In-person strength and performance coaching in Dallas. Structured training, personalized nutrition coaching, and a comprehensive assessment that starts you in the right place. Private 15,000 square foot studio in the Dallas Design District.
DALLAS, TEXAS · STRENGTH AND PERFORMANCE COACHING · PERSONALIZED NUTRITION COACHING
Coaching decisions built on a comprehensive assessment. Measured, not guessed.
Personalized nutrition coaching included for every coaching client.
Private 15,000 square foot studio. Professional-friendly scheduling, Monday through Sunday.
Gryffon Performance is a results-based coaching business for people who are serious about becoming stronger, leaner, and more capable. Every client trains with structure, personalized nutrition coaching, and coaching decisions built on a comprehensive assessment, so progress is measured, not guessed.
Not a public gym floor. No drop-ins, no open classes. A private 15,000 square foot studio built for coaching and nothing else, backed by 30+ five-star Google reviews.
Structured strength and performance coaching that builds a durable, capable body for life, not just the gym.
Personalized nutrition coaching aligned with your goals, schedule, and real life. Included for every client.
Ongoing review and adjustment so progress never stalls. Measured, not guessed.
Coached training built around your goals, ability, and schedule, so every session moves you forward.
Get leaner while getting stronger. Sustainable change built on training, nutrition, and accountability.
Structured strength and performance coaching that builds a durable, capable body for life, not just the gym.
Personalized nutrition coaching aligned with your goals, schedule, and real life. Included for every client.
Verified reviews, client stories, and documented progress.
Ongoing review and adjustment so progress never stalls. Coaching decisions built on a comprehensive assessment, so progress is measured, not guessed.
Every Gryffon Performance client begins with a comprehensive assessment covering your goals, lifestyle, schedule, training history, current ability, and any joint concerns, so coaching decisions are informed from day one. No guesswork. No generic starting point.
You’ve built a career and a full life. Now you want a body that keeps up. Structured coaching that fits a demanding schedule and delivers measurable results without taking over your life.
You train with purpose. You want strength and performance coaching with real structure, building a durable, capable body that performs at a higher level, in the gym and beyond it.
Submit your application. We respond within 24 hours.
A comprehensive assessment so coaching starts in the right place.
Structured coaching with personalized nutrition, built around you.
Ongoing review and adjustment so progress never stalls.
David Gryffon is the founder and head coach of Gryffon Performance, a Dallas strength and performance coaching business built around one belief: training should prepare you to be more capable in every area of life. A lifelong student of strength, athletic performance, nutrition, and business, David continues to train seriously himself while balancing life as a husband, father, coach, and business owner.
He understands that most clients are not professional athletes. They are busy people who want to look better, feel stronger, move with confidence, and perform at a higher level without letting fitness take over their lives. His philosophy is to understand the entire person, including goals, lifestyle, schedule, training history, current ability, and joint concerns, before deciding how they should train.
Serious goals deserve a thoughtful starting point. Apply for coaching, complete your comprehensive assessment, and begin structured coaching with personalized nutrition.
