"Working with Andrew has been nothing short of transformative. His dedication not only helped me reach my initial fitness goal (to hike the Four Pass Loop in the Maroon Bells) but also inspired the creation of new, challenging objectives. What truly sets him apart is his exceptional ability to adapt workouts to accommodate injuries and guide effective rehabilitation.

His extensive knowledge across various fitness modalities makes each session dynamic and engaging. His personalization of workouts showcases his commitment to my well-being. Moreover, his encouraging nature has played a crucial role in pushing me beyond my limits and keeping me training. I

wholeheartedly recommend Andrew for his dedication, personalization, encouraging spirit, kindness, and a wealth of knowledge that makes every session both effective and enjoyable."

I’ve been with Andrew for over six months now and it’s been an incredible journey. From the very first session, he made me feel comfortable and confident, setting a welcoming tone that made me look forward to each workout. What sets Andrew apart is his attention to detail and personalized approach. He took time to understand my fitness goals, lifestyle, and any limitations I had. Each workout is tailored to push me just enough, ensuring steady progress while minimizing the risk of injury. He is not just about physical training; he also provides valuable advice on nutrition and recovery, which has been a game changer for me. For anyone looking to make a positive change in their life, I cannot recommend Mack enough.

"As someone brand new to the gym & personal training, I wasn't sure what to expect, but surely did not anticipate enjoying the sessions as much as I did. Working with Andrew has been rewarding because he is:

1. Patient and encouraging: When I was slow to pick up on something, or just straight up uncoordinated, Andrew was always patient and encouraging. I never felt self-conscious.

2. Knowledgeable: Whatever your issue or goal, Andrew has the depth of knowledge to tailor sessions that respect limitations while progressing towards goals.

3. Personable: You could get some drill sergeant who barks out "Lift 10 times!" but if you'd rather have someone a little more enjoyable to be around, this is your guy."

“Andrew is focused on helping me achieve my goals and makes every session challenging (& somehow fun). He has great attention to detail when it comes to form and not only have I gotten noticeably stronger, but my range of motion has also greatly improved. He tailors each workout to my individualized goals and is a pleasure to train with and talk to.“

"Training with Mack was the best choice I could have made. He always pushes me to get the most out of my workouts, and he leads by example with his own phenomenal work ethic. I have met my health goals, and my physique goals are within reach thanks to his motivation. Get with Mack to hit your goals!"

"Andrew really helped me learn all the basics I need to strive toward my goals! He was very thorough and helped me gain the confidence I need at the gym. He doesn’t just give you programming, he gives you the tools you need to make lifelong changes!"

I am an Olympic weightlifter who sought out Andrew to help me become a more functional athlete. Specifically, I needed a trainer who could understand my imbalances and shortcomings as related to Olympic weightlifting and develop a program to address them. Over the last several months, Andrew has done just that. My newfound comfort and stability in the overhead jerk position are a testament to his expertise (very happy about this!). Andrew was able to take on an athlete from a different sport, create an effective action plan, and significantly improve my performance. He is extremely knowledgeable and passionate, and it has been a pleasure to work with and learn from him. Highly recommended!

"Andrew is a very experienced trainer. He takes the time to go over specific details and makes sure you understand what exactly you’re doing per the specific program. He is very motivating and encouraging! Even though he works with me virtually he takes the time as if he is in person with me."

Andrew is one of the most knowledgable & approachable guys
i've come to known. He's dedicated to get people to their goals & enjoy the process along the way.

Andrew has been an outstanding trainer for me. He is very knowledgeable about the effects different movements have and has been able to provide me with a steady program, and continual adjustments as I have been progressing towards my goals. As a bonus its be enjoyable and even fun.

Andrew’s passion for fitness is not just a job for him; it's a lifestyle that he wholeheartedly embraces. His dedication is contagious. Motivating me to test my limits and bring out the best version of myself - in and outside of the gym. I highly recommend Andrew to anyone looking to start their fitness journey. He’s one of a kind!

Andrew is such an experienced and intelligent coach. He takes the time to continually learn and improve on his skills and knowledge. He also makes the point to practice what he preaches by training hard and exemplifying a great leader.

Without Andrew, I wouldn’t have the confidence to go shirtless to the clubs as often as I do!

Andrew is the best trainer I’ve ever had. He pushes me to be my best and gives the best encouragement on days I’m not feeling it. I’ve noticed my strength and endurance improve immensely in the few months I’ve been working with him. Andrew tailors your workouts to your goals and holds you accountable to help you achieve them. Would recommend Andrew to anyone!

Awesome Trainer!! Helped me get back in shape and on the right track almost right away. If you’re trying to really get on the right track and understand your body then he is the you need building your program and helping you along the way.

I’ve worked with Andrew for several years now, and there are few people who know their stuff better than him. He’s not only great with weightlifting training—with his help, I’ve been able to complete multiple half-marathons and am currently training for a full marathon.

Andrew is also very easy to talk to and will help you to understand the reasons for doing certain exercises and the muscles that they train. He’s done a great job helping me reach my goals, and I can’t recommend him highly enough.

Hired Andrew as my running coach for Leadville 50. He created a 4 month grueling program that got me ready to conquer this Ultra. Honestly had no idea I could even finish this race before I hired Andrew. That all changed once I saw his programming and started going through it. After that, it was all about how fast could I finish!!! Can’t recommend him enough!

Mack is a great trainer. He pays attention to how you are doing the exercises and ask all the right questions. He also mixes things up so you get to do a wide variety of exercises.

I have been training with Andrew for almost a year and it has exceeded expectations. He has taken my strength and mobility to another level, creating workouts specific to my body’s strengths and weaknesses and getting me out of my normal routine. He helped me run my first 50k-pain and injury free!! Andrew is always in a good mood and always ready to motivate.

Andrew is an all star trainer. He takes time to listen to what you want out of training and designs a program to meet your goals. He changes the routines so you don’t get bored and makes it challenging but still fun. I highly recommend him.

One of Andrew’s online clients. Love how flexible he is with my schedule as it is ever-changing. Love the app he uses and the videos for demonstrations on exercises. Very easy to talk with and understands what you are looking for in your fitness journey.

I’ve worked with several different personal trainers since I started my fitness journey 10 years ago and Andrew has provided the most transformative experience thus far. Andrew provides a nonjudgemental and encouraging space that has allowed me to push myself beyond what I thought was capable. He provides tailored workouts that are challenging yet achievable while ensuring proper form and safety. In addition to his training skills, he comes to each session prepared and organized. I would highly recommend Andrew!

10/10 experience. I wanted some professional advice on how to keep myself in shape for snowboard season and that’s exactly what I got. Mack was amazing to work with and I have never felt more prepared and in shape at the beginning of a season.

I’ve worked with Mack for six months, and I appreciate how he translates his experience to my level. He always starts with an emphasis on functional, rather than isolation exercises for strength, and is closely attentive to form issues that could cause problems if unaddressed. This gives me the confidence to push harder and keep coming back.

Andrew created a great strength & conditioning program for me to help with my running goals and to stay injury free!

Andrew is an amazing training that designs a program for his clients needs. He helped me to gain muscle and push past plateaus!

Andrew was instrumental in helping me prepare for my first Spartan Race! His positive energy, knowledge and sense of humor make him the best in the biz.

Andrew is extremely knowledgeable about injury prevention and rehab! He’s helped me with my current issues, but has also helped me prevent them from coming back through the exercises he has me doing. Would recommend to anyone with an athletic goal or history of injuries.

Andrew is awesome! He is knowledgeable, focused, patient, and appropriately humorous. I’m seeing positive results with every session. He came highly recommended, and is obviously respected by his peers in the training community. Sometimes you get lucky with a choice. I certainly did choosing Andrew as my trainer.

Andrew is a great trainer. He knows how to push just enough to get results without burning one out. He's a stickler for technique and form which I've found to be very beneficial. Plus, he's a fun guy to be around which makes the hard workouts go a little bit easier. If you're looking for a trainer in Denver, Andrew is your guy.

This summer I signed up for multiple endurance events that are VERY out of my wheelhouse. I like lifting and I like shorter events like HYROX etc but a marathon was a very scary goal. I had my first ever sprint Triathlon August 24th and my first ever full Marathon in Kauai on September 1st.

Working with Andrew was a top priority for me because I wanted to train efficiently, effectively and smart. I broke my leg last year and deal with some pre-existing knee and joint issues so it was important to me to focus on longevity not just success of the races.

Andrew was wildly helpful and not just a pre-training plan but warm-ups cool downs mobility and injury prevention and mitigation. I developed plantar fasciitis in both feet 12 weeks into training that progressively got worse and worse as I got closer to my races. I was really nervous and afraid that I wasn’t going to be able to complete them at all, but with his help and guidance he coached me through the appropriate recovery and training to where I was able to not just finish both events, but exceeded my goals and follow the exact plans that we set out to do

If you’re looking for trainer and an expert in endurance and injury prevention, Andrew and Mack Summit training is the best around.

10/10 will work with him again for future races!