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

Quilcene Oyster Races

Quilcene, Washington, United States

Sep 20, 2026 (Sun)

$30.00 - $60.00

Running

Half-Marathon 10K 5K +2

Bellingham Bay Marathon

Bellingham, Washington, United States

Sep 20, 2026 (Sun)

$40.00 - $235.00

Running

Marathon Half-Marathon 10K 5K +2

Oktoberfest Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Sep 26, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Medal Madness 5K, 10K, & 13.1M at Spokane, WA (39)

Spokane, Washington, United States

Sep 26, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Pacific Coast Running Festival

Long Beach, Washington, United States

Sep 26, 2026 (Sat) – Sep 27, 2026

$22.00 - $107.00

Running

5K Half-Marathon 10K Marathon +6

Medal Madness 5K, 10K & 13.1M at Camas, WA (39)

Camas, Washington, United States

Sep 26, 2026 (Sat)

$30.00 - $65.00

Running

5K 10K Half-Marathon

Colbert Autumn Classic Half Marathon & 4-Mile Loop

Colbert, Washington, United States

Sep 26, 2026 (Sat)

$25.00 - $50.00

Running

Half-Marathon 6.4K

Falla Walla Half Marathon, 10K & Heroes 5K Run

Walla Walla, Washington, United States

Oct 3, 2026 (Sat)

$40.00 - $70.00

Running

Half-Marathon 10K 5K

Haunted 5K, 10K, 13.1M & 26.2M at Everett, WA (40)

Everett, Washington, United States

Oct 3, 2026 (Sat)

Running

5K 10K Half-Marathon

Run for the Gnomes Half Marathon & 5K

Maple Valley, Washington, United States

Oct 3, 2026 (Sat)

$40.00 - $90.00

Running

Half-Marathon 10K

Poulsbo Half Marathon & 10k

Poulsbo, Washington, United States

Oct 4, 2026 (Sun)

$68.00 - $95.00

Running

Half-Marathon 10K

Fall Classic

Tacoma, Washington, United States

Oct 10, 2026 (Sat) – Nov 22, 2026

$15.00 - $75.00

Running

5K Half-Marathon +1