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

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

Seattle, Washington, United States

Sep 12, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Medal Madness 5K, 10K, & 13.1M at Everett, WA (37)

Everett, Washington, United States

Sep 12, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Overcomer 5K & 13.1 Mile Half Marathon

Pasco, Washington, United States

Sep 12, 2026 (Sat)

$70.00 - $75.00

Running

5K Half-Marathon

Medal Madness 5K, 10K & 13.1M at Camas, WA (37)

Camas, Washington, United States

Sep 12, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Skagit Flats Marathon, Half & 5k

Burlington, Washington, United States

Sep 13, 2026 (Sun)

$40.00 - $95.00

Running

5K Half-Marathon Marathon

Fall - Mud Mountain Dam Marathon & Half Marathon

Enumclaw, Washington, United States

Sep 19, 2026 (Sat)

$100.00 - $110.00

Running

Marathon Half-Marathon

Medal Madness 5K, 10K & 13.1M at Everett, WA (38)

Everett, Washington, United States

Sep 19, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Orca Half Marathon

Seattle, Washington, United States

Sep 19, 2026 (Sat) – Sep 20, 2026

$60.00 - $175.00

Running

Half-Marathon 12.9K +1

Medal Madness 5K, 10K, 13.1M at Pasco, WA (38)

Pasco, Washington, United States

Sep 19, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Medal Madness 5K, 10K, 13.1M at Vancouver, WA (38)

Vancouver, Washington, United States

Sep 19, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Anacortes Half Marathon & 5k

Anacortes, Washington, United States

Sep 19, 2026 (Sat)

$32.00 - $74.50

Running

Half-Marathon 5K

RUN THE DAM 2026

Grand Coulee, Washington, United States

Sep 19, 2026 (Sat)

$30.00 - $65.00

Running

Half-Marathon 10K 5K