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

Mar

06

Brooks Lake Sammamish Half Marathon presented by REI

Redmond, Washington, United States

$50.00 - $80.00

Running

Half-Marathon

Mar

07

Woodinville Half and 10K

Woodinville, Washington, United States

$60.00 - $70.00

Running

Half-Marathon 10K

Mar

14

Shamrock Shuffle

Spokane, Washington, United States

Free - $75.00

Running

Half-Marathon 10K 5K 0.8K +2

Mar

20

St. Paddy's Day Lucky Run 5K/10K/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Mar

27

Always Hope Easter Run Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Mar

27

SuperHeroes Run Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Mar

28

Mill Town Half Marathon, 10K and 5K

Everett, Washington, United States

$45.00 - $85.00

Running

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

Apr

03

Yakima River Canyon Marathon and Half-Marathon

Yakima, Washington, United States

$85.00

Running

Half-Marathon Marathon

Apr

10

The Split

Spokane, Washington, United States

Free - $75.00

Running

Half-Marathon 10K 5K 0.7K +3

Apr

10

Run for Bagels 5K/10K/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Apr

24

Run for Donut Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

01

Tacoma City Marathon / Half / Ghost / 10K / 5K / 1K

Tacoma, Washington, United States

$10.00 - $265.00

Running

10K 5K Marathon Half-Marathon +4