Running races in or near Black Diamond, WA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Black Diamond, WA area. Races listed here include both walking and running events of various distances — from 1-milers, to 5Ks, to marathons, and everything else in between.
Running-5K - Individual Age group/open
Organization: Lake Wilderness Triathlon
Date of Race: 06-06-2026
Description: Welcome to the 10th annual Lake Wilderness Run!! We're so excited ...
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Running-10K - Individual Age group/open
Organization: Lake Wilderness Triathlon
Date of Race: 06-06-2026
Description: Welcome to the 10th annual Lake Wilderness Run!! We're so excited ...
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Running-Half marathon - Individual Age group/open
Organization: Lake Wilderness Triathlon
Date of Race: 06-06-2026
Description: Welcome to the 10th annual Lake Wilderness Run!! We're so excited ...
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Bubble Run - Value Registrations- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶5̶4̶.̶9̶5̶
Organization: Viral Run
Date of Race: 08-01-2026
Description: If you’ve done a traditional 5K, you know they ...
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Foam Glow - VIP Registration R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶9̶9̶.̶9̶5̶
Organization: Viral Run
Date of Race: 08-01-2026
Description: Foam Glow 5K™ is a fun filled experience exposing runners to ...
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Lake Sammamish Classic - Mile Marker Sponsor
Organization: Sammamish Running
Date of Race: 12-27-2025
Description: Last Half of 2025 will be a Classic - Out and ...
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Lake Sammamish Classic - Half 13.1
Organization: Sammamish Running
Date of Race: 12-27-2025
Description: Last Half of 2025 will be a Classic - Out and ...
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Lake Sammamish Classic - 10k
Organization: Sammamish Running
Date of Race: 12-27-2025
Description: Last Half of 2025 will be a Classic - Out and ...
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Bubble Run - Exclusive VIP Registration- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ ...
Organization: Viral Run
Date of Race: 08-01-2026
Description: If you’ve done a traditional 5K, you know they ...
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Lake Sammamish Classic - 5k
Organization: Sammamish Running
Date of Race: 12-27-2025
Description: Last Half of 2025 will be a Classic - Out and ...
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Running-3.7 mi - Race to the Top of ...
Organization: Sammamish Running
Date of Race: 01-03-2026
Description: Be the first up to the top of Mount Si in ...
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Foam Glow - Value Registrations- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶5̶4̶.̶9̶5̶
Organization: Viral Run
Date of Race: 08-01-2026
Description: Foam Glow 5K™ is a fun filled experience exposing runners to ...
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Bubble Run | Seattle 2026
Organization: Viral Run
Date of Race: 08-01-2026
Description: If you’ve done a traditional 5K, you know they ...
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Lake Wilderness Run
Organization: Lake Wilderness Triathlon
Date of Race: 06-06-2026
Description: Welcome to the 10th annual Lake Wilderness Run!! We're so excited ...
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Lake Sammamish Classic 13.1
Organization: Sammamish Running
Date of Race: 12-27-2025
Description: Last Half of 2025 will be a Classic - Out and ...
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Race to the Top of Mount Si - ...
Organization: Sammamish Running
Date of Race: 01-03-2026
Description: Be the first up to the top of Mount Si in ...
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Foam Glow | Seattle 2026
Organization: Viral Run
Date of Race: 08-01-2026
Description: Foam Glow 5K™ is a fun filled experience exposing runners to ...
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Onesie Run 5K
Organization: Pierce County Parks
Date of Race: 02-21-2026
Description: DescriptionSlip into your coziest onesie and hit the course for a ...
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2026 Camp Gilead River Run 5K
Organization: Camp Gilead
Date of Race: 05-25-2026
Description: The River Run 5K is an event to raise money for ...
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Price
Organization: Camp Gilead
Date of Race: 05-25-2026
Description: The River Run 5K is an event to raise money for ...
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Competitive Track and Field
Organization: BASIS Independent Bellevue
Date of Race: 03-16-2026
Description: Advisor: Coach Bryant Email: kyera.bryant@basisindependent.com Calling all BLV athletes! Join ...
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Sponsor - Pre-Race Pasta Feed - Live Band ...
Organization: Sammamish Running
Date of Race: 08-30-2026
Description: Join us for the 2026 Beaver Lake Triathlon 1/4-mile swim in ...
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Sponsor - Pre-Race Safety Briefing - Headliner
Organization: Sammamish Running
Date of Race: 08-30-2026
Description: Join us for the 2026 Beaver Lake Triathlon 1/4-mile swim in ...
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Triathlon-Super Sprint - Full Triathlon 1/4S, 14B, 4R
Organization: Sammamish Running
Date of Race: 05-10-2026
Description: Join us for one of the top early premiere triathlons in ...
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Triathlon-Super Sprint - Splash n Dash (kids 7-15)
Organization: Sammamish Running
Date of Race: 05-10-2026
Description: Join us for one of the top early premiere triathlons in ...
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Complete list of running events in and near Black Diamond, WA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Black Diamond
About Black Diamond
Black Diamond (WA) is a city in King County with an estimated population of 4,151.[4]
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Did you know?
In 2015, the 5K maintained the #1 position of all race distances with 7.6 million finishers (U.S.).
