6 aidHalf Marathons Near Seattle, WA
As of October 6, 2026, Crewable lists 20 upcoming half marathons near Seattle, WA from October 2026 to May 2027. The next is Coffee Lovers Run 5K/10K/13.1 SEATTLE on October 10 in Seattle, WA. Registration is open for 15.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
With aid station data
6 aid
in 4 days
Haunted 5K, 10K, & 13.1M at Everett WA (41)
Everett, WA
Half Marathon10K+1
Open until Oct 10from $30
1 aidin 11 days
Haunted 5K, 10K & 13.1M at Everett, WA (42)
Everett, WA
Half Marathon10K+1
Open until Oct 17from $30
2 aidRace calendar
October 2026
11 races2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K
Snohomish, WAMarathonHalf Marathon+2Open until Oct 12from $55Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE
Seattle, WAHalf Marathon10K+2Open until Oct 31from $30
November 2026
5 racesDecember 2026
1 raceMarch 2027
1 raceApril 2027
1 raceMay 2027
1 raceQuick answers
What is the next half marathon near Seattle, WA?
Coffee Lovers Run 5K/10K/13.1 SEATTLE, on Saturday, October 10, 2026, in Seattle, WA. Distances: Half Marathon, 10K, 5K.
What is the closest half marathon to Seattle?
Coffee Lovers Run 5K/10K/13.1 SEATTLE in Seattle, WA, about 1 mile from Seattle, on October 10, 2026.
How many half marathons near Seattle, WA have open registration?
15 of the 20 list registration as open as of October 6, 2026, including Coffee Lovers Run 5K/10K/13.1 SEATTLE, Cookie Run 5K/10K/13.1 SEATTLE and Haunted 5K, 10K & 13.1M at Olympia, WA (41).
What is the busiest month for half marathons near Seattle, WA?
October 2026, with 11 of the 20. November 2026 follows with 5.
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