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Owner / Coach

Craig grew up on the South Shore playing multiple sports and always prioritizing fitness to get the “slight edge” over his competition. In high school, he was a three-sport varsity athlete: football, basketball, and lacrosse. He has also competed in various powerlifting competitions where he won several gold medals and set multiple Massachusetts State records, including a National title: 2015 USAPL American Open. 


Craig graduated from the University of Massachusetts Boston in 2015 with a Bachelor's Degree in Health Science. After graduation, ​he interned at Mike Boyle Strength and Conditioning (Ranked #1 Gym in America by Men’s Health Magazine) in Woburn, Massachusetts, where ​he had the opportunity to work under Michael Boyle and his coaching staff.

In 2015, Craig accepted a position as the Lead Trainer at Boston Sports Club in Downtown Boston. During his time there, he trained a wide variety of clients, from Division 1 NCAA athletes to CEOs and a client with cerebral palsy. He also taught a monthly course on fitness programming to hundreds of trainers that were employed under Boston Sports Clubs.

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​After four years at Boston Sports Club, ​Craig decided to follow his lifelong dream of combining his two passions of training the general public and athletes under the same roof. In October 2020, Craig opened Slight Edge Fitness & Performance in Braintree, Massachusetts. 


  • Bachelor of Science, Health Science from the University of Massachusetts Boston

  • National Strength and Conditioning Association - Certified Strength and Conditioning Specialist (NSCA-CSCS)

  • Precision Nutrition Level 1 Certified (Pn1)

  • Certified Functional Range Conditioning Mobility Specialist (FRCms)

  • Certified Functional Strength Coach (CFSC)



Kevin deployed a disciplined approach to his fitness and training as a high school and collegiate athlete to achieve his “slight edge”.   As a student at Dexter Southfield Prep School, Kevin was a two-sport athlete who played varsity hockey and baseball.  In his senior year, he was named a Captain in both sports.  During his tenure, Dexter hockey consistently played in the Elite 8 or Small School Championships. His baseball experience was equally rewarding as Dexter won the Small School Championship his senior year, the first time in the history of the school.  Off-season, Kevin trained at some of the most elite programs in the state including Edge Performance Systems (EPS).


Kevin also engaged certified sports nutritionist, Julie Nicoletti, Founder of Kinetic Fuel and Team Nutritionist for the Boston Bruins, to be best prepared for his college athletic experience.

Kevin is a recent Business Management graduate of the University of Maine, where he was a collegiate athlete and played for the Black Bears Hockey team, a Division I Hockey East program.

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His commitment to disciplined execution served him well in meeting the demands of a rigorous elite collegiate hockey program.  In addition to meeting the coaches' and trainers' academic and fitness expectations, the team was expected to contribute to the community.  Kevin and other team members often mentored local area school children on the importance of academics, fitness, and nutrition.  


Upon graduation, Kevin began personal training at Slight Edge Fitness and Performance and quickly discovered an appreciation for the approach to their fitness programs and Craig’s personal commitment to the member’s experience and their progress.  With the intention of carrying his passion for fitness forward in his career, Kevin became an intern under the mentorship of Owner Craig Kelly.  Upon completion of his internship, Kevin accepted a position as a trainer for Slight Edge.

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