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

Apr

10

The Split

Spokane, Washington, United States

Free - $95.00

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

17

Medal Madness 5K, 10K, 13.1M at Vancouver, WA (16)

Vancouver, Washington, United States

$30.00 - $65.00

Running

5K 10K Half-Marathon

Apr

24

Run for Donut Seattle

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

01

Spring Classic Duathlon, Half, 10k & 5k

Vancouver, Washington, United States

$59.00 - $147.00

Duathlon Running

Individual Duathlon Duathlon 2 Person Relay Duathlon 3 Person Relay Half-Marathon +2

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

May

02

Kirkland Half Marathon & 5K

Kirkland, Washington, United States

$12.00 - $81.00

Running

5K Half-Marathon 1K

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

08

San Juan Island Half

Friday Harbor, Washington, United States

$15.00 - $113.00

Running

Half-Marathon 0.6K

May

08

Snohomish Women's Run

Everett, Washington, United States

$50.00 - $97.00

Running

Half-Marathon 10K 5K +2

May

15

Capital City Marathon

Olympia, Washington, United States

Free - $75.00

Running

1.9K Marathon Half-Marathon 8K

May

15

Pirate 5K, 10K, 13.1M at Vancouver, WA (20)

Vancouver, Washington, United States

$30.00 - $65.00

Running

5K 10K Half-Marathon