Running races in or near Windsor, CO
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Windsor, 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 - 15 And Under Youth
Organization: Turner Middle School
Date of Race: 05-03-2025
Description: All participants are welcome. Come challenge yourself to be the best.
View Race Details View on Map
Running-5K - 16 and Older Adult Registration
Organization: Turner Middle School
Date of Race: 05-03-2025
Description: All participants are welcome. Come challenge yourself to be the best.
View Race Details View on Map
21st Annual Bob Turner Classic 5k Run/Walk
Organization: Turner Middle School
Date of Race: 05-03-2025
Description: All participants are welcome. Come challenge yourself to be the best.
View Race Details View on Map
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-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: 09-06-2025
Description: The Black Squirrel Trail Half Marathon takes place on the wonderful ...
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
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
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
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
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
T-Ball M/W 6:00 pm
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-02-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
T-Ball M/W 8:00 am
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-02-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
T-Ball M/W 8:00 am
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-02-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
T-Ball T/T 5:00 pm
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-03-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
T-Ball M/W 6:00 pm
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-02-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
T-Ball T/T 5:00 pm
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-03-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
T-Ball M/W 8:00 am
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-02-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
T-Ball T/T 5:00 pm
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 06-03-2025
Description: DescriptionStep up to the plate and join the fun! T-ball is ...
View Race Details View on Map
Complete list of running events in and near Windsor, CO: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Windsor
About Windsor
Windsor (CO) is a town in Weld County with an estimated population of 18,644.[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.
