Race Discovery

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

190 events found

Luau 5K, 10K, & 13.1M at Everett, WA (19) logo
May
09

Luau 5K, 10K, & 13.1M at Everett, WA (19)

Everett, Washington, United States
Running
5K 10K Half-Marathon
Snohomish Women's Run logo
May
09

Snohomish Women's Run

Everett, Washington, United States
Running
Half-Marathon 10K 5K +2
Luau 5K, 10K, & 13.1M at Olympia, WA (19) logo
May
09

Luau 5K, 10K, & 13.1M at Olympia, WA (19)

Olympia, Washington, United States
Running
5K 10K Half-Marathon
San Juan Island Half logo
May
09

San Juan Island Half

Friday Harbor, Washington, United States
Running
Half-Marathon 0.6K
Sunrise Marathon 5K/10K/13.1 SEATTLE logo
May
02

Sunrise Marathon 5K/10K/13.1 SEATTLE

Seattle, Washington, United States
Running
5K 10K Half-Marathon 1.6K +2
Never Say Never Half Marathon & 10K logo
May
02

Never Say Never Half Marathon & 10K

Tieton, Washington, United States
Running Walking
Half-Marathon 10K
Luau 5K, 10K, & 13.1M at Everett, WA (18) logo
May
02

Luau 5K, 10K, & 13.1M at Everett, WA (18)

Everett, Washington, United States
Running
5K 10K Half-Marathon
Cinco De Mayo Run 5K/10K/13.1 SEATTLE logo
May
02

Cinco De Mayo Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States
Running
5K 10K Half-Marathon 1.6K +2
Three Lakes Triathlons and Kings Market San Juan Island Runs logo
Feb
15

Three Lakes Triathlons and Kings Market San Juan Island Runs

Friday Harbor, Washington, United States
Triathlon Running
Ultra 25.3K Half-Marathon 10K +5
Race Through Washington 1M, 5K, 10K, 13.1, 26.2 - Now Only $20! logo
Feb
01

Race Through Washington 1M, 5K, 10K, 13.1, 26.2 - Now Only $20!

Tacoma, Washington, United States
$20.00
Running
1.6K 5K 10K Half-Marathon +1