Running Races in Broomfield, CO

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

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

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 ...

Trail Race Training Series- Aug 18-Sept 10

Organization: Evergreen Park & Recreation District

Date of Race: 08-18-2025

Description: DescriptionJoin Coach Jay Steinberg for weekly training sessions to prepare for ...

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 ...

Bergen Peak Half Marathon Trail Race- Sept 13

Organization: Evergreen Park & Recreation District

Date of Race: 09-13-2025

Description: DescriptionBergen Peak runners will experience the rolling hills of Elk Meadow ...

Muddy Dash - Exclusive VIP Registration - ...

Organization: Viral Run

Date of Race: 09-13-2025

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 - VALUE REGISTRATION - R̶e̶g̶u̶l̶a̶r̶ ...

Organization: Viral Run

Date of Race: 09-13-2025

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

Muddy Dash | Denver

Organization: Viral Run

Date of Race: 09-13-2025

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

Coach Mike's Running Club with Mike Holloway - ...

Organization: Mack Boulder

Date of Race: 08-25-2025

Description: Come join me for some after school movement! This K-5 running ...

Staunton State Park 10 Mile Trail Race- Aug ...

Organization: Evergreen Park & Recreation District

Date of Race: 08-02-2025

Description: DescriptionJoin us at Staunton State Park for a beautiful 10 mile ...

Bergen Peak 5k Trail Race- Sept 13

Organization: Evergreen Park & Recreation District

Date of Race: 09-13-2025

Description: DescriptionThis 5K race leads runners throughout the rolling hills of Elk ...

Cross Country Middle School Team

Organization: Mack Boulder

Date of Race: 08-26-2025

Description: Join our Mackintosh Academy Cross Country Team! We will practice twice ...

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Organization: Mighty Movement

Date of Race: 08-04-2025

Description: Join our Mackintosh Academy Cross Country Team! We will practice twice ...

<< SELECT SESSION

Organization: Mighty Movement

Date of Race: 08-04-2025

Description: Join our Mackintosh Academy Cross Country Team! We will practice twice ...

<< SELECT SESSION

Organization: Mighty Movement

Date of Race: 08-11-2025

Description: Join our Mackintosh Academy Cross Country Team! We will practice twice ...

<< SELECT SESSION

Organization: Mighty Movement

Date of Race: 08-04-2025

Description: Join our Mackintosh Academy Cross Country Team! We will practice twice ...

<< SELECT SESSION

Organization: Mighty Movement

Date of Race: 08-11-2025

Description: Join our Mackintosh Academy Cross Country Team! We will practice twice ...

Trail Race Training Series- Aug 18-Sept 10

Organization: Evergreen Park & Recreation District

Date of Race: 08-18-2025

Description: DescriptionJoin Coach Jay Steinberg for weekly training sessions to prepare for ...

Bard's Backstage Pass: A Deeper Dive into CSF's ...

Organization: Colorado Shakespeare Festival

Date of Race: 08-01-2025

Description: This 2-day, immersive weekend experience takes you behind-the-scenes of the Colorado ...

Trail Race Training Series- Aug 18-Sept 10

Organization: Evergreen Park & Recreation District

Date of Race: 08-18-2025

Description: DescriptionJoin Coach Jay Steinberg for weekly training sessions to prepare for ...