Trail Running calendar near Seaside 2026-2027

A 100-mile ultramarathon at Stub Stewart State Park with about 7,000 feet of gain across asphalt, gravel, and dirt trails, plus a new two-person Royal Ultra Relay with designated exchanges.

Trail running at L.L. Stewart State Park near Buxton, OR on a 6.5 mile loop with lap based Quarter, Half, Three Quarter and Full Marathon options and Golden Trucker awards for top men and women.

An evening trail race series in Forest Park, Portland held in spring, summer and fall. Each five-race Series features marked hilly courses of about 4 to 7 miles, Series standings for regular participants, and a post-series awards party.

Experience a scenic 5k through Portland’s Mt. Tabor Park featuring varied terrain and trails. This dog friendly community event supports local student scholarships and athletic facilities.

Experience the beauty of the Sandy River and Ancient Forest at the Oxbow Trail Runs near Portland. Choose from 5k, 10k, or Half Marathon distances in a scenic regional park for a day of nature and community.

Test your hill skills in this 4.45 mile time trial at Forest Park. Experience a steep out and back course on Firelane 1 followed by a live results viewing party at a local brewery.

Join this unique timed event at Linfield University featuring distances from 1 to 12 hours and a creative Bingo Run. Complete loops on a dirt trail course to support local charities in a supportive community atmosphere.

A spring trail running event in Oregon’s Tillamook State Forest offering 50 mile and 55K races plus a two-day double, staged at historic Reehers Camp with marked single-track courses and staffed aid stations.

Join this annual run and walk through the scenic habitat of the Columbia Whitetail Deer in Skamokawa. Support local youth programs by choosing from 10k, 5k, or 2 mile distances with your favorite canine companion.

Join this 2.62 mile event at Frenchman's Bar Regional Park in Vancouver for a flat out and back course on a paved trail. Walkers, rollers, and runners are all welcome to participate in person or virtually.

Trail races in Portland’s Forest Park over the Memorial Day weekend, featuring a 50K with nearly 4,000 feet of climb and a hilly half marathon; proceeds benefit the Forest Park Conservancy and finishers receive a pint glass and postrace foo..

Trail races near Chapman, OR on June 27, 2026 offering 5K, 10K, and half marathon distances with chip timing and finisher medals. Shuttle service runs from Scappoose High School and packet pickup is available the day before.

Celebrate the holiday in Yacolt with the Bigfoot Fun Run featuring 5K and 10K courses for runners and walkers. This annual tradition offers a community focused race experience as part of an active holiday weekend.

A trail event on July 5th 2026 at Yacolt Recreation Park featuring a 50 mile ultra, a 50K option and a trail marathon, with technical climbs, scenic waterfalls, multiple aid stations, camping and a post race meal.

Join the 15th annual Ladybug Run at Cook Park for a scenic stroller friendly race along the Tualatin River. Support CDH awareness through various distances including a 5K, 10K, and kids events.

Run through the private vineyards of the Dundee Hills in Oregon. Enjoy a scenic race followed by a festival featuring tastings from over twenty world class wineries.

Event Details The Paper Maker OCR is an obstacle course race held at Lacamas Lake Regional Park in Camas, Washington. This is the event's fifth annual edition. The main course is 4 miles long, featuring 14+ obstacles built into the natural..

Camp Lug-A-Chug is a volunteer hike to carry water up a volcano for a race. It's a roughly 9-mile round trip where you can camp, share stories, and even compete for a free race entry. There's no cost to join this community effort.

Test your endurance at this six hour trail challenge where runners must complete a 5K every hour to stay in the race. Finish all six rounds at Forest Park to earn your medal and a spot on the national leaderboard.

A trail race around Mt St Helens featuring rugged single track, lava and boulder fields. The full 50K requires prior 50K experience while a 25K option covers key volcanic terrain on a shorter loop.