Race Discovery

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

184 events found

Run the 509 logo
May
31

Run the 509

Deer Park, Washington, United States
Running
Half-Marathon 10K 5K
Echo Valley logo
May
30

Echo Valley

Chelan, Washington, United States
Trail running Running
10K Half-Marathon Ultra 1.6K +3
Spring - Mud Mountain Dam Marathon & Half Marathon logo
May
30

Spring - Mud Mountain Dam Marathon & Half Marathon

Enumclaw, Washington, United States
Running
Marathon Half-Marathon
Big River Race logo
May
30

Big River Race

Pasco, Washington, United States
Running
Half-Marathon 10K 5K 1.6K +1
Luau 5K, 10K, & 13.1M at Camas, WA (21) logo
May
23

Luau 5K, 10K, & 13.1M at Camas, WA (21)

Camas, Washington, United States
Running
5K 10K Half-Marathon
Luau 5K, 10K, & 13.1M at Olympia, WA (21) logo
May
23

Luau 5K, 10K, & 13.1M at Olympia, WA (21)

Olympia, Washington, United States
Running
5K 10K Half-Marathon
Luau 5K, 10K, & 13.1M at Spokane, WA (21) logo
May
23

Luau 5K, 10K, & 13.1M at Spokane, WA (21)

Spokane, Washington, United States
Running
5K 10K Half-Marathon
Run for Mental Health 5K/10K/13.1 SEATTLE logo
May
23

Run for Mental Health 5K/10K/13.1 SEATTLE

Seattle, Washington, United States
$30.00 - $45.00
Running
5K 10K Half-Marathon 1.6K +14
Memorial Day Run 5K/10K/13.1 SEATTLE logo
May
23

Memorial Day Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States
Running
5K 10K Half-Marathon 1.6K +2
Windermere Marathon logo
May
17

Windermere Marathon

Spokane, Washington, United States
Running
Marathon Half-Marathon 10K 5K +3
Reflection Run logo
May
17

Reflection Run

Washougal, Washington, United States
Running
Half-Marathon 10K 5K +2
Luau 5K, 10K, & 13.1M at Everett, WA (20) logo
May
16

Luau 5K, 10K, & 13.1M at Everett, WA (20)

Everett, Washington, United States
Running
5K 10K Half-Marathon