Trail Running Calendar Oregon 2026-2027

Trail race on Cline Butte in Redmond, OR offering a **20 Mile** route with about 2000 ft gain and a **15K** with about 400 ft; courses mix runnable and technical trail sections with 360 degree views.

A 100-mile ultramarathon at Stub Stewart State Park with about 7,000 feet of gain across asphalt, gravel, and dirt trails, plus a new two-person Royal Ultra Relay with designated exchanges.

Trail running event in Marcola Oregon on April 4 2026 offering 50K, 25K, 10K and 5K distances. Fees vary by age and an optional tech shirt is available for $18.

Trail running at L.L. Stewart State Park near Buxton, OR on a 6.5 mile loop with lap based Quarter, Half, Three Quarter and Full Marathon options and Golden Trucker awards for top men and women.

An evening trail race series in Forest Park, Portland held in spring, summer and fall. Each five-race Series features marked hilly courses of about 4 to 7 miles, Series standings for regular participants, and a post-series awards party.

A three day trail running event in the Columbia River Gorge featuring 100K, 50K and 30K distances, chip timing, stocked aid stations and a $75,000 prize purse. The event is staged at Marine Park in Cascade Locks with Thunder Island camping..

Experience a scenic 5k through Portland’s Mt. Tabor Park featuring varied terrain and trails. This dog friendly community event supports local student scholarships and athletic facilities.

Experience the scenic multi-use trails of Central Oregon with this low-key event offering 40-mile, marathon, and 20-mile distances. Enjoy an epic post-race feast and receive unique finisher socks in the heart of Sisters.

A four race trail series at different trailheads around Bend, Oregon, with courses of 4 to 7 miles. Standings require participation in at least three races and the series concludes with awards, a raffle, and a post event gathering.

The Mudslinger Trail Run is a half marathon on the scenic trails of Blodgett, Oregon. As part of the Mudslinger Festival, runners can also tackle the Ultimate Mudslinger by combining it with a mountain bike race. Registration is limited and..

This Earth Month event features a 5K and a 1-Mile run at Colver Fields in Talent. The course might be naturally muddy, offering a unique spring run. All proceeds benefit the Outdoor Discovery Program for local students.

Experience the beauty of the Sandy River and Ancient Forest at the Oxbow Trail Runs near Portland. Choose from 5k, 10k, or Half Marathon distances in a scenic regional park for a day of nature and community.

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.

A 50K trail race in McDonald Forest near Corvallis, OR, run on maintained singletrack with scenic mountain and valley views; proceeds support local schools, mountain rescue and the OSU Research Forest.

A trail running event on May 2, 2026 at Joseph H. Stewart County Park offering 30K, 10K and 5K loop courses; the 10K includes one water-only aid station about halfway.

Sisters Country in Sisters, Oregon offers a trail 50K and a half marathon starting and finishing at Village Green Park, with mostly single track terrain, aid stations on course, and stated cut off and cancellation policies.

Join this unique timed event at Linfield University featuring distances from 1 to 12 hours and a creative Bingo Run. Complete loops on a dirt trail course to support local charities in a supportive community atmosphere.

A family friendly 5K obstacle run at Moto541 in Central Point on May 9, 2026, featuring separate Kidz Family and Adult waves. Participants must bring a signed waiver and adults need photo ID; spectators pay $10 for festival access.

A spring trail running event in Oregon’s Tillamook State Forest offering 50 mile and 55K races plus a two-day double, staged at historic Reehers Camp with marked single-track courses and staffed aid stations.

Trail races of 10 mile and 5K take place at Roxy Ann Peak in Medford on May 16 2026. Organized by Southern Oregon Runners with proceeds to Talent Middle School Cross Country and finisher socks for all.