Half-Marathon races near Seattle, Washington — 2026 running calendar

Run for Chocolate 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Jul 4, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

July 4th Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Jul 4, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Sloth Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Jun 20, 2026 (Sat) – Aug 29, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Run Juneteenth Day 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Jun 20, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Made in the Usa 5K/10K/15K/Half - Seattle

Seattle, Washington, United States

Jun 13, 2026 (Sat)

Running

5K 10K 15K Half-Marathon +12

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

Seattle, Washington, United States

Jun 6, 2026 (Sat) – Dec 12, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

SuperHeroes Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

Jun 6, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Memorial Day Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

May 23, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Run for Mental Health 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

May 23, 2026 (Sat) – Nov 14, 2026

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +14

Cinco De Mayo Run 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

May 2, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

Sunrise Marathon 5K/10K/13.1 SEATTLE

Seattle, Washington, United States

May 2, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2