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Bill Knowles


33 years of experiences

ATC -Certified/Licensed

 Athletic Trainer

Master Reconditioning & Athletic Development Coach

Bill Knowles is world-renown in the field of Sports Reconditioning and Athletic Development, with over 33 years of experience at the professional, Olympic, and elite junior levels of sport.  Bill specializes in developing and implementing reconditioning strategies for athletes following injury; from immediate post-operative work through a return to performance.   


As a Certified/Licensed Athletic Trainer, Bill began his career in 1989 in alpine ski racing at the world renown Burke Mountain Academy in Vermont, USA.  During his fourteen years Bill honed his skills in reconditioning and then moved in the direction of a performance director with the aim of reducing injury rates through preparing better ski racing athletes.  It was during this experience that Bill clearly understood that the best injury prevention strategy was entwined in the best athletic development process…and this journey was the basis of defining what reconditioning was to become; a performance-based approach for helping athletes following injury.        


Over the last eighteen years Bill has worked with athletes and teams from around the world. He has lectured and trained staff from over 80 professional sports organizations throughout North America, Europe, and Australia; in addition to multiple colleges and universities. This includes governing bodies of sport such as the RFU (England Rugby), The FA, Australian Institute of Sport, Chinese Olympic Committee, US Soccer, US Skiing, The England Institute of Sport, and the NCAA.  Athletes and Teams have utilized Bill’s services including Manchester United, Chelsea, Manchester City, Arsenal, Real Madrid, Saracens Rugby, Philadelphia Eagles, SanFrancisco 49ers, NY Yankees, Geelong Cats, and the NY Mets. 


Notable athletes include Tiger Woods, Alex Rodriguez, Andy Murray, Peyton Manning, Carson Wentz, Dara Torres, Jonny Wilkinson, Frank Lampard, Nic Naitanui, and Nik Kronwall… to name a few.    


Currently at Knowles Athletic in Philadelphia, PA, Bill has a world-class reconditioning facility to meet the needs of athletes who have been injured, or have chronic performance deficits through an injury history. They immerse themselves for many days or weeks developing a strategy to improve their return to performance and prolong their career. Alternatively, he travels to sports teams, organizations or specific athletes as a consultant.


Bill Knowles was previously involved with iSPORT in Vermont and HPSports in Wayne, PA.   

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