Our Trainers


Trey Harris
Owner /Founder of Midtown Trainers | Creator of Cardioactive | Personal Trainer

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Matthew Shields
Personal Trainer

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Trey Harris

Owner /Founder of Midtown Trainers | Creator of Cardioactive | Personal Trainer

Midtown Trainers is proud to introduce you to Trey Harris. As a competitive athlete of over 20 years, Trey faces challenges in weight loss for wrestling, rebuilding strength for football, and building endurance for marathons and triathlons. Each sport requires different types of training, herein lies the challenge…How does one find the ideal balanced body weight, proper endurance/strength combination, and correct nutritional intake to optimize the perfect training program?

After 30 seasons of competitive sports, he has developed a unique style as a fitness trainer. High-rep, low weight endurance style training combines the use of weight-training, plyo-metrics, balance, and core to rapidly transform one’s physique.

Contact us if you would like to learn more about our fitness training or to schedule a time with a personal trainer like Trey. We will even make sure that your first visit for personal training is free.

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15 Years experience | EXPERT Certified | ACHAF Certified | USAT Triathlon | NCAA Athlete


Tough Mudder
Savage Race
Brookhaven Bolt
Hussle for Hope

Publix Half Marathon Tough Mudder EastSide Beltline 10K

Publix Half Marathon Tough Mudder Intown 10K

Tough Mudder Peachtree Road Race Summerfest 5k Kiawah Island Triathlon

Tough Mudder Chattanooga Waterfront Tri Cooper River Bridge Run SummerFest 5k Race for the Cure Olympic D.C. Triathlon 70.3 Ironman relay team

Allstate Half Marathon St. Anthony’s Olympic Triathlon Tough Mudder Publix Half Marathon

Tough Mudder Nautica Malibu Olympic Triathlon Half IRONMAN – Rev 3 S.C.

Nautica South Beach Triathlon IRONMAN 70.3 – Augusta 2011 Publix Half Marathon Tough Mudder Nautica Malibu Olympic Triathlon

Charles Harris 10k (7:10 pace PR) Miami International Triathlon 2:45 Turtle Crawl Olympic Triathlon 1st Place Nashville Half Marathon 8:00 pace

ING Miami Half Marathon 7:30 pace ING Atlanta Half Marathon (67/396 Age) 1:44:19 Charlotte Observer Half Marathon

ING Half Marathon 1:40:40 (7:45 pace) Atlanta Half Marathon (99/364 Age; 8:28 pace)

Rock and Roll Marathon San Diego 3:58:35 Chateau Elon Duathlon

Peachtree Road Race 10k Big Peach 5k Eikken Minute Man / Team Big PEACH Country Music Half Marathon Nashville

Peachtree Road Race 10k Buckhead Sizzler 10k

Buckhead Sizzler 10k

Matthew Shields

Personal Trainer

Having played football and basketball in Atlanta throughout his undergraduate studies at Kennesaw State, Matt quickly realized his appreciation for first class coaching. The leadership and competitive spirit among coaches and teammates improved with his level of experience. Through years of working with different athletes, trainers and coaches, he developed his passion for personal training.

Before reaching this level of experience, Matthew suffered back and hamstring injuries due to poor coaching. During the long and painful rehab process, his passion became a reality and his pursuit of personal training began. His life mission to become the best “coach” quickly developed upon certification 2006.

Without compromise, Matt continues to dedicate himself to his many clients. Despite the wide variety of pre-existing injuries and weight gain that clients bring him, he continues to achieve unbelievable results. The success stories and accolades include 100+ lb weight loss, high-school to collegiate-athlete development, surgery prevention and joint strengthening are just a few of these.

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