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.
Fall City Classic - Race Series (Fall City, ...
Organization: Sammamish Running
Date of Race: 03-21-2026
Description: Join us for the Fall City Classic! One of the fastest ...
View Race Details View on Map
Fall City Classic - 8k
Organization: Sammamish Running
Date of Race: 03-21-2026
Description: Join us for the Fall City Classic! One of the fastest ...
View Race Details View on Map
Fall City Classic - 13.1
Organization: Sammamish Running
Date of Race: 03-21-2026
Description: Join us for the Fall City Classic! One of the fastest ...
View Race Details View on Map
Fall City Classic
Organization: Sammamish Running
Date of Race: 03-21-2026
Description: Join us for the Fall City Classic! One of the fastest ...
View Race Details View on Map
Fall City Classic - 5k
Organization: Sammamish Running
Date of Race: 03-21-2026
Description: Join us for the Fall City Classic! One of the fastest ...
View Race Details View on Map
Fall City Classic - Sponsor Event
Organization: Sammamish Running
Date of Race: 03-21-2026
Description: Join us for the Fall City Classic! One of the fastest ...
View Race Details View on Map
Fall City Classic - Member - Sammamish Running ...
Organization: Sammamish Running
Date of Race: 03-21-2026
Description: Join us for the Fall City Classic! One of the fastest ...
View Race Details View on Map
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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
Cedar River Half 13.1, 10k, 5k - 10k
Organization: Sammamish Running
Date of Race: 04-25-2026
Description: Dust off those running shoes and get the year started off ...
View Race Details View on Map
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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
Cedar River Half 13.1, 10k, 5k - 5k
Organization: Sammamish Running
Date of Race: 04-25-2026
Description: Dust off those running shoes and get the year started off ...
View Race Details View on Map
Bubble Run | Seattle 2026
Organization: Viral Run
Date of Race: 08-01-2026
Description: If you’ve done a traditional 5K, you know they ...
View Race Details View on Map
Cedar River Half 13.1, 10k, 5k - Half ...
Organization: Sammamish Running
Date of Race: 04-25-2026
Description: Dust off those running shoes and get the year started off ...
View Race Details View on Map
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 ...
View Race Details View on Map
Cedar River Half 13.1, 10k, 5k
Organization: Sammamish Running
Date of Race: 04-25-2026
Description: Dust off those running shoes and get the year started off ...
View Race Details View on Map
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 ...
View Race Details View on Map
Donut Dash 5K
Organization: Pierce County Parks
Date of Race: 06-20-2026
Description: DescriptionWho doesn't LOVE donuts?! Enjoy a donut pit stop on the ...
View Race Details View on Map
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 ...
View Race Details View on Map
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 ...
View Race Details View on Map
Price
Organization: Camp Gilead
Date of Race: 05-25-2026
Description: DescriptionSlip into your coziest onesie and hit the course for a ...
View Race Details View on Map
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]
Races Local Newsletter
Subscribe to get the latest on racing delivered to your inbox, once per week.
Did you know?
In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
