Trail Running calendar near Seaside 2026-2027

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.

A low-key evening trail running series in Forest Park, organized as three Series of five races with courses around 4 to 7 miles. The Series includes standings, a post-Series awards gathering, and benefits the Forest Park Conservancy.

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.

A multi-distance loop event on October 24, 2026 near St. Paul, OR, featuring 50 mile, 50 km, 30 km and a free 1 km kids run on a mostly paved, flat 10k loop with aid stations and a cupless policy.

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 evening trail running series in Forest Park, organized as three Series of five races with courses around 4 to 7 miles. The Series includes standings, a post-Series awards gathering, and benefits the Forest Park Conservancy.

A flat out and back trail festival on the Willapa Hills State Park Trail in Chehalis WA, offering distances from 5K to 100 miles with multiple aid stations and nonprofit race organization.

A community holiday running event in Camas on December 19, 2026 featuring a 5k and a Dirty Santa 10k trail run, with post-race cookies, cocoa and a visit from Santa.

A fundraiser in La Center with 5K and 10K run/walk courses that start and finish at La Center High School, followed by a pancake breakfast benefiting the high school volleyball program and awards for top finishers.

A trail ultramarathon at Henry Hagg Lake near Gaston OR offering 50K (two laps) and 25K (one lap) around muddy single-track lake trails with cupless aid stations, finisher socks and gender-divided awards.

A 100-mile ultramarathon in Stub Stewart State Park, Oregon, featuring forest and rail-trail terrain, about 7,000 ft elevation gain and over 25 crew access points. A 10% registration tax funds prize money for the fastest male and female fin..

A one-course trail event at L.L. Stub Stewart Memorial State Park on April 25, 2027 where participants choose one of four distances by completing laps of a 6.5 mile loop. Top male and female finishers in each distance receive Bivouac Golden..