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Triathlon Calendar near Bainbridge Island 2025-2026

Explore the top triathlons near Bainbridge Island for 2025-2026! We've gathered 67 exciting races in the area. Check out our detailed list below to find your next local race.

April 2025
Apr
19
Saturday

Squak Mountain Trail Run

Trail Run 12 km 13 mi 50 km
Apr
19-20
Sa - Su

Last Fool Standing

Backyard Ultra 5 km
Apr
19
Saturday

Running in the RAINN 5k

5 km
Apr
19
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
May 2025
May
3-4
Sa - Su

Tacoma City Marathon

5 km 10 km 13 mi 26 mi
May
3-4
Sa - Su

Seattle North Spartan Event Weekend

Obstacle Run 5 km 10 km
May
3
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
May
4
Sunday

Kirkland Half Marathon

5 km 13 mi
May
4
Sunday

May the Course be with You 5k

5 km
May
9-10
Fr - Sa

Tiger Claw

Trail Run 2 mi 50 km 50 mi
May
10
Saturday

Inspiring Hope Run 10k

5 km 10 km
May
10
Saturday

Trillium Trail Run

Trail Run 5 km 10 km
May
10
Saturday

Snohomish Women's Run

5 km 10 km 13 mi
May
10
Saturday

Cougar Mountain Trail Run

Trail Run 5 mi 10 mi
May
11
Sunday

Cedar River Triathlon

Triathlon
May
17
Saturday

Dirty Turtle 25/50k

Trail Run 25 km 50 km
May
17
Saturday

Run or Wine 5K Series

5 km 10 km
May
17
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
May
17
Saturday

Viking Fest Road Race

5 mi
May
24-25
Sa - Su

Pigtails Challenge

Trail Run 50 km 100 km ... 150 mi 200 mi
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