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

Oct

31

Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Oct

31

PB&J Fuel Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Nov

14

Veterans Day Freedom Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Nov

28

Thanksgiving Gobble Trot Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Nov

28

2026 Seattle Ghost Marathon, Half & 50K

Seattle, Washington, United States

$165.00

Running Trail running

Marathon Half-Marathon Ultra

Dec

12

Sunrise Marathon 5K/10K/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Dec

26

A Merry Christmas Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Dec

26

New Year's Run 5K/10K/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Jan

16

Mlk Jr. Freedom Run 5K/10K/13.1 Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Jan

30

Coffee Lover Run Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Feb

13

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

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Feb

14

My Better Half Marathon

Seattle, Washington, United States

$45.00 - $94.00

Running

Half-Marathon 10K 5K