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

Ninja 5K, 10K, & 13.1M at Olympia, WA (34)

Olympia, Washington, United States

Aug 22, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Ninja 5K, 10K, & 13.1M at Spokane, WA (34)

Spokane, Washington, United States

Aug 22, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Popsicle 5K/10K/Half - Richland

Richland, Washington, United States

Aug 22, 2026 (Sat)

$35.00 - $60.00

Running

5K 10K Half-Marathon +5

PeaceHealth Appletree Marathon

Vancouver, Washington, United States

Aug 29, 2026 (Sat) – Aug 30, 2026

$50.00 - $139.00

Running

5K Marathon Half-Marathon +2

Medal Madness 5K, 10K, 13.1M at Vancouver, WA (35)

Vancouver, Washington, United States

Aug 29, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Run to Breast Cancer 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Aug 29, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Iron Horse Half Marathon

North Bend, Washington, United States

Aug 30, 2026 (Sun)

$52.00 - $102.00

Running

Half-Marathon

Medal Madness 5K, 10K, 13.1M & 26.2M at Everett, WA (36)

Everett, Washington, United States

Sep 5, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Redmond Harvest Half Marathon

Redmond, Washington, United States

Sep 7, 2026 (Mon)

$59.00

Running

Half-Marathon

Beat the Blerch

Carnation, Washington, United States

Sep 12, 2026 (Sat)

$40.00 - $120.00

Running

5K 10K Half-Marathon 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

Cascade Express Marathon & Half Marathon

North Bend, Washington, United States

Sep 12, 2026 (Sat)

$141.00 - $171.00

Running

Marathon Half-Marathon