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

Run for Donut Seattle

Seattle, Washington, United States

Jan 30, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Richland RunFest

Richland, Washington, United States

Feb 5, 2027 (Fri) – Mar 5, 2027

$20.00 - $60.00

Running

Half-Marathon 10K 5K +2

Valentine's Day Run 5K/10K/13.1 Seattle

Seattle, Washington, United States

Feb 13, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Run for Chocolate 5k/10k/13.1 Seattle

Seattle, Washington, United States

Feb 13, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Woolley Trail Runs

Sedro Woolley, Washington, United States

Feb 13, 2027 (Sat)

$65.00

Running

Ultra Marathon Half-Marathon

Brooks Lake Sammamish Half Marathon presented by REI

Redmond, Washington, United States

Mar 6, 2027 (Sat)

$50.00 - $80.00

Running

Half-Marathon

Woodinville Half and 10K

Woodinville, Washington, United States

Mar 7, 2027 (Sun)

$60.00 - $70.00

Running

Half-Marathon 10K

Shamrock Shuffle

Spokane, Washington, United States

Mar 14, 2027 (Sun)

Free - $75.00

Running

Half-Marathon 10K 5K 0.8K +2

Mill Town Half Marathon, 10K and 5K

Everett, Washington, United States

Mar 28, 2027 (Sun)

$45.00 - $75.00

Running

Half-Marathon 10K 5K Military or Veteran Half Marathon +2

Yakima River Canyon Marathon and Half-Marathon

Yakima, Washington, United States

Apr 3, 2027 (Sat)

$85.00

Running

Half-Marathon Marathon

Run for Bagels 5K/10K/13.1 Seattle

Seattle, Washington, United States

Apr 10, 2027 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

The Split

Spokane, Washington, United States

Apr 10, 2027 (Sat)

Free - $75.00

Running

Half-Marathon 10K 5K 0.7K +3