Marathons in Seattle, Washington 2026

2 marathons and running events in Seattle

🏃 Seattle
Registration Open Jun 18, 2026
United States

Rock 'n' Roll Seattle Marathon & Half Marathon

Seattle, Washington Full Marathon, Half Marathon, 5K
BQ Certified 14,000 runners
$89.00 entry View Details →
🏃 Seattle
Registration Open Nov 29, 2026
United States

UW Medicine Seattle Marathon & Half Marathon

Seattle, Washington Full Marathon, Half Marathon, Kids' Run, Virtual
BQ Certified 10,000 runners
$105.00 entry View Details →