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Marathon Calendar near Black Diamond 2025-2026

Monthly updates for Black Diamond

Get new running races (and updates) in your inbox every month.

Explore the top marathons near Black Diamond for 2025-2026! We've gathered 18 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
18
Su

Birthday Run - Seattle

7 mi 13 mi 26 mi
February 2026
Feb
8
Su

West Seattle Beach Run - Fat Ass

Trail Run Half Marathon Marathon 50 km
March 2026
Mar
28
Sa

Spring Run for Fun @ Bridle Trails

Trail Run 5 km 10 km Half Marathon Marathon
Mar
29
Su

Redmond Marathon

Trail Run 13 mi 26 mi
May 2026
May
2-3
Sa - Su

Tacoma City Marathon

5 km 10 km Half Marathon Marathon
May
30
Sa

Mud Mountain Dam Marathon

5 km Half Marathon Marathon
June 2026
Jun
7
Su

Light at the End of the Tunnel Marathon

Trail Run Half Marathon Marathon
Jun
13
Sa

Super Marathon & Half Marathon

Trail Run 13 mi 26 mi
July 2026
Jul
25-26
Sa - Su

Jack & Jill Downhill Marathon

Half Marathon 26 mi
August 2026
Aug
8
Sa

Cougar Mountain Trail Run Series

Trail Run 5 km 15 mi 26 mi
Aug
9
Su

Tunnel Vision Marathon

Trail Run Half Marathon Marathon
September 2026
Sep
12
Sa

Cascade Express Marathon

Trail Run 13 mi Marathon
Sep
12
Sa

Beat the Blerch

Trail Run 5 km 10 km Half Marathon Marathon
Sep
13
Su

Tunnel Light Marathon

Trail Run Half Marathon Marathon
November 2026
Nov
7
Sa

Grand Ridge Trail Run

Trail Run 5 mi Half Marathon Marathon 50 km
Nov
28
Sa

Seattle Ghost Marathon

Half Marathon Marathon 50 km
Nov
29
Su

Seattle Marathon

Half Marathon Marathon
December 2026
Dec
12
Sa

Pigtails Run

Trail Run Half Marathon Marathon 50 km