The Team

Meet the people who make the gym. We all come at health and fitness from different angles because we know all people have unique needs and different goals. As a team, we deliver the results you want and a well-rounded fitness experience.



"Taylor will help you realize your potential. He has been a fantastic trainer!"

- Laura B. | Dallas, TX.

Taylor Metzger

Founder, Lead Trainer, Cooper CPT/BRT

I started working out at the age of 15 knowing nothing. One of my motivators was getting bullied. I was 6'1 and 150 pounds, a grasshopper. Over the years, I learned more and more and decided to get my personal training certification when I was 20. I started out at 24-Hour Fitness and have worked in various gyms since. I now train at one of the best gyms in Dallas where I have been for the last 4 years. It's a great community and a great place that has allowed me to assemble some of the best trainers and fitness professionals under one roof. 

Personal training is extremely fulfilling to me. It's the best feeling ever to know I have the ability to help change others lives as I have my own. The self confidence that being fit can help anyone achieve is like throwing a stone into water and watching the ripples. My methods are simple: show up, work hard, have a good attitude, be consistent, follow and trust the process. The more you put in, the more you will get out. I practice what I preach, and I better, or why else would you hire me to tell you what to do?

- 13 + Years of Training Experience, Certification from the Cooper Institute - Personal fitness specialist & Biomechanics of resistance training, CPR, Eagle Scout 



Meet our trainers


Brooke Roberts

Being a Surgical Nurse, I have developed a unique perspective on how exercise and a well balanced diet (or lack of) play a role in promoting health. With this knowledge, I have taken my passion, fitness and healthy cooking, and have decided to make a career of helping others achieve their goals. 

When I am not working at the hospital or continuing my fitness journey, I enjoy educating about nutrition, pathophysiology, and holistic remedies. My goal is to not only help you feel stronger physically, but it is to help you feel the best about yourself. I hope I can make fitness fun and help motivate you through your entire journey


NAFC Personal Training, Bachelor of Science Nursing, ALS, PLS, CPR

- Weight lifting
- Resistance Training
- Core Work
- Nutrition


Michael Jon

As an executive fitness coach, I serve as personal trainer, nutrition advisor and supplement counselor. My clients are busy and demanding, so we work together to tailor a program that will deliver results with maximum efficiency. 


Trainer AFAA, ACE Stretch Certified

- Healthy Eating Plans
- Dynamic Resistance Training
- Flexibility, Balance, and Core Work
- Group Work Outs
- Boot Camps
- Healthy Lifestyle Coaching & Workshops


Kathleen Iliff

My personal goal is to be the best rounded athlete I can be. I train for strength, power, and endurance and highly believe in the importance of training for health over aesthetics.
My goal is to help my clients reach their full potential and optimize their overall health.


Trainer NSCA and B.S. Exercise Science, IFPA Figure Pro

- Structured Resistance Training
- Personalized Training Sessions


Ryne Gleich

I moved to Dallas in 2012 and became certified through ISSA as a Strength and Conditioning Trainer shorty after that. I’ve competed in and won the Europa Supershow bodybuilding competition. I’ve worked at a major boxing gym, commercial gyms, and huge indoor and outdoor group training company and have finally called Diesel Fitness my home for training. I’ve taken my 10+ years of training in Muay Thai and boxing, group training experience and my love and passion for individual training and combined them to give my clients a truly unique experience.



- Boxing & Muay Thai
- Group training
- Bodybuilding & contest prep