Kirkland Half Marathon & 5K

The Kirkland Half Marathon (formerly the Mother's Day Half) is a scenic mixed-terrain race through the waterfront city of Kirkland on Lake Washington's eastern shore, just 20 minutes from downtown Seattle. The course combines paved roads and unpaved trail sections, offering variety and beautiful lake and neighborhood views. With a difficulty rating of 3.5/5 from runners, expect some rolling hills that add character without crushing your pace.

Produced by Orca Running — one of the Pacific Northwest's most respected race organizations — the Kirkland Half consistently earns high marks for smooth logistics, quality swag, and a fun post-race atmosphere. The early May timing brings spring weather with highs in the mid-60s. The field of 400-600 runners creates an intimate community feel while still offering chip timing, professional photos, and pacers.

Your entry includes a soft race tee, finisher's medal, free professional photo downloads, post-race snacks, and a charitable donation. Orca Running also offers bundle discounts if you're looking to race multiple events throughout the year. This is a strong choice for runners who want a well-organized, moderately challenging half with Pacific Northwest scenery.