Trail Running calendar near Seaside 2025-2026

Run scenic trails around Henry Hagg Lake with 25K or 50K options, lakeside singletrack and gravel climbs for stunning views. CUPLESS aid stations, finisher socks and a lively post race party await, while the 50K enforces strict time cutoffs..

Run Forest Run at Lake Sylvia State Park near Montesano is a rugged trail race with 25K and 50K loops and about 2,900 feet of climb per loop. Camp on site and enjoy post race food while supporting local trails.

Run among blooming tulip fields at Wooden Shoe TulipFest in Woodburn, Oregon with a 5k, 10k, or half marathon across farm trails and nearby roads. Entry includes festival admission and expect varied terrain and possible mud.

Take on the Crown Stub 100, a 100 mile ultramarathon at Stub Stewart State Park on April 4, 2026, featuring about 7,000 ft of climbing across asphalt, gravel, and single track. Enjoy scenic trails, full aid stations, and a team relay option..

Run one to four 6.5 mile loops at L.L. Stub Stewart State Park to finish a 1/4, 1/2, 3/4 or full marathon on scenic rolling trails with varied climbs. Finishers get a Bivouac Racing winners mug plus post race food and beer.

Run scenic river and ridge trails at Oxbow Regional Park near Portland on April 26, 2026, with 5k, 10k, and half marathon options. Limited to 150 runners, this trail race offers unique awards and a commemorative Oxbow cup.

Run the Firelane Trail Trial on May 2, 2026 in Forest Park Portland, a steep 4.45 mile out and back up Firelane 1 with challenging grades and a live feed at the turnaround. Finish with a post race gathering at Great Notion Brewing; field ca..

Race to Space on May 9, 2026 in McMinnville on Linfield University Wellness Trail offers timed events from 1 hour to 12 hours, a 4 loop relay, and a playful Bingo Run where runners match three numbers to finish. All proceeds benefit a local..

Tackle the Tillamook Burn Trail Run in Tillamook State Forest on May 16 and 17, 2026. Choose 50 mile, 55K or a double weekend challenge over scenic singletrack with full aid stations, chip timing and a post race meal.

Explore Mt Tabor Park in a fun checkpoint run where you get a map, two hours, and the chance to collect as many checkpoints as you can. Run solo or with a team on routes of about 5 to 8 miles, then celebrate with coffee, donuts and a finish..

Celebrate Memorial Day weekend with the Stumptown Trail Runs in Portland's Forest Park, featuring the city's only 50K plus a hilly half marathon on the Wildwood Trail. Scenic, challenging courses benefit the Forest Park Conservancy and fini..

Join the Bigfoot Fun Run in Yacolt on July 4 for a festive 5K or 10K through scenic local routes. Family friendly event with day of registration and packet pickup near the library.

Camp Lug A Chug is a volunteer weekend at Marble Mountain Sno Park, Cougar WA, carrying supplies into volcano aid stations. Expect 9 mile hikes, camp meals, and a free race entry prize for the most weight carried relative to body weight.

Run the rugged Loowit Trail around Mt. St. Helens with volcanic vistas, lava fields and dense forest. Choose a 25K or the full 50K circumnavigation for a true backcountry challenge with limited entries and rustic car camping.

Run the Bigfoot 20 Mile on August 14, 2026, from Marble Mountain Sno Park near Cougar Washington along the southwestern slopes of Mount St. Helens. Enjoy single track trails through lava fields, stream crossings and old growth forest with a..

Backcountry Rise brings scenic singletrack around Coldwater Lake on Mount St Helens with 50K, 20 mile and half marathon options. Base camp at the Science and Learning Center includes parking, camping, aid stations and chip timing.

Join the 36th Three Course Challenge at Camp Rilea near Seaside, Oregon on September 26 for middle and high school cross country races with live music by The Last Regiment Drum Corps. Scenic 3k to 5k courses, team lodging and social events.

Autumn Leaves at Champoeg State Park in St Paul, OR features 30K, 50K and 50 mile multi loop races on a fast, mostly paved 10K loop with gentle rollers. Headlamp is required for the first lap and aid stations are on course.