Half-Marathon races in Washington, United States — 2026 running calendar

Sep

26

Colbert Autumn Classic Half Marathon & 4-Mile Loop

Colbert, Washington, United States

Running

Half-Marathon 6.4K

Sep

26

Oktoberfest Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Running

5K 10K Half-Marathon 1.6K +2

Sep

26

Pacific Coast Running Festival

Long Beach, Washington, United States

Running

5K Half-Marathon 10K Marathon +6

Sep

26

Medal Madness 5K, 10K, & 13.1M at Spokane, WA (39)

Spokane, Washington, United States

Running

5K 10K Half-Marathon

Sep

20

Bellingham Bay Marathon

Bellingham, Washington, United States

Running

Marathon Half-Marathon 10K 5K +2

Sep

20

Quilcene Oyster Races

Quilcene, Washington, United States

Running

Half-Marathon 10K 5K +2

Sep

19

Anacortes Half Marathon & 5k

Anacortes, Washington, United States

Running

Half-Marathon 5K

Sep

19

Medal Madness 5K, 10K & 13.1M at Everett, WA (38)

Everett, Washington, United States

Running

5K 10K Half-Marathon

Sep

19

RUN THE DAM 2026

Grand Coulee, Washington, United States

Running

Half-Marathon 10K 5K

Sep

19

Medal Madness 5K, 10K, 13.1M at Pasco, WA (38)

Pasco, Washington, United States

Running

5K 10K Half-Marathon

Sep

13

Skagit Flats Marathon, Half & 5k

Burlington, Washington, United States

Running

5K Half-Marathon Marathon

Sep

13

Tunnel Light Marathon & Half

Snoqualmie Pass, Washington, United States

Running

Marathon Half-Marathon