Washington · 5K
Every upcoming 5K around Seattle, with start times, entry fees, finish-time stats from past editions, start-line maps, and the local run clubs to train with.
58 upcoming 5K races found · 14 with finish-time stats
Seattle 5Ks tend to surprise people. You might toe the line on a flat waterfront path with Puget Sound glittering to your left and the Olympic Mountains dead ahead, or find yourself climbing a forested bluff in Discovery Park where the city noise drops away entirely. The Burke-Gilman Trail, Alki Beach, and Green Lake loop are the backbones of the local running scene, and race routes here draw from all of them.
The weather is part of the deal. Seattle runners earn their summer races by logging dark, rainy miles through winter, and when the sun finally locks in, the views of Mount Rainier from the waterfront corridors make a 5K feel like something worth dressing up for. Club Northwest, Seattle Running Club, West Seattle Running Club, and several others keep the community tight year-round if you want company in the off-season.
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 5K 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.
Almost certainly not. Across the 15 RunSignup 5K editions in Seattle with published results on RunSesh - walkers and charity entrants included - the median finisher crossed the line at 35:28, and the median last finisher took 1:16:53. That tail is long and welcoming. Fields here have run as large as 449 finishers, so there is plenty of crowd to disappear into.
Entry fees run from $15 at the low end to $50 at the top, with $30 being the typical price. That said, 26 of the 60 races already have a price increase scheduled, so registering early is genuinely worth it here - not just a cliche.
Fall is by far the busiest stretch, with 28 races running September through November and October alone hosting 15. If your training block lands in spring, March is the quietest month with just 1 race on the calendar, so plan accordingly. Summer and winter each carry a solid number of options if fall doesn't fit.
Yes. Most of these events also offer a 10K and half marathon on the same day, which means there will be runners of every level at the start. The median winning time across the 15 editions with published results is 18:04, so the front of the field is fast - but the back of the field takes well over an hour, and nobody is rushing you out.
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. Group runs tend to concentrate around the Elliott Bay waterfront, Green Lake, Alki Beach, and the Lake Washington shoreline.
Yes, 3 races around Seattle get you off the pavement: 1 is a trail race, and 2 mix road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.
