Trail Running calendar near Oak Grove 2026-2027

A 5k cross country meet on September 19, 2026, at Alderbrook Golf Course in Tillamook, OR, run on a championship-style course with most of the route on shortly clipped fairways.

A long running cross country meet at Camp Rilea near Seaside Oregon featuring multiple flagged courses, chip timing, team lodging, live drum corps, and youth divisions.

Experience a timed multi surface race along the Santiam River in Stayton. Choose from 10K, 5K, or 3K distances and celebrate your finish with a commemorative pint glass at a local brewery.

A 3.1 mile obstacle run with 22 symbolic obstacles representing the journey from captivity to liberation. Held in Happy Valley, OR on September 26, 2026, all proceeds support organizations that fight human trafficking and survivor rehabilit..

Mission Possible at Willamette Mission State Park on 26 September 2026 offers chip-timed 5K and 10K trail races plus accessible All Abilities 2.25-mile and 1.6-mile loops, with volunteers on course and post-race pancakes and snacks.

A five-race cross country series in Portland parks with separate men’s and women’s races, options for non-binary entrants, race distances of 5K 6K and 8K, and both series and individual registration fees.

A trail running event at Teacup Ski Trail System on Sept. 27 with a new course and three distances, including youth and kids races. The route features lake views, varied terrain, one water station, and on-site parking and restrooms.

A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.

A last person standing trail race on Hamilton Island in the Columbia River Gorge where runners repeat a 4.13 mile loop each hour and must finish each loop in under 60 minutes to continue until one runner remains.

A 25K trail race in Corvallis, OR on October 4, 2026, presented by a local non-profit and included in the Corvallis Trail Series. Registration closes September 30, entries include a shirt, and proceeds support local trail and rescue program..

An in-person and virtual event on October 4, 2026 in Gresham featuring a 5K, a kids dash for ages eight and under, and a virtual run/walk. Registration opens in April and fees vary by event.

First annual 5K on October 10, 2026 at North Clackamas Park Complex in Milwaukie on a flat mostly paved course with proceeds supporting local nonprofits.

A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.

A three-day trail running event at Silver Falls State Park in Silverton, Oregon, offering distances from 5K to 50K. Registration opens Aug 1 and closes Oct 11, 2026, with fees that vary by race distance.

Elk-Kings is a Tillamook Forest trail race series based at Smith Homestead offering a technical 25K summiting Elk and Kings, a 50K along the Wilson River Trail, and a new 11 mile point to point through river-side forest.

Looped 10K course near St. Paul OR on October 24, 2026 offering 50 mile, 50 km, 30 km and a kids 1 km run with cupless aid stations and set time limits.

A fall-themed running event at Pacific Community Park with youth races and an open 5k on mostly grass and compact trail. Medals go to the top 15 in each race and the top boy and girl receive a Halloween blanket.

A low-key series of Wednesday evening trail races in Portland's Forest Park with three five-race Series April to October, 4 to 7 mile hilly courses and Series standings.

Trail races through Columbia River Gorge scenery with 25K point to point and a 50K loop, finishing at Marine Park in Cascade Locks.

A nonprofit trail event in Klickitat, WA, featuring a half marathon and 5K along the Klickitat River, shuttle access to trailheads, aid stations, post-run chili with a vegetarian option, and awards for top finishers.