Led by People WhoHave Actually Competed
Direct Answer
Who runs Hidden Gym?
Hidden Gym is owned by Greg McCoy and Tawna Eubanks McCoy, with programs led by specialists: HYROX Director Shelly Reynolds (16+ races, official HYROX judge) at Allen, Head Boxing Coach Tony Mack (T Mack Elite Training, Dallas Enforcers head coach) at Allen, and 6-time world champion Guy Mezger leading MMA at Richardson and North Dallas. Each location also has a personal training team — request a free discovery session to meet the coaches at yours.
Leadership
Owners &program leads.
Greg McCoy
Owner · Personal Trainer
Gym owner, personal trainer, and host of the Unleashed Podcast. Named to Allen's 2025 Top 20 Under 40, a regular radio guest on health topics, and a speaker at industry events like Club Solutions' CS Connect.
Read: Greg honored in Allen's Top 20 Under 40Tawna Eubanks McCoy
Owner · IFBB Pro
Co-owner of Hidden Gym, IFBB professional competitor, fitness model, and community advocate — including her work with Buddy Up for Life.
Read: Tawna teams up with Buddy Up for Life
Shelly Reynolds
HYROX Director · Allen
Leads the dedicated HYROX program at Hidden Gym Allen. Shelly has raced HYROX more than 16 times and serves as an official HYROX judge.
Explore the HYROX program
Tony Mack
Head Boxing Coach · T Mack Elite Training
Owner of T Mack Elite Training and Head Coach of the Team Combat League's Dallas Enforcers. Tony's team runs the boxing program at Hidden Gym Allen, from first-timers to amateur and masters competitors.
Explore boxing at Allen
Guy Mezger
MMA Head Coach · Mezger Martial Arts
6-time world champion, UFC and 3x King of Pancrase champion, 7th degree black belt, and Personal Trainers Hall of Fame inductee. Guy leads Mezger Martial Arts at Hidden Gym Richardson and North Dallas.
Explore MMA trainingThe Full Coaching Roster
Each location has its own team of personal trainers and coaches, and rosters change as the team grows. The best way to meet the coaches at your location is a free discovery session — or just come in on a free 3-day pass and say hello.
Meet your coachin person.
Schedule a free discovery session — a sit-down about your goals with a coach at your preferred location. No pressure, no generic templates.