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Marathons in Washington, United States

141 upcoming marathons listed in Washington across 2 cities. Next: Interlaken Ice Cream Dash on August 4, 2026.

141marathons upcoming
2cities
August 4, 2026Next race
Marathon, Half marathon, Ultra, 10K, 5K, RelayDistances
Pasco, Washington, United States
19SEP
21.1K
Medal Madness 5K, 10K, 13.1M at Pasco, WA
Pasco, Washington, United States
September 19, 2026 SEP
Leavenworth, Washington, United States
19SEP
ULTRA
Plain Endurance Runs
Leavenworth, Washington, United States
September 19, 2026 SEP
Grand Coulee, Washington, United States
19SEP
42.2K
Run the Dam 2026
Grand Coulee, Washington, United States
September 19, 2026 SEP
Washington, United States
19SEP
ULTRA
Teeny-Way
Washington, United States
September 19, 2026 SEP
Seattle, Washington, United States
19SEP
21.1K
The Brooks Orca Half Marathon presented by REI
Seattle, Washington, United States
September 19, 2026 SEP
Bellingham, Washington, United States
20SEP
ULTRA
Bellingham Bay Marathon
Bellingham, Washington, United States
September 20, 2026 BQ Qualifier
Quilcene, Washington, United States
20SEP
42.2K
Quilcene Oyster Races
Quilcene, Washington, United States
September 20, 2026 SEP
Clarkston, Washington, United States
21SEP
ULTRA
Northwest Series - Day 3 - WA
Clarkston, Washington, United States
September 21, 2026 SEP
Washington, United States
22SEP
ULTRA
Evergreen Club
Washington, United States
September 22, 2026 SEP
Clarkston, Washington, United States
22SEP
42.2K
Northwest Series - Day 4 - WA
Clarkston, Washington, United States
September 22, 2026 SEP
Colbert, Washington, United States
26SEP
42.2K
Colbert Autumn Classic Half Marathon & 4-Mile Loop
Colbert, Washington, United States
September 26, 2026 SEP
Camas, Washington, United States
26SEP
21.1K
Medal Madness 5K, 10K & 13.1M at Camas, WA
Camas, Washington, United States
September 26, 2026 SEP
Spokane, Washington, United States
26SEP
21.1K
Medal Madness 5K, 10K, & 13.1M at Spokane, WA
Spokane, Washington, United States
September 26, 2026 SEP
Seattle, Washington, United States
26SEP
21.1K
Oktoberfest Run 5K/10K/13.1 SEATTLE
Seattle, Washington, United States
September 26, 2026 SEP
Long Beach, Washington, United States
26SEP
42.2K
Pacific Coast Running Festival
Long Beach, Washington, United States
September 26, 2026 SEP
Seattle, Washington, United States
26SEP
21.1K
Run for Donuts 5K/10K/13.1 SEATTLE
Seattle, Washington, United States
September 26, 2026 SEP
Puyallup, Washington, United States
27SEP
21.1K
Puyallup Valley Half Marathon and 10K
Puyallup, Washington, United States
September 27, 2026 SEP
Walla Walla, Washington, United States
03OCT
21.1K
Falla Walla Half Marathon, 10K & Heroes 5K Run
Walla Walla, Washington, United States
October 3, 2026 OCT
Everett, Washington, United States
03OCT
42.2K
Haunted 5K, 10K, 13.1M & 26.2M at Everett, WA
Everett, Washington, United States
October 3, 2026 OCT
North Bonneville, Washington, United States
03OCT
ULTRA
Lastest Not Fastest
North Bonneville, Washington, United States
October 3, 2026 OCT
Leavenworth, Washington, United States
03OCT
42.2K
Leavenworth Marathon & Half Marathon
Leavenworth, Washington, United States
October 3, 2026 OCT
Maple Valley, Washington, United States
03OCT
21.1K
Run for the Gnomes Half Marathon & 5K
Maple Valley, Washington, United States
October 3, 2026 OCT
Poulsbo, Washington, United States
04OCT
21.1K
Poulsbo Half Marathon & 10k
Poulsbo, Washington, United States
October 4, 2026 OCT
Seattle, Washington, United States
10OCT
21.1K
Bagel Run 5K/10K/13.1 SEATTLE
Seattle, Washington, United States
October 10, 2026 OCT

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Cities

Place Marathons
Bellingham 1
Seattle 1

Planning notes for Washington, United States

Use this region page to shortlist 141 upcoming races by date, distance, registration path, and official source.

  • Next raceInterlaken Ice Cream Dash on August 4, 2026
  • Busy monthsSeptember (38), October (30), August (27)
  • DistancesMarathon, Half marathon, Ultra, 10K, 5K, Relay
  • VerifyOpen each race page, then confirm details from its official, registration, course-map, or source link.

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