Half-Marathon races near Seattle, Washington — 2026 running calendar

Feb

27

Run For Mental Health Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Feb

27

Run Together Against Breast Cancer Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +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

Apr

10

Run for Pb&J 5k/10k/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

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

08

Run for Chocolate 5k/10k/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

29

SuperHeroes Run Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Jun

19

Run Juneteenth Day 5K/10K/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

18

The Brooks Orca Half Marathon presented by Rei

Seattle, Washington, United States

$60.00 - $160.00

Running

Half-Marathon 12.9K +1

Oct

17

The Salty Half and 10K too!

Seattle, Washington, United States

Running

Half-Marathon 10K