Which Washington cities have the most half marathons?
Seattle (32), Vancouver (16), Everett (8), Olympia (6) lead the state for Half Marathon races. Those give you the most dates to choose from if your schedule is tight.
Washington · Half Marathon
2026-2027 Half Marathons in Washington
Every upcoming Half Marathon in Washington, all 103 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
103 upcoming half marathons · 36 with finish-time stats
By the numbers
The Biggest and Longest-Running
The Washington races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
Washington Half Marathons by City
Half Marathons in Washington by Month
The Next Half Marathons in Washington
103 total Sun, Oct 25, 2026Tri-Cities Marathon Richland, WAFrom $85Details Sat, Oct 31, 2026PB&J Fuel Run 5K/10K/13.1 SEATTLE Seattle, WAFrom $65Register Sat, Oct 31, 2026Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE Seattle, WAFrom $65Register Sat, Oct 31, 2026Medal Madness 5K, 10K, 13.1M at Vancouver, WA (44) Vancouver, WAFrom $65Register Sat, Nov 7, 2026Gobbler 5K, 10K, & 13.1M at Everett, WA (45) Everett, WAFrom $65Details Sun, Nov 8, 2026Run the Bay University Place, WAFrom $94Details Sat, Nov 14, 2026Gobbler 5K, 10K & 13.1M at Olympia, WA (46) Olympia, WAFrom $65Details Sat, Nov 14, 2026Gobbler 5K, 10K, & 13.1M at Everett, WA (46) Everett, WAFrom $65Details Sat, Nov 14, 2026Run for Mental Health 5K/10K/13.1 SEATTLE Seattle, WAFrom $65Register Sat, Nov 14, 2026Veterans Day Freedom Run 5K/10K/13.1 SEATTLE Seattle, WAFrom $65Register Sat, Nov 14, 2026Gobbler 5K, 10K, & 13.1M at Camas, WA (46) Camas, WAFrom $65Register Sat, Nov 21, 2026Gobbler 5K, 10K, & 13.1M at Everett, WA (47) Everett, WAFrom $65Details
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 Oct 25, 2026.
Common Questions About Running a Half Marathon in Washington
When are most half marathons held in Washington?
November is the busiest month for Half Marathon races in Washington, with 17 of the 103, followed by May with 14. If you are flexible on the date, that is the quickest way to narrow things down.
Are Washington Half Marathon races beginner-friendly?
Yes, for the most part. Across the 36 Half Marathon races in Washington with published results, the typical median finish is around 2:13:10, which means half of every one of those fields came in slower than that. Recreational runners and walk-runners are the bulk of these fields, not the exception.