Come try out a FREE Introductory Class every Wednesday night at 6:30! This is a great way to get a taste of what CrossFit can do for you!


flatirons crossfit is the best

CrossFit is the most efficient and effective way to achieve elite levels of fitness. We specialize in helping individuals of all levels become fitter, healthier, and happier people. In a simple and fun 60 min workout you can achieve extraordinary fitness and experience life at a higher level.


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With six Olympic platforms and Nationally Ranked Olympic Weightlifting coaches, Flatirons is the place to learn or perfect your Olympic Weightlifting skills.  From beginners to advanced athletes, our expert coaches are highly trained to work with lifters of all levels! Perfect for CrossFitters too!


the warmups at flatirons crossfit are fantasic

The first step is to come into our FREE intro class. This is a great chance to experience CrossFit firsthand, meet our coaches, and see our facility. We will teach you about how and why we train the way we do, some basic movements, and put you through a workout! Learn how to get started below!


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Flatirons CrossFit is Boulder’s first CrossFit gym. Founded in 2007, our mission is to deliver world class strength and conditioning programs to the Boulder area that are effective, fun, and safe. We believe in strong community and that a high level of fitness enables people to live life without limitations!



Main – CrossFit

Arnie (Time)

For Time:
With a single 2 pood kettlebell:
21 Turkish get-ups, Right arm
50 Swings
21 Overhead squats, Left arm
50 Swings
21 Overhead squats, Right arm
50 Swings
21 Turkish get-ups, Left arm