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Half Marathon Calendar near Seattle 2025-2026

Explore the top half marathons near Seattle for 2025-2026! We've gathered 78 exciting races in the area. Check out our detailed list below to find your next local race.

March 2026
Mar
29
Sunday

Mill Town Half Marathon

3 mi 6 mi 13 mi
Mar
29
Sunday

Mill Town Marathon

5 km 10 km Half Marathon
April 2026
Apr
4
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Apr
4
Saturday

US Road Running - Everett

5 km 10 km 13 mi 26 mi
Apr
11
Saturday

US Road Running - Everett

5 km 10 km Half Marathon
Apr
18
Saturday

Squak Mountain Trail Run

Trail Run 12 km Half Marathon 50 km
Apr
18
Saturday

US Road Running - Everett

5 km 10 km 13 mi 26 mi
Apr
25
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Apr
26
Sunday

The Beats Half Marathon

5 km 10 km Half Marathon
May 2026
May
2-3
Sa - Su

Tacoma City Marathon

5 km 10 km Half Marathon Marathon
May
2
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
May
2
Saturday

US Road Running - Everett

5 km 10 km Half Marathon
May
3
Sunday

Kirkland Half Marathon

5 km Half Marathon
May
9
Saturday

US Road Running - Everett

5 km 10 km Half Marathon
May
10
Sunday

Snohomish Women's Run

5 km 10 km Half Marathon
May
16
Saturday

Soaring Eagle Trail Run

Trail Run 5 km 10 km Half Marathon
May
16
Saturday

US Road Running - Everett

3 mi 6 mi 13 mi
May
31
Sunday

Evergreen Half Marathon

5 mi Half Marathon
June 2026
Jun
6
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Jun
6
Saturday

US Road Running - Everett

5 km 10 km Half Marathon
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