Trail Running calendar near Gaston 2026-2027

A 3.1 mile obstacle course in Happy Valley with 22 symbolic obstacles supporting Guardian Group’s work against human trafficking, featuring live music, food carts, and an event T-shirt for registered participants.

At Willamette Mission State Park, Mission Possible offers chip-timed 5K and 10K trail races plus accessible 2.25- and 1.6-mile All Abilities loops, volunteers on course, and post-event pancakes; part of fees support the All Abilities event.

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 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 based at the OSU Forestry Cabin, part of the 2026 Corvallis Trail Series. Entry includes a race shirt, proceeds support local trail work, Corvallis Mountain Rescue Unit, and a shoe assistance 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.

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..

Three fall trail races in Oregon’s Tillamook Forest: a technical 25K summiting Elk and Kings, a 50K along the Wilson River Trail, and a new 11-mile point-to-point through forested terrain.

Experience the 16th annual trail running event at Silver Falls State Park featuring three different distances. Choose from a 50K marathon or 7 mile route through the scenic terrain of Silverton Oregon.

An annual October ultra at Champoeg State Park with 30K, 50K and 50 mile options on a mostly paved 10K loop. The event features aid stations, a cupless policy, drop bags, pacer rules and gender inclusive awards.

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..

Thunder River on October 31, 2026 features a 25K point to point course and a 50K lollipop loop through the Columbia River Gorge. Both races finish at Marine Park in Cascade Locks and include a final mile loop around Thunder Island.

A 7-mile single-track trail race at Dog Mountain in the Columbia River Gorge that climbs about 3 miles and 3,000 ft to the summit, then descends roughly 4 miles, with mountain and river views plus on-site food and awards.

The Hagg Mud 50K/25K will take place in Gaston on Saturday 13 February 2027. You can run between 25 and 50 kilometers.

A trail event at Silver Falls State Park on February 28, 2026 offering quarter and half marathon options plus a 12 mile ruck challenge. The ruck requires a 35 lb pack or 40 lb vest and courses use much of the Trail of Ten Falls.

Trail distances through fern-lined forest at Alsea Falls near Monroe, Oregon, with Half Marathon, 10K, and 5K options and post-race pizza and beverages.

Gorge Waterfalls runs April 16 to 18, 2027 at Marine Park in Cascade Locks, Oregon, with 100K, 50K and 30K trail courses through the Columbia River Gorge. Registration opens October 5, 2026.

A half marathon on forested trails in Blodgett, Oregon, the Mudslinger Trail Run follows rolling hills and wooded routes and sits alongside a paired mountain bike competition with food available onsite.