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Triathlon Calendar near Mukilteo 2025-2026

Explore the top triathlons near Mukilteo for 2025-2026! We've gathered 95 exciting races in the area. Check out our detailed list below to find your next local race.

March 2026
Mar
14
Saturday

Kirkland Shamrock Run

5 km 10 km
Mar
14
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Mar
29
Sunday

Mill Town Half Marathon

3 mi 6 mi 13 mi
Mar
29
Sunday

Mill Town Marathon

5 km 10 km 21 km
April 2026
Apr
4
Saturday

The Best Races - Seattle

5 km 10 km 13 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 21 km
May 2026
May
2-3
Sa - Su

Seattle North Spartan Event Weekend

Obstacle Run 5 km 10 km
May
9
Saturday

Inspiring Hope Run 10k

5 km 10 km
May
10
Sunday

Snohomish Women's Run

5 km 10 km 21 km
May
16
Saturday

Soaring Eagle Trail Run

Trail Run 5 km 10 km 20 km
May
31
Sunday

Evergreen Half Marathon

5 mi 21 km
July 2026
Jul
18
Saturday

Lookin For A Cure Seattle

5 km
August 2026
Aug
15
Saturday

One Step Closer

Backyard Ultra 3 hr 6 hr 12 hr 18 hr
Aug
16
Sunday

Sundae Runday

2 mi 5 km 10 km
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