Trail Running calendar near Siler 2026-2027

We have found 115 Trailruns within 80 miles of Siler. See below where and when you can find the races.

Cirque Series at Crystal Mountain is a 7.9 mile trail race with 2,614 feet of vertical gain on September 19, 2026. Sport, Expert and Pro divisions offer prizes and series points, and timing is by disposable bib chip.

Ultra Fest in Easton, Washington offers 100 mile, 100k, 50 mile, 50k and 25k races on a mostly flat gravel Foothills Trail with lakeside and mountain scenery. The event provides on-site parking, crew access, stocked aid stations, and distan..

A remote mountain ultrarace near Cle Elum, WA on September 19 and 20, 2026 offering *100M*, *50M*, and *50K* courses with large elevation gain, remote aid stations and required safety gear. The 100 mile entry includes qualifying and trail w..

A 5K themed walk or run at Magnuson Park with Villain Zones and a Heroes Village, featuring mixed gravel and trail sections, mild inclines, and welcome leashed dogs and suitable strollers; costumes are encouraged.

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.

A trail running event on September 27 at the Teacup Ski Trail System with 7.5 km, a 2.2 km youth race and a 1.3 km kids race. The course mixes single track, forest roads and a climb back to the cabin finish.

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..

October 2026

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 two day mountain running event and outdoor festival in North Bend, Washington featuring a 30k Skyline championship, a Mt Si vertical kilometer and a Little Si 10k, with awards, finishers medals and local outdoor exhibits.

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.

The North Bend Skyline 30K will take place in North Bend on Monday 5 October 2026.

A six hour trail running event on the Swauk Forest Discovery Trail near Blewett Pass on October 10, 2026. The 2.45 mile single track loop has about 650 ft of climbing and features a fall themed potluck aid station and a post race dinner opt..

Trail races on the Middle Fork and CCC trails in North Bend, WA, on October 10, 2026. Distances from 10k to 50k feature river valley scenery, aid stations, and some unbridged creek crossings.

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..

Carkeek 12 Hour is a looped trail event at Carkeek Park offering 12 hour and 6 hour options on a 1.93 mile loop with 436 feet gain per lap. The 2026 in-person event is October 24 and a virtual option runs October 1 to 31 with costume prizes..

Two trail races at Coyote Wall in the Columbia River Gorge on October 24 and 25, 2026. The event features a 55K with 8,200 ft climb and a 25K with 3,900 ft climb across technical terrain with staffed aid stations and community support.

A costumed community event at Lincoln Park featuring a trail 5K, kids dashes, and a virtual shirt option to support South Seattle College Cooperative Preschools. Registration includes a Monster Dash shirt and the 5K includes a timed bib.

An evening team relay in Ten Trails where teams of one to three hunt and return six hidden ghosts in Civic Park; free registration, prizes for fast finish, best team name, and best costume.

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.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.