Trail Running calendar near Seaside 2025-2026

Join a scenic, hilly fundraiser at Mt. Tabor Park in Portland to benefit Friends of Mt. Tabor Park. Choose a 10K, 5K or kids 5K for ages 12 and under and tackle mixed paved and dirt trails around the volcanic hill.

Autumn Leaves at Champoeg State Park offers 10K loops for 30K, 50 km and 50 mile distances plus a free kids run with pre registration. Flat paved and single track loops, frequent aid stations and cozy fall vibes.

The Willapa Trail Festival is a multi-distance trail running event held in Chehalis, Washington, with races from 5K to 100 miles. Runners start and finish at Owl and Olive Cafe, using the flat, fast Willapa Hills State Park Trail along the..

Run scenic trails and beaches at Fort Stevens State Park near the Columbia River with distances from 5K to half marathon and a 12 mile ruck challenge with a 35 pound pack. Enjoy flat paved paths, lake views and a historic park setting.

Event overview The Hagg Mud 50K/25K is scheduled for February 14, 2026, at Henry Hagg Lake in Scoggins Valley Park near Gaston, Oregon. The event takes place on the C-Ramp Recreation Area and is held on ancestral lands of the Kalapuya, Clat..

Run scenic river and forest trails at Oxbow Regional Park with 5k, 10k and half marathon options on April 26, 2026. Limited to 150 runners, the cupless event features aid stations, post race food and an Oxbow cup for root beer floats.

Firelane Trail Trial is a hill-climbing time-trial held in Forest Park, Portland. The 4.45-mile out-and-back course runs up Firelane 1 to the top and back, with 1,266 feet of total gain and loss (about 2.23 miles uphill with 979 feet gain)...

The Tillamook Burn Trail Run, hosted by Daybreak Racing, is a springtime trail running event held in Oregon’s Tillamook State Forest, located between Portland and the Oregon Coast. The event features two challenging races: a 50-mile ultrama..

Wood You Rather is a unique checkpoint-style trail race held in Mt. Tabor Park, Portland. There is no pre-set course: at the start you’re given a map with ten highlighted checkpoints and you choose the order to visit them, deciding which tr..

Stumptown Trail Runs is a Memorial Day weekend trail race in Forest Park, Portland, Oregon. The event offers Portland’s only 50K and a half marathon, attracting locals and visitors to the city’s backyard trails. The 50K route climbs about 4..

Bigfoot Fun Run takes place in Yacolt, Washington (ZIP 98675) as part of the town’s weekend of racing. The event offers a 5K Run/Walk and a 10K Run/Walk, with maps available for both courses to help participants plan their routes. The atmos..

Volcanic is Go Beyond Racing’s Mt. St. Helens race in Washington state, offering a grueling 50K+ and a 25K option.The 50K course follows the Loowit single-track to circumnavigate the volcano, featuring large boulder fields, river crossings,..

Challenge yourself to a scenic 20 mile single track around the southwest flank of Mount St. Helens, crossing lava fields, streams and old growth forest. Start at Marble Mountain Sno Park and tackle this rugged trail with a nine hour cutoff.

Backcountry Rise (August 29, 2026) Backcountry Rise is a trail race held within the Mount St. Helens National Volcanic Monument. The event uses the Mount St. Helens Science & Learning Center above Coldwater Lake as its base camp. Course..

The 36th Three Course Challenge returns September 26, 2026 at Camp Rilea near Seaside Oregon with middle and high school cross country races across three scenic courses. Live drum corps and team awards add to the excitement.