Running races in or near Pierce, CO
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Pierce, CO 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: Gnar Runners 2015
Date of Race: 12-31-2025
Description: Run out the old year, and welcome the new! Now in ...
View Race Details View on Map
Running-25mi - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 05-10-2025
Description: Welcome to the Quad Rock 25 50 mile trail race, ...
View Race Details View on Map
Running-Half marathon - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 09-06-2025
Description: The Black Squirrel Trail Half Marathon takes place on the wonderful ...
View Race Details View on Map
Running-Trail-Marathon - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 10-18-2025
Description: Taking place on the trails between Horsetooth Mountain Park and the ...
View Race Details View on Map
Running-Half marathon - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 10-18-2025
Description: Taking place on the trails between Horsetooth Mountain Park and the ...
View Race Details View on Map
Running-50 Mile - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 05-10-2025
Description: Welcome to the Quad Rock 25 50 mile trail race, ...
View Race Details View on Map
Blue Sky Marathon & Half
Organization: Gnar Runners 2015
Date of Race: 10-18-2025
Description: Taking place on the trails between Horsetooth Mountain Park and the ...
View Race Details View on Map
Quad Rock 50/25mi
Organization: Gnar Runners 2015
Date of Race: 05-10-2025
Description: Welcome to the Quad Rock 25 50 mile trail race, ...
View Race Details View on Map
Resolution Run 5K
Organization: Gnar Runners 2015
Date of Race: 12-31-2025
Description: Run out the old year, and welcome the new! Now in ...
View Race Details View on Map
Colorado 24 Hour Run
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
View Race Details View on Map
24 Hour - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
View Race Details View on Map
12 Hour - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
View Race Details View on Map
6 Hour - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
View Race Details View on Map
Black Squirrel Half Marathon
Organization: Gnar Runners 2015
Date of Race: 09-06-2025
Description: The Black Squirrel Trail Half Marathon takes place on the wonderful ...
View Race Details View on Map
Day Off Discovery Camp: Park Discovery Day!
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 07-25-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
View Race Details View on Map
Day Off Discovery Camp: Park Discovery Day!
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 07-25-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
View Race Details View on Map
Day Off Discovery Camp: Park Discovery Day!
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 07-25-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
View Race Details View on Map
Day Off Discovery Camp: Park Discovery Day!
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-06-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
View Race Details View on Map
Day Off Discovery Camp: Park Discovery Day!
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-06-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
View Race Details View on Map
Day Off Discovery Camp: Park Discovery Day!
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-06-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
View Race Details View on Map
Complete list of running events in and near Pierce, CO: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Pierce
About Pierce
Pierce (CO) is a town in Weld County with an estimated population of 834.[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.
