Best Half Marathons in Oregon & Washington for 2027
The best half marathons in the Pacific Northwest combine scenic courses with well-organized race logistics — think the Eugene Marathon's tree-lined riverside route, the UW Medicine Seattle Marathon's Space Needle-to-Lake Washington course, and destination trail races like Bend's Haulin' Aspen. Below, find upcoming half marathons across Oregon and Washington for 2026 and 2027, sorted by state and date, plus a closer look at the region's most iconic races.
Upcoming Half Marathons in Oregon
Upcoming Half Marathons in Washington
Two races define the Pacific Northwest half marathon calendar: the UW Medicine Seattle Marathon & Half Marathon, the region's oldest marathon, and the Eugene Marathon, run through Oregon's self-proclaimed "Track Town USA." Here's what makes each worth the trip.
Seattle Marathon
The UW Medicine Seattle Marathon and Half Marathon is Seattle’s original hometown marathon and the oldest marathon in the Pacific Northwest. Starting in the shadow of the Space Needle, the course showcases the pristine Pacific Northwest before looping back to finish on the AstroTurf at Memorial Stadium. And though avoiding hills in Seattle is like avoiding sand in the desert, Emerald City gems like Lake Union, Lake Washington, and the University of Washington help to temper the route’s inevitable ups and downs.
Eugene Marathon & Half Marathon
The Eugene Marathon is a beloved annual event that draws runners from all over the world to the beautiful city of Eugene, Oregon. With a rich history and a reputation for being one of the most scenic and challenging races in the Pacific Northwest, the Eugene Marathon is a must-run for any serious runner. Learn more about the history and significance of this iconic race.