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Owner / Coach

Craig grew up on the South Shore, engaging in multiple sports and always prioritizing fitness to gain the "slight edge" over his competition. In high school, he excelled as a three-sport varsity athlete in football, basketball, and lacrosse. Craig has also showcased his prowess in various powerlifting competitions, securing several gold medals and setting multiple Massachusetts State records, including a National title at the 2015 USAPL American Open.

Craig graduated from the University of Massachusetts Boston in 2015 with a Bachelor's Degree in Health Science. Post-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 privilege to work under Michael Boyle and his coaching staff.

In 2015, Craig took on the role of Lead Trainer at Boston Sports Club in Downtown Boston. During his tenure, he trained a diverse clientele, ranging from Division 1 NCAA athletes to CEOs, and even a client with cerebral palsy. Additionally, he conducted a monthly fitness programming course for hundreds of trainers employed by Boston Sports Clubs.

After four successful years at Boston Sports Club, Craig decided to pursue his lifelong dream of uniting his two passions—training the general public and athletes under the same roof. In October 2020, Craig realized this dream by opening Slight Edge Fitness & Performance in Braintree, Massachusetts.

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  • 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.

Kevin Hock SE.HEIC

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.

Matt Reilly


Growing up in Braintree, Matt demonstrated a keen involvement in sports from a young age. In high school, he excelled as a three-sport athlete, participating in football, wrestling, and lacrosse. Throughout his high school years, Matt honed his motor skills and athletic prowess in the weight room, ultimately earning the opportunity to play college football at Curry College, where he attained a Bachelor of Science in Public Health and Wellness.


During his tenure at Curry, Matt undertook a valuable internship with the strength and conditioning coach of the football team, solidifying his passion for athletic development. This experience inspired him to pursue a career as a strength coach, driven by the desire to provide young athletes with the tools to reach their full potential.


Matt holds certifications as an ISSA Certified Personal Trainer and a PPSC Certified Pain-Free Specialist, reflecting his commitment to professional excellence in the field.

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