5K races in Washington, United States — 2026 running calendar

Oct

24

Greenlake 5K and Wellness Festival

Seattle, Washington, United States

$35.00 - $55.00

Running

5K

Oct

24

Scary Run

Washougal, Washington, United States

$62.00 - $102.00

Running

5K 10K 15K

Oct

24

West Seattle Monster Dash 2026

Seattle, Washington, United States

$45.00

Running

5K

Oct

24

Haunted 5K, 10K, & 13.1M at Spokane, WA (43)

Spokane, Washington, United States

$30.00 - $65.00

Running

5K 10K Half-Marathon

Oct

24

Boots & Boogie 5K

Lynden, Washington, United States

$30.00

Running

5K

Oct

25

Snoqualmie Valley Harvest Run

Snoqualmie, Washington, United States

$5.00 - $42.00

Running

5K 10K Kids Dash

Oct

25

Monster Dash 5K and Kids' Fun Run

Spokane, Washington, United States

$17.00 - $35.00

Running

5K 1.6K

Oct

25

Captain Jack's Treasure Run

Redmond, Washington, United States

$50.00 - $60.00

Running

5K 8K 12K

Oct

25

Run Scared

Seattle, Washington, United States

$50.00 - $60.00

Running

10K 5K 4K

Oct

31

PB&J Fuel Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Oct

31

Haunted Hustle 5K & 10K

Puyallup, Washington, United States

$40.00 - $45.00

Running

5K 10K

Oct

31

Cougar Mountain Trail Run Series (October)

Bellevue, Washington, United States

$40.00 - $100.00

Trail running

Ultra 31.4K 12.2K 5K