The Murph

The workout: A 1-mile run, followed by 100 pullups, 200 pushups, and 300 unweighted squats, followed by another 1-mile run. … In a nod to the workout’s military roots—it’s named for Lt. Michael P. Murphy, a Navy SEAL killed in action in 2005—CrossFit gyms around the U.S. host a Murph every Memorial Day.

The Spartan Race

Spartan is more than a race; it’s a way of life. We believe that you can’t have a strong body without a strong mind, that you can’t grow without pressure, that obstacles help shift our frame of reference and make us more resilient.

Go Ruck

Based on Special Forces training, your class is led from start to finish by a Special Forces Cadre. His job is to test your limits, push you beyond them, and build your class into a team. There are no cash prizes at the finish. All you earn is a 2x3 inch patch and the respect of everyone to your left and right.


Eric is one of the most intuitive and thoughtful personal trainers I’ve ever known. I would recommend you try Stone Gym before you do any gym membership.

Dr Scott Miller

I lost 85 pounds training at Stone Gym. Eric is a real pro, you can tell he’s been doing this for 30 years!

Jim Stack

I’m 62 years old and was thinking I was in the season of slowing down. I started training at Stone Gym a couple of months ago and I’ve already lost 13 lbs! Eric is exceptional in his knowledge and teaching skills.

Pastor Gary Skinner

A+ I’m seeing really fast results for just a few months of training at Stone Gym.

Josh Melendez

Eric is an expert in his field, along with a fun flair of theatrics in the gym, a love for his family, and a real zest for living life to the fullest. He is a good friend and an excellent teacher. Colorado is better because of Stone Gym!

Jeremy Bedell

Eric is one of the best trainers I have ever had in my life. He help me go from 280lbs, 36% body fat and out of shape to 235lb, 15% body fat and in the best shape of my life. He will add years to your life.

Jason Paschall

I started training with Eric almost 10 years ago. Eric improved my fitness to a level that I never would have believed. Eric teaches good form and technique. He is a terrific coach. I would recommend him to anyone wanting to get fit!

Dr Jeremy Carrico

’ve had such a great experience with Eric as my coach. I learned so much from him, and his passion for fitness over decades, his heart to change people’s lives through health. I became a coach myself after he inspired me and my own passion of fitness. You cannot find a more invested coach to help you reach for your best, and also show compassion through your personal struggles.

Mindy Streicher

Eric helped me change me life completely for the better. Always encouraged and and helped motivate me to lose 60 pounds. Forever a great mentor and friend to me

Blake Talcott

Eric is the man! He’s an incredible coach, athlete, and friend. His wealth of knowledge and experience helps me continually improve. He’s the kind of guy that takes the time to understand exactly what you need as an individual to be the best you can be. It’s obvious that he cares for each of his athletes. Unwaveringly recommended!!

Dr Chris Trockel