Running Races in Frederick, CO

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

See below for a frequently-updated, comprehensive list of upcoming running events in the local Frederick, 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 / Walking Club

Organization: Westgate Community School

Date of Race: 04-16-2025

Description: Any fitness level welcome

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.

Half marathon - Individual Age group/open

Organization: Five Star NTP

Date of Race: 08-03-2025

Description: Have you been dreaming of running Boston? Need to shave a ...

Price

Organization: Colorado Track & Cross Country Camps

Date of Race: 07-07-2025

Description: Have you been dreaming of running Boston? Need to shave a ...

Bubble Run - Exclusive VIP Registration- Regular Price ...

Organization: Viral Run

Date of Race: 06-21-2025

Description: If you’ve done a traditional 5K, you know ...

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.

Bubble Run - Value Registrations- Regular Price $54.95

Organization: Viral Run

Date of Race: 06-21-2025

Description: If you’ve done a traditional 5K, you know ...

Marathon - Individual Age group/open

Organization: Five Star NTP

Date of Race: 08-03-2025

Description: Have you been dreaming of running Boston? Need to shave a ...

Colorado Cross Country Summer Camp

Organization: Colorado Track & Cross Country Camps

Date of Race: 07-07-2025

Description: Nestled 5,430 feet above sea level, Boulder, Colorado is renowned as ...

Muddy Dash - VIP Registration 💎

Organization: Viral Run

Date of Race: 05-10-2025

Description: Muddy Dash is not your average mud run! Get ready for ...

I'm Bound for Boston Marathon & Half Marathon ...

Organization: Five Star NTP

Date of Race: 08-03-2025

Description: Have you been dreaming of running Boston? Need to shave a ...

Muddy Dash | Denver

Organization: Viral Run

Date of Race: 05-10-2025

Description: Muddy Dash is not your average mud run! Get ready for ...

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.

Bubble Run | Denver

Organization: Viral Run

Date of Race: 06-21-2025

Description: If you’ve done a traditional 5K, you know ...

Muddy Dash - Value Registration

Organization: Viral Run

Date of Race: 05-10-2025

Description: Muddy Dash is not your average mud run! Get ready for ...

5k Race June

Organization: Fort Lupton Recreation Center

Date of Race: 06-14-2025

Description: DescriptionA certified 5k Race starts on South Harrison Avenue in front ...

EXPAND: Special Olympics Track and Field

Organization: BOULDER PARKS & RECREATION (w)

Date of Race: 04-02-2025

Description: Description(Ages 6–14) Whether you want to run, throw or jump, there's ...

EXPAND: Youth Track and Field

Organization: BOULDER PARKS & RECREATION (w)

Date of Race: 04-02-2025

Description: Description(Ages 6–14) Whether you want to run, throw or jump, there's ...