The Colfax Marathon is a popular annual event held in Denver, Colorado, offering a variety of race distances, including a marathon, half marathon, 5K, and relay race. The event is celebrated for its well-organized race courses, which take participants through Denver's vibrant neighborhoods, beautiful city parks, and iconic landmarks. The Colfax Marathon has grown to become a key event on the city's calendar, drawing thousands of runners from around the world to enjoy the race's festive atmosphere and the stunning views of the Rocky Mountains. Along with the race itself, the event includes a weekend of activities for runners and their families, making it a celebration of both fitness and community.
Race Date:
18 May, 2025
The Colfax 10 Mile on May 18, 2025, offers a fast and fun race through Denver, perfect for those wanting to experience the marathon weekend without committing to the full distance. This race showcases some of Denver’s best urban and natural landmarks in a compact format.
Weather based on historical averages.
The Colfax 10 Mile on May 18, 2025, offers a fast and fun race through Denver, perfect for those wanting to experience the marathon weekend without committing to the full distance. This race showcases some of Denver’s best urban and natural landmarks in a compact format.
The Denver Colfax 10 Mile is 16km long.
The Denver Colfax 10 Mile takes place in Lakewood, Colorado, USA.
Runna classifies the Denver Colfax 10 Mile elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Colfax 10 Mile on May 18, 2025, offers a fast and fun race through Denver, perfect for those wanting to experience the marathon weekend without committing to the full distance. This race showcases some of Denver’s best urban and natural landmarks in a compact format.
The Denver Colfax 10 Mile is 16km long.
The Denver Colfax 10 Mile takes place in Lakewood, Colorado, USA.
Runna classifies the Denver Colfax 10 Mile elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Major City
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Colfax Marathon or Denver Colfax Marathon. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Colfax Marathon website.