenic, point-to-point courses along gravel trails with stunning views of the Cascade Mountains and Keechelus Lake. The marathon offe..

Beat The Blerch is a unique running event held in Carnation, Washington, about 35 minutes from Seattle, at King County’s Tolt MacDonald Park. The race offers multiple distances including a 5K, 10K, half marathon, and full marathon. The course is a flat, out-and-back gravel trail that meanders throug..

Plain Endurance Runs, held near Leavenworth, Washington, feature challenging 100-mile and 100K races through the remote Cascade Mountains across Lake Wenatchee, Entiat, and Chelan ranger districts. The course includes about 85 miles of trails and 20 miles of forest service roads, with an elevation g..

The Brown Bear Salmon Run is a trail running event held at Snoqualmie Pass, Washington, featuring 15K and 30K distances. Hosted for the third time in 2025 in partnership with Brown Bear Car Wash, the race offers a moderately challenging course with approximately 1,900 feet of elevation gain. The rou..

Corn Maze Craze is a unique fall running event held at Bob’s Corn & Pumpkin Farm in Snohomish, Washington. Scheduled for September 13, 2025, it offers 5k and 7k distances that combine trail running with the adventure of navigating a corn maze. The course features a run along dirt farm roads through..

The Cirque Series at Crystal Mountain, Washington, is a challenging 7.7-mile trail race featuring 2,544 feet of elevation gain. Starting at the Crystal Mountain base area, runners tackle the rugged Kelly’s Gap service road before ascending to Grubstake, the race’s highest point at 6,861 feet. The co..

Ultra Fest in Easton, Washington, offers a range of ultramarathon distances including 100 miles, 100 kilometers, 50 miles, 50 kilometers, and 25 kilometers. Set in the scenic Central Cascade Mountains, the course is described as fast and mostly flat, making it ideal for first-time ultrarunners or th..