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

Sep

12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

19

Orca Half Marathon

Seattle, Washington, United States

$91.00 - $183.00

Running

Half-Marathon 12.9K +1

Sep

26

Oktoberfest Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Oct

10

Coffee Lovers Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Oct

17

The Salty Half and 10K too!

Seattle, Washington, United States

$39.00

Running

Half-Marathon 10K

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

2026 Seattle Ghost Marathon, Half & 50K

Seattle, Washington, United States

$165.00

Running Trail running

Marathon Half-Marathon Ultra

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

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