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  Jovanni Martinez – Karate Athlete and Black Belt

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  Chris Pinto

  Chris Grayson is by far the most knowledgeable professional in this field that I have ever crossed paths with. Chris has been educating me with training advice for over a decade, and he played an important part of my recovery process from knee surgery earlier this year.

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  Livia Cook

  "I followed his advice and in only 4-5 months the results are undeniable: I am unrecognizable in pictures (in a good way) having gained 30lbs of muscle; I am objectively much stronger (Chris writes down every session so you can see and compare your own progress); and I went from doing 0 to 4+ consecutive pull-ups, which was a BIG goal of mine."

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  Elisa Fonseca – Karate athlete and black belt

  "I appreciate his knowledge of sports science and trust his recommendations as a coach."

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  Jaime Gamboa – Karate athlete

  Chris is one, if not the most, knowledgeable fitness coach I've ever had. Thanks to USI and Chris, I will definitely be hitting the competition mats again in 2018.

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  John Fonseca – karate black belt

  I can honestly say that Chris Grayson is at the top of his field. I am always impressed by his extensive knowledge, no nonsense approach, and ways in which he challenges himself as a professional to continually learn and improve.

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  Brian O’Neill

  I came to Chris in July of 2016 with some very specific strength and performance based goals that I had finally committed to accomplishing; since I am in the field of Strength and Conditioning and bodywork I was in search of an expert. After doing extensive research on some of the best personal trainers in […]

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  Andy Perez

  For me, it's the first time I've ever seen results from training ever. To date, I'm up 10 pounds, and have received compliments from friends and family who have noticed physical changes in my body. My arms and legs are bigger and more toned, and almost weekly during training, I notice that I'm able to lift more weight.

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  Zach Larson

  If you want REAL results, look no further. When I was playing hockey, I worked with plenty of different trainers, but Chris was by far the best.

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  Antonio Garcia

  As a 6 year Brazilian Jiu-jitsu practitioner and competitor I can honestly say that I've never felt more prepared and at my physical peak for BJJ competitions than I have training at USI under Chris Grayson.

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  Matthew Chan

  "He put together a dynamic and effective program to build explosive strength for me as an amateur MMA fighter in the short span of three weeks."

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  Rachel Bolton

  He's curious, well-informed, easy to communicate with and encouraging. I've never had a better trainer!