Trail Running calendar near Olallie Lake 2026-2027

A time trial up and down Firelane 1 in Forest Park covering about 4.45 miles and 1,266 feet of elevation change. Waves of runners start every ten minutes and a post-race viewing party with livestream and refreshments is held at Great Notion..

A 50K trail ultramarathon in OSU’s McDonald Forest featuring smooth singletrack, scenic May views and a pine-needled downhill finish, limited to 300 runners and including a hoody and socks with entry.

Point to point trail half marathon from Husum to White Salmon featuring a 1500' climb on Weldon Wagon Trail, trails lined with wildflowers, and a fully stocked aid station. Proceeds support the Volunteer Firefighters Association of SW Fire..

Trail 50K and Half Marathon in Sisters Oregon on May 3, 2026, both start and finish at Village Green Park. The event features post-race food and beer, finisher medals, and aid stations staffed by the beneficiary team.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

COCC Jungle Run in Bend, Oregon on May 7, 2026 offers 2 mile and 4 mile options at the COCC Track. Non-students pay $15 plus processing while COCC students register free with student ID and a free T shirt is available.

A four-race trail series in Bend, Oregon held April to July 2026 with courses of 4 to 7 miles. Series standings require participation in at least three races and the event is produced by Go Beyond Racing.

Timed loop event at Linfield University’s Wellness Trail in McMinnville on May 9, 2026 offering one, three, six, eight and twelve hour options, a four loop team relay, and bingo lap races on an about 1.5 mile course.

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.

A 2.62-mile out-and-back on the paved double-wide trail at Frenchman's Bar Regional Park in Vancouver WA, with on-site gear pick-up, swag, parking for a fee, and a virtual participation option.

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

A self paced summer challenge in Central Oregon from May 22 to October 1, 2026 where participants summit nine buttes and redeem a free pint at each sponsored brewery. A single butte Micro Challenge is also available.

A nighttime loop race at Cline Buttes in Redmond Oregon offering 3, 6, and 12 hour options, a Last Person Standing format, and a one-loop 5k. The 3 mile loop includes a 0.5 mile 800 foot climb and a single aid station.

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..

Smith Rock Classic in Terrebonne, Oregon features 10 mile, 50K and 50 mile trail races around Smith Rock State Park and Crooked River Grasslands. Courses include several thousand feet of elevation gain, mixed single track and gravel surface..

A low-key evening trail race series in Forest Park with three five-race Series from April to October. Races cover 4 to 7 miles, score into Series standings after four finishes, and benefit the Forest Park Conservancy.

Run through single track forest trails and across rustic bridges at Timothy Lake. This Oregon trail event offers marathon and half marathon distances with scenic views of Mt. Hood in the Cascade Mountains.

The Dirty Half is a 13.1 mile trail race near Bend, Oregon on June 6, 2026, featuring an initial paved section that leads into dirt and single track through National Forest land. Registration has regular and late pricing and every finisher..

A community trail event in Corvallis offering 30K, 8K, a 2 Miler and a 1/4 mile Kids Run, with routes through Bald Hill and Fitton Green. Proceeds support the Greenbelt Land Trust Trail Fund and same-day registration is available.

A 31 mile 50K trail ultramarathon along the McKenzie River near Blue River Oregon, passing waterfalls, Clear Lake and Tamolitch Pool. Aid stations occur every 4 to 6 miles and the event is cupless with shuttle service included.