Marathons in Washington, United States
83 upcoming races are listed in Washington, including 22 marathons, 71 half marathons and 16 ultras. The next is Colbert Autumn Classic Half Marathon & 4-Mile Loop on September 26, 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.
83
Races listed
22
Marathons
October
Busiest month
16 Jun
Last updated
| Date | Race | City | Distances |
|---|---|---|---|
| 17 Oct 2026 17Oct 26 | Haunted 5K, 10K, & 13.1M at Pasco, WA | Pasco | 21.1K · 10K · 5K |
| 17 Oct 2026 17Oct 26 | Lake Washington Half Marathon | Kirkland | 21.1K · Virtual |
| 17 Oct 2026 17Oct 26 | Larch Madness Trail Races | Washington | 50K · 25K · 15K |
| 18 Oct 2026 18Oct 26 | Girlfriends Run | Vancouver | 21.1K · 10K · 4 Miler |
| 24 Oct 2026 24Oct 26 | Chamna Chase | Richland | 21.1K · 10K · 6K |
| 24 Oct 2026 24Oct 26 | Haunted 5K, 10K & 13.1M at Camas, WA | Camas | 21.1K · 10K · 5K |
| 24 Oct 2026 24Oct 26 | Haunted 5K, 10K, & 13.1M at Olympia, WA | Olympia | 21.1K · 10K · 5K |
| 24 Oct 2026 24Oct 26 | Haunted 5K, 10K, & 13.1M at Spokane, WA | Spokane | 21.1K · 10K · 5K |
| 24 Oct 2026 24Oct 26 | Hyak Halloween | Washington | Ultra · 25K |
| 24 Oct 2026 24Oct 26 | Sammamish City Marathon | Issaquah | 42.2K |
| 25 Oct 2026 25Oct 26 | Tri-Cities Marathon | Richland | 42.2K · 21.1K · Relay |
| 31 Oct 2026 31Oct 26 | Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE | Seattle | 42.2K · 21.1K · 10K |
| 31 Oct 2026 31Oct 26 | PB&J Fuel Run 5K/10K/13.1 SEATTLE | Seattle | 42.2K · 21.1K · 10K |
| 7 Nov 2026 07Nov 26 | Gobbler 5K, 10K, & 13.1M at Everett, WA | Everett | 21.1K · 10K · 5K |
| 7 Nov 2026 07Nov 26 | Switchback Sorrows 50k Trail Race | Spokane | 50K |
| 7 Nov 2026 07Nov 26 | Willapa Trail Festival | Chehalis | 100 Miler · 50 Miler · 50K |
| 8 Nov 2026 08Nov 26 | Run the Bay | University Place | 21.1K · 10K · 5K |
| 14 Nov 2026 14Nov 26 | Gobbler 5K, 10K & 13.1M at Olympia, WA | Olympia | 21.1K · 10K · 5K |
| 14 Nov 2026 14Nov 26 | Gobbler 5K, 10K, & 13.1M at Camas, WA | Camas | 21.1K · 10K · 5K |
| 14 Nov 2026 14Nov 26 | Gobbler 5K, 10K, & 13.1M at Everett, WA | Everett | 21.1K · 10K · 5K |
| 14 Nov 2026 14Nov 26 | Run for Mental Health 5K/10K/13.1 SEATTLE | Seattle | 42.2K · 21.1K · 10K |
| 14 Nov 2026 14Nov 26 | Veterans Day Freedom Run 5K/10K/13.1 SEATTLE | Seattle | 42.2K · 21.1K · 10K |
| 21 Nov 2026 21Nov 26 | Gobbler 5K, 10K, & 13.1M at Everett, WA | Everett | 21.1K · 10K · 5K |
| 21 Nov 2026 21Nov 26 | Gobbler 5K, 10K, 13.1M at Pasco, WA | Pasco | 21.1K · 10K · 5K |
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?
Colbert Autumn Classic Half Marathon & 4-Mile Loop on September 26, 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 22 marathons, 71 half marathons, 16 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