Our Bios

Gary Berg
Owner/Head Coach
Boulder CrossFit

From the time I can remember, I have always enjoyed sports and physical activities. I played on my High School and College Basketball teams and later went on to coach High School Basketball. While in college, I studied anatomy and nutrition and I knew early on that I wanted to teach or coach in something related to health and fitness. So in l996 while working as a regional manager for a large Reprographics company, I got my ACE certification in Personal Training and worked part time at a health club.

When I moved to Boulder in 2008, I was getting bored from doing the same routine in the gym and was seeking out something new and different. Luckily enough, one of the first people I met here in Boulder told me I had to check out this thing called CrossFit. Two weeks after trying my first class, I was hooked! The constantly varied, high intensity workouts drew me in, but the sense of community and camaraderie is second to none.

With a strong passion for teaching and coaching CrossFit methodologies, I opened Boulder CrossFit in 2012. I am very proud to be a part of a growing CrossFit community here in beautiful Boulder, Colorado. Helping coach and teach people of all ages and abilities to achieve their personal fitness goals is incredibly rewarding to me. I love being a coach and I’m especially proud of all the athletes who work out at Boulder CrossFit. “Work Hard, Have Fun, Make Friends”


  • CrossFit Level 1 Trainer
  • CrossFit Kids Certification
  • CrossFit Endurance Certification
  • CrossFit Kettlebell Trainer
  • CrossFit Olympic Weight Lifting Trainer


Jennifer Cook

I have always been a competitive athlete throughout my life. I was a gymnast, a collegiate diver, a triathlete and a distance runner.  I am always looking for new ways to challenge myself. I’m a busy mom of four fabulous children ranging in age from 1 1/2 to 13.  CrossFit helps me keep up with the physical (and emotional) demands of being a Mom.

What I love about CrossFit is that it is a sport that is continuously evolving, challenging, and fun.  It has helped me reach a high level of fitness in a short amount of time, challenging me both mentally and physically.

I became Level 1 certified to bring the same love and passion to others who are looking to get fit, while having fun.

Certifications: Registered Yoga Teacher, Aerial Yoga Instructor, CrossFit Level 1, CrossFit Gymnastics.

Bethany Strothman


Robert Beadles


Jon Harbour


Karen Harbour