Race Discovery

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

7 events found

2026 Seattle Ghost Marathon, Half & 50K logo
Nov
28

2026 Seattle Ghost Marathon, Half & 50K

Seattle, Washington, United States
$165.00
Running Trail running
Marathon Half-Marathon Ultra
Jasper Mountain Trail Fest logo
Jun
19

Jasper Mountain Trail Fest

Dayton, Washington, United States
$30.00 - $70.00
Trail running
Half-Marathon Marathon 6.9K
Backcountry Rise logo
Aug
29

Backcountry Rise

Toutle, Washington, United States
Trail running
Ultra Half-Marathon 32.2K
Devils Gulch
Jul
11

Devils Gulch

Wenatchee, Washington, United States
Trail running
Ultra Half-Marathon
Tiger Peak Challenge logo
Jun
27

Tiger Peak Challenge

Issaquah, Washington, United States
Trail running Running
8K Half-Marathon Ultra 1K
Echo Valley logo
May
30

Echo Valley

Chelan, Washington, United States
Trail running Running
10K Half-Marathon Ultra 1.6K +3
Soaring Eagle Trail Run logo
May
16

Soaring Eagle Trail Run

Sammamish, Washington, United States
Trail running Running
5K Half-Marathon 10K 1K +2