Rendy
Co-Owner
- Kinesiology degree, University of Texas at Arlington
- Assisted in running and managing the original MetroFlex in Arlington for 15 years
- Competitive record in bodybuilding, powerlifting and strongman
About
Earned, not claimed
The Castle carries forward a training lineage that helped set the modern standard for hardcore bodybuilding and strength work. We keep that standard the same way it was built — under the bar.
The owners
Rendy and Christine own and run MetroFlex Gym–Ft Worth, bringing a combined 20+ years in the fitness industry to the floor every day.
Christine
Co-Owner
- 4 years, United States Army
- 9 years as a police officer
- Kinesiology degree, University of Texas at Arlington
- Currently pursuing an MBA
- Competitive record as an NPC Figure competitor and in powerlifting
The building
- 50,000 sq ft
- The largest MetroFlex location.
- Boxing & MMA school
- Both run on site, inside the building.
- Strongman, Olympic & Powerlifting
- Dedicated areas for each, not shared corners.
- Cardio equipment
- Full cardio floor alongside the iron.
- Running trail
- Outdoor conditioning without leaving the property.
How we treat people
Members here are treated like family. Whatever your fitness goals are, this staff will support you in reaching them — through hard work, dedication and discipline. That is the whole method. There is no shortcut being sold at the front desk.
Respect on this floor is earned through effort, and it's given to everyone who shows up willing to work — whether it's your first week or your fifteenth year of competing.
Relentless work ethic
Results are earned under the bar, not claimed.
Humility
Big lifts over big talk.
Earned respect
Given to every level, from day one to the stage.
No excuses
Discipline and consistency, showing up when it is inconvenient.
Family culture
Beginners and elite competitors train side by side.
Faith and service
Veteran-owned, and staffed in part by former military, police and fire.