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

Capital City Marathon

Olympia, Washington, United States

May 16, 2026 (Sat) – May 17, 2026

Running

1.9K Marathon Half-Marathon 8K

Soaring Eagle Trail Run

Sammamish, Washington, United States

May 16, 2026 (Sat)

Trail running, Running

5K Half-Marathon 10K 1K +2

Luau 5K, 10K, & 13.1M at Pasco, WA (20)

Pasco, Washington, United States

May 16, 2026 (Sat)

Running

5K 10K Half-Marathon

Super Mom 5K/10K/Half Marathon - Portland (Washougal)

Washougal, Washington, United States

May 10, 2026 (Sun)

Running

5K 10K Half-Marathon +5

San Juan Island Half

Friday Harbor, Washington, United States

May 9, 2026 (Sat)

Running

Half-Marathon 0.6K

Luau 5K, 10K, & 13.1M at Olympia, WA (19)

Olympia, Washington, United States

May 9, 2026 (Sat)

Running

5K 10K Half-Marathon

Luau 5K, 10K, & 13.1M at Everett, WA (19)

Everett, Washington, United States

May 9, 2026 (Sat)

Running

5K 10K Half-Marathon

Snohomish Women's Run

Everett, Washington, United States

May 9, 2026 (Sat)

Running

Half-Marathon 10K 5K +2

Kirkland Half Marathon & 5K

Kirkland, Washington, United States

May 3, 2026 (Sun)

Running

5K Half-Marathon 1K

Luau 5K, 10K, & 13.1M at Everett, WA (18)

Everett, Washington, United States

May 2, 2026 (Sat)

Running

5K 10K Half-Marathon

Never Say Never Half Marathon & 10K

Tieton, Washington, United States

May 2, 2026 (Sat)

Running, Walking

Half-Marathon 10K

Tacoma City Marathon / Half / Ghost / 10K / 5K / 1K

Tacoma, Washington, United States

May 2, 2026 (Sat) – May 3, 2026

Running

10K 5K Marathon Half-Marathon +4