STAC FITNESS is currently taking on New Clients! This includes training at our Training Facility, In-Home Training as well as remotely.

Incredibly knowledgeable, attentive and directed I cannot recommend enough. Richard/team will ensure your goals are met.

Richard customizes each workout to fit your physical ability in the moment. He packs a lot into a short workout ! My physical strength and muscle tone have improved since I began working with him.

I like working out with Richard because I have never been able to push myself physically like he can. Weather it’s boxing, weights, push ups, and other exercises his knowledge of correct form along with his encouragement to challenge myself has allowed me to stay fit! Thanks Richard!!

Great one on one training!! Good intense half hour workout..if you want to change the way you think and feel about excercise and nutrition, Coach Rich is where to begin your lifestyle remodel!! ..Amy K

Richard Ruiz tailors a program that fits your personal training needs and goals, including diet. I have been overweight for most of my life, and I needed someone who understands my body type with the patience to work with me as I have bad habits, especially during COVID. Richard has been my savior as I gained confidence that I can be healthy if I follow his process. Richard has the patience and understanding to know that it's a journey and he assures you that he will be with you every step of the way in your fitness journey. I highly recommend Richard Ruiz and STAC FITNESS!!!

I worked with Richard for years learning the fundamentals of boxing, in addition to strength/conditioning while rehabilitating from major knee surgery. Excellent trainer with wide variety of tools to meet client goals. Richard is the real deal in personal training. Tom Cabibi Denver, CO

As a chiropractor for almost 20 years, I often need to send my patients to trainers for rehab and medical exercise. I consider Richard to be among the most elite and knowledgeable professionals I have ever had the pleasure to work with. I trust him implicitly with most any patient I would send his way.

Richard is an extremely good personal trainer who knows how to tailor his programs for his clients to get the results they need. I have personally been struggling with my weight for years (especially during COVID) and Rich has given me the confidence that I can turn things around by giving me challenging workouts and also guidance of what and what not to eat. Rich treats his clients as partners on a quest to meet their goals. I recommend Rich highly for your fitness needs!

Richard was amazing, transformed my approach. I stoped when I moved locations but Richard gave me a foundation that has enabled a high level of fitness today!

Richard and Christine are dedicated to clients' success and make a true difference not only physically, but emotionally as well. Highly recommend them as a team!

I been a client at STAC fitness for 7 years and have known Richard for many more. Richard has always been a positive influence for me. He took the time to really understand what my fitness goals are and created a plan on how we were going to accomplish it. Together we created a nutrition plan that I could actually achieve and a workout regimen that wasn't intimidating. He always made me feel comfortable when I didn't know anything about fitness. His knowledge is incredible. I have had many friends and family members work out with Richard and I wouldn't recommend them to anywhere else, but STAC fitness. Not only are they inspiring but they are also very reasonable and actually care about you and your goals. True compassion, knowledge and professionalism is hard to come by. I really appreciate everything he has done for me, and my family. Thanks Richard and STAC fitness for all you do!

I was invited to join in on a training session by a friend who has been working out with Richard for the past 12 years, when my 4th child was just 7 weeks old. After surviving my first workout, I was hooked. Richard is a motivating trainer that has pushed me beyond what I would have thought I was capable of and definitely further than I would have ever pushed myself. I'm so excited about the amazing results I have obtained so far, they definitely keep me coming back for more. Richard is incredibly flexible with his schedule and the safe, effective and challenging 30 minute high intensity workouts are perfect for my busy lifestyle. He is extremely knowledgable in the fields of exercise and overall health and wellness and is just the type of person I needed to hold me accountable and push me when it comes to my fitness. I would highly recommend Richard and STAC fitness to friends and family of all ages and fitness levels. The results speak for themselves.

Richard and the STAC Fitness team have done a phenomenal job helping my team at work get in shape and have fun exercising together. In only two 30 minute sessions per week Richard has been able to push a diverse range of ages and physical fitness levels to get stronger. I highly recommend Richard and his team if you are looking for high intensity training sessions that help you build core strength and cross train your body!

As an intern at Stac I have gotten the chance to see first hand how much all of the trainers really care about their clients and the success of each them. The trainers go above and beyond to make sure results gets noticed, while caring for the individual's life out side of the gym.

Great facility!! Great place to train if you're serious and committed!!

I’ve had the benefit of working with various personal trainers to know the difference between good personal trainers, great personal trainers and a joke of a personal trainer. Richard is by far the best personal trainer I have found in the Denver area.
I met Richard a little more than three years ago and have been training with him ever since. I have had personal trainers keep me at the gym for one or more hours a session five days a week, pretty much deplete my carbohydrate intake, and had me down handfuls of supplements in an effort to whip me into shape. Not only is this unattainable for the long haul, it is not healthy. On the flip side, I’ve had trainers who barely challenged me at all. I would more times than not leave the gym without even breaking a sweat. Admittedly, there is the occasional day or two when I’m not into pushing myself that I wish I would have picked "that guy."
At first, I was a bit skeptical with only a 30-minute workout routine, wondering if it would be enough to make a difference. Richard doesn’t waste your time or his by filling your workouts with fluff. His program is filled with the right amount of cardio, weight training, and intensity that will leave you feeling challenged and confident that he has pushed you to your body’s limit.
Training the pregnant and post natal client: This was a huge bonus for me when I discovered I was pregnant. Not only did I train throughout my entire pregnancy without any complications, I looked and felt great. I was able to maintain a much leaner body than I had in my two previous pregnancies and getting back to my pre-pregnancy body happened much quicker than I anticipated. Richard put together a fitness plan which enabled me to exercise with my newborn with the aid of an infant harness, among other things. He is also sensitive to clients who need a bit of flexibility in their schedule, as he will do his best to accommodate a schedule change. Being a mom of three little boys, this has proven to be invaluable as I never quite know what’s going to happen from one week to the next.
If you are seeking real results and want a serious trainer who can take you there, I highly recommend Richard. He’s definitely worth the investment in both time and money.

Great Trainers and facility. Doneker keeps me on track physically and mentally.

Just completed 2 10-session rounds of personal training with Richard Ruiz and I really loved it. The 30-minute sessions were varied and intense. I highly recommend him and STAC!

Owner is legit. Has 30 years experience. Trust.

I’ve been working with Richard for 3 years now and my experience has been life changing. While working with Richard he’s helped me lose 40 pounds.Even in the 3 years the workouts are still challenging and he always finding new ways to push your body to new levels. He also has a great accountability plan that keeps you on track with your nutrition. Richard is very professional, extremely passionate, and great at what he does. If you’re ready to make that change I highly recommend Richard.

I have been working with Richard for years and he is extremely knowledgeable and pushes you to meet your fitness goals.

All the things ! Been with Richard since 2002. Before and after all 3 of my kids. Every time I think it’s too far or I don’t have time or whatever the excuse may be...I always find my way back because I feel the best and work the hardest when I’m training with him!

Great trainer, great gym, great experience

Richard is the best trainer, truly! He pushed me exactly as far as I needed to be pushed! He is extremely knowledgable as well!! I highly recommend him and would follow him anywhere!!

No nonsense training, smaller more intimate gym, adequate 30 minute sessions

STAC Fitness is a high quality gym with top trainers who know how to properly work with all levels of fitness. If you're just starting down the fitness road or you're already in great shape, the trainers and STAC will help you achieve your goals.

Richard is a grate trainer