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Half Marathon calendar near Issaquah 2025-2026

Explore the top half marathons near Issaquah for 2025-2026! We've gathered 41 exciting races in the area. Check out our detailed list below to find your next local race.

August 2025
Aug
23
Saturday

Paradise Valley Trail Run

Trail Run 5 km 10 km 13 mi
Aug
24
Sunday

Iron Horse Half Marathon

13 mi
Aug
30
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
September 2025
Sep
1
Monday

Redmond Harvest Half Marathon

13 mi
Sep
6
Saturday

Cascade Express Marathon

Trail Run 13 mi 26 mi
Sep
6
Saturday

Beat the Blerch

Trail Run 5 km 10 km 13 mi 26 mi
Sep
13
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Sep
20-21
Sa - Su

Orca Half Marathon

8 mi 13 mi 42 km
Sep
20
Saturday

Mud Mountain Dam Marathon

5 km 13 mi 26 mi
Sep
27
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Sep
27
Saturday

Puyallup Valley Half Marathon

5 km 10 km 13 mi
October 2025
Oct
12
Sunday

Snohomish River Run

5 km 10 km 13 mi 26 mi
Oct
18-21
Sa - Tu

Lake Washington Half Marathon

13 mi
Oct
18
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
November 2025
Nov
8
Saturday

Grand Ridge Trail Run

Trail Run 5 mi 13 mi 26 mi 50 km
Nov
9
Sunday

Run the Bay

5 km 10 km 13 mi
Nov
29
Saturday

Seattle Ghost Marathon

13 mi 26 mi 50 km
Nov
30
Sunday

Seattle Marathon

13 mi 26 mi
December 2025
Dec
13
Saturday

Pigtails Run

Trail Run 13 mi 26 mi 50 km
Dec
13
Saturday

Santa Runs Tacoma

5 km 10 km 13 mi
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