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Races in Cosmopolis, WA

Running races in or near Cosmopolis, WA

Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more

See below for a frequently-updated, comprehensive list of upcoming running events in the local Cosmopolis, 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.

Road Runner Sports

Running-Half 13.1 - Individual Age group/open

Organization: Sammamish Running

Date of Race: 05-18-2025

Description: Join us for the inaugural running of the Sharky's Ocean Shores ...

Sharky's Ocean Shores Half 13.1

Organization: Sammamish Running

Date of Race: 05-18-2025

Description: Join us for the inaugural running of the Sharky's Ocean Shores ...

Triathlon-Super Sprint - Individual Age group/open

Organization: Sammamish Running

Date of Race: 07-13-2025

Description: Join us for the Sharky's Ocean Shores Triathlon - 1/4-mile swim ...

Triathlon-Sprint - Individual Age group/open

Organization: Sammamish Running

Date of Race: 07-13-2025

Description: Join us for the Sharky's Ocean Shores Triathlon - 1/4-mile swim ...

Duathlon - Bike Run - Individual Age group/open

Organization: Sammamish Running

Date of Race: 07-13-2025

Description: Join us for the Sharky's Ocean Shores Triathlon - 1/4-mile swim ...

Triathlon-Sprint - Group-registration team Age group/open

Organization: Sammamish Running

Date of Race: 07-13-2025

Description: Join us for the Sharky's Ocean Shores Triathlon - 1/4-mile swim ...

Duathlon - Bike Run - Individual Age group/open

Organization: Sammamish Running

Date of Race: 07-13-2025

Description: Join us for the Sharky's Ocean Shores Triathlon - 1/4-mile swim ...

Sharky's Ocean Shores Triathlon

Organization: Sammamish Running

Date of Race: 07-13-2025

Description: Join us for the Sharky's Ocean Shores Triathlon - 1/4-mile swim ...

Triathlon-Super Sprint - Group-registration team Age group/open

Organization: Sammamish Running

Date of Race: 07-13-2025

Description: Join us for the Sharky's Ocean Shores Triathlon - 1/4-mile swim ...

Saucony

Complete list of running events in and near Cosmopolis, WA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.


More information about Cosmopolis

About Cosmopolis

Cosmopolis (WA) is a city in Grays Harbor County with an estimated population of 1,649.[4]

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Did you know?

The number of U.S. marathon finishers declined from 2014 to 2015 approximately 8 percent.

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