Washington · 10K
Every upcoming 10K around Seattle, with start times, entry fees, finish-time stats from past editions, start-line maps, and the local run clubs to train with.
38 upcoming 10K races found · 8 with finish-time stats
Seattle running is shaped by the city's hills and water in equal measure. You can string together a flat Elliott Bay waterfront loop past the Olympic Sculpture Park and Myrtle Edwards Park, then find yourself grinding up a Magnolia bluff thirty minutes later. The Burke-Gilman Trail and Green Lake draw the weekday crowd; Discovery Park and Lincoln Park reward the ones willing to climb.
Weather here is real. Winters are long, chilly, and wet, which means runners in Seattle have already logged months of damp miles on well-lit urban corridors by the time race day shows up. Summer arrives sharply and spectacularly, with Mount Rainier visible from the waterfront on a clear August morning in a way that makes a 6.2-mile effort feel genuinely cinematic.
By the numbers
The Seattle races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
Train for it
The fastest way to a start line is a standing group run. These Seattle clubs welcome 10K runners of all paces.
Browse all Seattle run clubs →How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Across the 8 RunSignup 10K editions with published results on RunSesh - walkers and charity entrants included - the median finisher crossed the line at 1:00:12, the median winner at 34:38, and the last finisher at 1:51:27. The median field size was 133 runners, so these are not anonymous crowds where you disappear. There is real spread from front to back, and the back of the pack is well represented.
Fall is your best window, with 17 races running September through November and October alone carrying 8 of them. Spring is thin - only 1 race runs March through May - so if your training block peaks in spring, you may need to plan ahead or look at the summer calendar, which holds 9 races.
Entry fees range from $25 to $78, with a typical entry at $30. Seven races already have a price increase scheduled, so registering early on those is worth doing. The $78 race is the 17th Lake Union 10K Run/Walk; most of the others cluster at that $30 mark.
The median field size of 133 runners across races with published results means you will not be one face in thousands, but you will have company throughout. The back of those fields ran as late as 1:51:27, so the course stays open well past the median.
A first-timer who runs and walks will not be alone out there. Thirty-five of the 37 races also say they give a shirt, which helps race day feel like an occasion.
Seattle has a strong club scene. Club Northwest, Seattle Running Club, West Seattle Running Club, Cowgill Trail Collective, Club Seattle Runners Division, Eastside Runners Club, Seattle Running Collective, and Seattle Front Runners all operate here. Green Lake, the Elliott Bay waterfront, and Alki Beach in West Seattle are where group runs naturally concentrate, with post-run spots close by.
Yes, 2 races around Seattle get you off the pavement: 2 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.
