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Running calendar near West Seattle 2025-2026

Explore the top running races near West Seattle for 2025-2026! We've gathered 84 exciting races in the area. Check out our detailed list below to find your next local race.

August 2025
Aug
23
Saturday

Run a Muk 5k/10k

5 km 10 km
Aug
24
Sunday

Beaver Lake Triathon

Triathlon
Aug
24
Sunday

Iron Horse Half Marathon

13 mi
Aug
30
Saturday

Summer Spirit Run

5 km 10 km 15 km
Aug
30
Saturday

Bonney Lake Triathlon

Triathlon
Aug
31
Sunday

Rattlesnake Lake Triathlon

Triathlon
September 2025
Sep
1
Monday

Redmond Harvest Half Marathon

13 mi
Sep
13-14
Sa - Su

Seattle Spartan Trifecta Weekend

Obstacle Run 5 km 10 km 21 km
Sep
20-21
Sa - Su

Orca Half Marathon

8 mi 13 mi
Sep
21
Sunday

Quilcene Oyster Races

5 km 10 km 13 mi
October 2025
Oct
5
Sunday

Poulsbo Half Marathon

10 km 13 mi
Oct
11-12
Sa - Su

North Bend Trail Fest

Trail Run 5 km 10 km 30 km
Oct
11
Saturday

Defiance 50k

15 km 30 km 50 km
Oct
12
Sunday

North Bend Skyline 30K

Trail Run 30 km
Oct
12
Sunday

Snohomish River Run

5 km 10 km 13 mi 26 mi
Oct
18
Saturday

Where's Bigfoot 5K

5 km
Oct
18-21
Sa - Tu

Lake Washington Half Marathon

13 mi
Oct
25
Saturday

Wicked Fast 10K

5 km 10 km
Oct
25
Saturday

West Seattle Monster Dash

Trail Run 5 km
Oct
25
Saturday

Carkeek 12 Hour

Backyard Ultra 6 hr 12 hr
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