The Tennis Movement : Foundations

Join our Tennis Foundations training! A Fun, supportive and high energy experience designed for beginners. In this series, you’ll learn the essentials of the game: from footwork and racket control to shot technique, court positioning, and how to build simple rallies — all in an engaging group gym setting.

Originally from the United Kingdom, Jon Disley is a tennis professional and certified personal trainer with nearly two decades of coaching experience. A former Division 1 collegiate athlete in the United States and a student of the world-renowned Nick Bollettieri Tennis Academy, Jon has competed and coached around the world. These experiences shaped a training philosophy built on sport, performance, and purposeful movement. His coaching blends structure with creativity, helping clients build strength, technique, and confidence through focused, high-energy sessions.

As the founder of Offset Athletic, Jon leads a training concept that finds balance between strength and skill — redefining how athletic development can take place both in and beyond the gym. Offset Athletic helps people train with purpose — teaching them to move with intent, think like athletes, and bring their sport to life.