Marathons in Washington, United States
86 upcoming races are listed in Washington, including 24 marathons, 73 half marathons and 18 ultras. The next is Northwest Series - Day 3 - WA on September 21, 2026.
October has the most races. Race pages link the official source where we have one. Confirm dates and prices with the organizer before you register.
86
Races listed
24
Marathons
October
Busiest month
16 Jun
Last updated
Go a level deeper
Links go down the map, not sideways. Each region and city has its own page of races.
Cities
Common questions
When is the next race in Washington?
Northwest Series - Day 3 - WA on September 21, 2026. The table above lists every upcoming race in date order.
Which months are busiest in Washington?
October (30), November (18), December (16), counting every upcoming race listed in Washington.
Which distances can I run in Washington?
The listed races include 24 marathons, 73 half marathons, 18 ultras, 53 10Ks and 54 5Ks. Many events offer more than one distance on the same day.
How do I confirm a race’s details?
Open the race page and check its provenance ledger, which shows where each fact came from. Then confirm the date, price and entry rules with the organizer before you register or book travel.
Spotted something wrong on this page?
Dates and prices move · tell us and we check the organizer’s source