Jack is an athletic trainer, owns verticaljumping.com, has a 38” vertical at 40 years old, but never dunked a basketball before his 30th birthday! Even though he made it to the semi-pro level, the 5’10” with shoes on Jack thought dunking a basketball was out of the question as a result of being born with ultra-endurance genes. When he began training his vertical, using his intelligent and calculated methods, Jack was able to reach a 40” vertical and begin dunking in just a few years. Jack is a smart coach and athlete, who even developed software to help athletes jump out of the gym, and today is coaching athletes from across the world through video analysis. Later this year, Jack will be releasing his cutting edge vertical jump book, but until then he’s pulling back the curtain on his incredible training methods for everyone exclusively on The Athlete Summit.