Trail Running calendar near Seaside 2026-2027

We have found 26 Trailruns within 80 miles of Seaside. See below where and when you can find the races.

Run through vibrant tulip fields at the Wooden Shoe TulipFest. Choose from a 5K, 10K, or half marathon trail course on the farm. Your registration includes entry to the festival itself.

April 2026

Conquer 100 miles on a scenic double out-and-back course through Stub Stewart State Park. The route mixes paved paths, gravel trails, and forest single-track with strong community support. A two-person relay option offers a shared ultra cha..

Run a flexible loop challenge at L.L. Stub Stewart State Park. Choose your distance on race day from the Quarter to the Full Marathon on varied, non-monotonous trails. Finish to receive a unique mug and celebrate at the post-race gathering.

Run through the ancient forest and along the scenic Sandy River at the Oxbow Trail Runs. This family-friendly event offers 5K, 10K, and Half Marathon distances in Oxbow Regional Park. Stay after the race for food and fun at the reserved pic..

May 2026

Test your hill skills in this 4.45 mile time trial at Forest Park. Experience a steep out and back course on Firelane 1 followed by a live results viewing party at a local brewery.

Race to Space offers a unique timed event on a 1.5-mile loop trail at Linfield University. Choose from classic hour-based races, a new Bingo Run format, or a team relay. Profits support charity, and the event is organized by university stud..

Experience the rugged beauty of the Oregon Coast Range with 50 mile and 55K trail races through the lush Tillamook State Forest featuring waterfalls and historic single-track trails.

Wood You Rather is a unique checkpoint run in Portland's Mt Tabor Park. Participants have two hours to strategize their own route and find as many checkpoints as they can, solo or with a team. The winners are those who collect the most chec..

Join this 2.62 mile event at Frenchman's Bar Regional Park in Vancouver for a flat out and back course on a paved trail. Walkers, rollers, and runners are all welcome to participate in person or virtually.

Explore the trails of Portland's vast Forest Park at the Stumptown Trail Runs. Choose between a 50K on Saturday or a half marathon on Monday, each with significant elevation. The event is known for its organization and scenic routes.

July 2026

The Bigfoot Fun Run is an annual July 4th tradition in Yacolt. Participants can choose a 5K or 10K run or walk. Packet pickup and registration are available on race day.

Ring the bell at the finish line of this challenging trail event in Yacolt, Washington. Choose from a 50-mile ultra marathon, a 50K, or a trail marathon, all featuring the scenic Bells Mountain and Tarbell trails. The event includes camping..

Join the 15th annual Ladybug Run at Cook Park for a scenic stroller friendly race along the Tualatin River. Support CDH awareness through various distances including a 5K, 10K, and kids events.

Run through scenic Oregon vineyards at Fueled by Fine Wine. Choose from a half marathon, quarter marathon, or 5k, followed by complimentary tasting from over twenty wineries. This event is limited to 1100 participants.

Camp Lug-A-Chug is a volunteer hike to carry water up a volcano for a race. It's a roughly 9-mile round trip where you can camp, share stories, and even compete for a free race entry. There's no cost to join this community effort.

Test your endurance at this six hour trail challenge where runners must complete a 5K every hour to stay in the race. Finish all six rounds at Forest Park to earn your medal and a spot on the national leaderboard.

August 2026

The Volcanic 50 is a rugged 50K and 25K trail race on the slopes of Mount St. Helens in Washington. The 50K circumnavigates the entire volcano on remote, technical single-track. Both races start and finish at the Marble Mountain Sno-Park in..

The Bigfoot 20 Mile Run is a trail adventure on the iconic Mount St. Helens. The single-track course takes runners past lava fields, through old-growth forests, and across streams on the volcano's southwestern flank.

Backcountry Rise offers three remote trail races in the volcanic landscapes near Mount St. Helens. Runners can choose from a 50K, 20 miler, or half marathon, all featuring significant elevation on singletrack trails. The event is based at t..

September 2026

A 5 km cross country race on a Tillamook flower farm featuring mud pits, two river crossings, wood-chipped trails and a corn maze. Two open races are held the same day with combined results and youth and adult categories.