Trail Running calendar near Seaside 2026-2027

A spring trail race weekend in Tillamook State Forest with 50 mile, 55K and double options. Courses wind through second growth rainforest with waterfalls, stream crossings, aid stations and a post race meal.

A two-hour checkpoint run at Mt. Tabor Park where participants get a map, pick their own routes, and try to collect as many checkpoints as possible. Solo and team entries are available with prizes for top finishers.

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 community 1.5 mile run in Ocean Shores on May 16, 2026 with separate races for 4th to 6th grade and for all other ages; registration is free and participants receive shirts.

Micah's Mini Marathon is a 2.62 mile out and back at Frenchman's Bar Regional Park in Vancouver, WA on May 17, 2026, run on a very flat paved trail with onsite gear pick up and a virtual participation option.

A low-key Wednesday evening trail race series in Forest Park, Portland, with three seasonal five-race Series and hilly courses of about 4–7 miles. The Series supports the Forest Park Conservancy and includes standings and a post-series gath..

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..

A low-key Wednesday evening trail race series in Forest Park, Portland, with three seasonal five-race Series and hilly courses of about 4–7 miles. The Series supports the Forest Park Conservancy and includes standings and a post-series gath..

A low-key Wednesday evening trail race series in Forest Park, Portland, with three seasonal five-race Series and hilly courses of about 4–7 miles. The Series supports the Forest Park Conservancy and includes standings and a post-series gath..

Trail race on June 27, 2026 in Chapman, Oregon with 5K, 10K and half marathon courses from Ruley Trailhead. Chip timed event with packet pickup the day before and shuttles from Scappoose High School to the trailhead.

A low-key Wednesday evening trail race series in Forest Park, Portland, with three seasonal five-race Series and hilly courses of about 4–7 miles. The Series supports the Forest Park Conservancy and includes standings and a post-series gath..

Choose a 5K or the 8K Hill Challenge on trails that cross Mossyrock Dam, with Riffe Lake views and a short cross-country section. Family pricing and youth rates are available; partial refunds permitted before June 13.

A trail ultrarun in Yacolt, WA on July 5, 2026 offering 50 mile, 50K and a Purgatory Trail Marathon. The route features an escorted transfer to Moulton Falls, technical Tarbell Trail loops, waterfalls and multiple aid stations.

A stroller friendly community race on July 11, 2026, through Cook Park and Tualatin River green spaces in Tigard, offering in-person and virtual 5K and 10K options plus multiple kids events. Proceeds support the Ladybug CDH Foundation.

A vineyard run in Dundee offering multiple distances and a virtual option, capped at 1,100 participants. Post-race tasting features 25 wineries, with chip timing, commemorative glass, custom bibs, and medals.

A low-key Wednesday evening trail race series in Forest Park, Portland, with three seasonal five-race Series and hilly courses of about 4–7 miles. The Series supports the Forest Park Conservancy and includes standings and a post-series gath..

A forest-based obstacle event at Lacamas Lake Regional Park with a 4 miles course featuring 14+ obstacles, a new kids race for ages 4 to 8, multiple race waves, and cash prizes in the competitive division.

Outlast Portland is a six hour trail challenge where runners complete a 5K each hour and must finish each lap to continue. Finishers earn patches or a medal and top times feed a national leaderboard with cash prizes.

A low-key Wednesday evening trail race series in Forest Park, Portland, with three seasonal five-race Series and hilly courses of about 4–7 miles. The Series supports the Forest Park Conservancy and includes standings and a post-series gath..

A trail race circling Mt St Helens with 50K and 25K options over lava, boulder and forest terrain. The 50K requires prior 50K completion and specific mandatory safety gear.