Trail Running calendar near Seaside 2026-2027

We have found 39 Trailruns within 80 miles of Seaside. See below where and when you can find the races.

A family oriented trail event on April 26, 2026 at Oxbow Regional Park near Gresham offering 5k, 10k and a Half Marathon through riverfront trails, forest, and ridge terrain, with aid stations, picnic facilities, and a 150 runner limit.

May 2026

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.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

Timed loop event at Linfield University’s Wellness Trail in McMinnville on May 9, 2026 offering one, three, six, eight and twelve hour options, a four loop team relay, and bingo lap races on an about 1.5 mile course.

The Tillamook Burn Trail Run runs May 16 and 17, 2026 at Reehers Camp in Tillamook State Forest. Distances include a 50 mile, a 55K, or a two day double through waterfalls, stream crossings and second growth forest.

A checkpoint run at Mt Tabor Park where runners get a map, pick their own routes, and try to collect the most checkpoints within two hours. Solo and team entries are available and finishing runners receive a mug plus event refreshments.

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.

A 2.62-mile out-and-back on the paved double-wide trail at Frenchman's Bar Regional Park in Vancouver WA, with on-site gear pick-up, swag, parking for a fee, and a virtual participation option.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

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..

June 2026

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

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.

July 2026

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

A scenic community run or walk near Mossyrock Park offering a 5K and an 8K Hill Challenge that crosses Mossyrock Dam and provides views of Riffe Lake. Family pricing and age-based fees apply; partial refunds available until June 13.

Trail ultramarathon in Yacolt, Washington offering 50 miles, 50K and a trail marathon on forested routes with multiple aid stations and tent camping available.

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 private vineyards in Dundee Hills with half, quarter, and 5K options plus a virtual race and a post-race wine tasting festival featuring many wineries.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

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..

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