Coach Mike Harpin

Head Coach /Managing Partner

Coach Mike has been a Strength & Conditioning Coach for 24 years. A 23 year Special Education Teacher and Football Coach (youth, high school, college & semi-professional), Mike has worked with athletes of all ages in many different settings.

Mike has always had an interest in how the science of strength and conditioning helps improve an athlete in all aspects of his/her sport and life.  He played high school football and continued to play after college for the Semi-Professional Marlborough Shamrocks.  As a 250 pound linebacker, Mike was a starter and had the opportunity to play in the National Semi-Professional Playoffs, eventually losing to a great Brooklyn, NY team in the national semi-final game.  Years later, after coaching youth, high school and college football, Mike began a short stint as an amature boxer.  It was at this time that CrossFit took hold as he went from 230 pounds to a fighting weight of 195 at 4.5% bodyfat.  After a bicep injury (detachment) forced a layoff, Mike employed CrossFit philosophies to rehab and fully heal from the surgery.

Mike is responsible for CrossFit HammerMill’s programming Monday-Friday and now utilizes CrossFit philosophies mixed with the science of Louie Simmons of Westside Barbell.  The result is a rotating schedule of max effort, dynamic and met-con WOD’s that provide opportunities for all athletes to become stronger as well as more mobile, moving better with increased power.

Coach Mike has also been an Instructor for French River Education Center in Oxford, Massachusetts teaching a post-graduate level course entitled: “Advanced Techniques and Philosophies of Fitness”


  • Master of Education, Cambridge College
  • Bachelor of Science in Education, Framingham State University
  • Minor in Health Education, Framingham State University
  • Minor in Physical Education, Framingham State University
  • Massachusetts Licensed Special Educator, Grades 5-12
  • CrossFit Level 1 Coach
  • CrossFit Level 2 Coach
  • CrossFit Strongman Certified
  • CrossFit Weightlifting Certified
  • United States Weightlifting Association Certified Performance Coach


Coach Ray Martin

Director of Operations /Managing Partner

  • CrossFit Level 2 Certified
  • CrossFit Level 1 Certified
  • CrossFit Rowing Certified
  • CrossFit Weightlifting Certified

Coach Ray is a natural athlete and competitor whose enthusiasm for sports and fitness started at a very early age. Ray engaged himself in various team sports such as baseball, cross- country, weight-training, and competitive running. Ray is no stranger to life’s difficulties and challenges, but continually works toward seeking out natural, holistic alternatives to overcome them. Ray has been down many professional paths; his varied professional background has prepared him not only for the business world but also to understand the unique needs of those he encounters each day. He brings all of his skills to CrossFit HammerMill. He is at his personal and professional best when working with others and has a sincere desire to help shape and change people’s lives. While looking for a fitness program to hone his own focus and find an alternative to distance running, he discovered the advantages of CrossFit. CrossFit begins with a belief in fitness. Ray’s CrossFit training approach begins with a belief in you. Ray is the consummate optimist who truly believes in the power of dedication, hard work, and positive thinking; his work ethic and authentic belief that CrossFit is for everyone makes him an excellent mentor, and ideal coach. Ray’s personal philosophy makes him stand out—even in a CrossFit crowd.

Coach Hilary Mason

  • Bachelor of Arts in Psychology, Nichols College
  • Masters of Education in School Psychology, Worcester State University
  • CrossFit Level 1 Coach Certified

Coach Hilary finds joy and enthusiasm from making other people fit and healthy. Having suffered from various weight issues throughout her life Hilary finds great joy in helping others realize their full potential and reach a healthy lifestyle. Her goal as a coach is to help her athletes not give up on themselves and to work as hard as they possibly can – you will often hear her say “I know it hurts now but you will be thanking me after”. Being an athlete herself, she knows just how hard it is to train since Hilary does various CrossFit competitions. 

Coach Mike Shaw

  • CrossFit Level 1 Certified
  • CrossFit Olympic Weightlifting Certified

Mike has been a coach since October 2012 where he worked at CrossFit Worcester. He came to CrossFit Hammermill in November of 2013 and joined the staff in January of 2014. Mike has been a police officer in the town of Webster for over 17 years and has also been involved in the regional SWAT team for central Massachusetts for most of that time.

Having always been active in exercise which mostly consisted of weight training with some cardio mixed in, Mike became involved in CrossFit at a local, Webster gym where he and a few friends would follow programs from various boxes given their limited equipment. Mike went to the open house at CrossFit Worcester in 2012 and did the workout “Fight Gone Bad” on a Saturday. He signed up the following Monday with some other friends and a new adventure in fitness began. He attended his Level 1 certification in October in 2012 and plans to also attend the CrossFit Olympic Lifting Certification this May.

“CrossFit has brought me to the best shape in my life. My only regret is not doing it sooner. I am stronger and in better overall shape at 41 than I was at 21. I love working with new people and motivating them to push themselves.”

Mike enjoys competing at CrossFit competitions, as well as obstacle course races such as Tough Mudder, and other challenging events such as the GoRuck Challenge. Given the somewhat physically demanding aspect of public safety, Mike thinks CrossFit is perfect for everyone involved in public safety-police, fire, and EMS.

Coach Jimmy Young Jr.

  • CrossFit Level 1 Coach Certified
  • CrossFit Olympic Weightlifting Certified

I was always involved with sports growing up, playing baseball and football throughout high school.  I also road motorcross and BMX during the summers.  After high school, I stopped exercising until it came time for the police academy.  The police academy consisted of mostly long runs and some circuit training mixed in.  After the academy, I again stopped exercising until I tried out for SWAT.  I started hitting the gym and was your typical gym goer, one hour of weight training and one hour of cardio.  While getting ready for a charity boxing event a coworker, Mike Shaw, suggested I try CrossFit.  I was skeptical at first figuring it was some infomercial fad.  After some convincing and research on my own, I decided to give it a try. The WOD from the mainsite for that day was “Nutts.”  I subbed out some of things I couldn’t do as best I could, but after about 45 minutes I was smoked; and hooked.  I continued doing CrossFit with friends in the back of a regular gym. We got a lot of looks, from trainers and customers, that though we were nuts.  After a while, doing it on my own got old and I started at CrossFit Worcester.  After a few months, I signed up for the level 1 seminar.  Once Hammermill opened up, I came on over.  I was lucky enough to be asked to join the team in January and  have been happy ever since.  Given my job, I think CrossFit is perfect.

Coach Marisa Mason

I am a coach and athlete at CrossFit HammerMill. I got into CrossFit about 4-5 years ago. I cheered for nine years priof and my favorite part was stunting. That is where I grew my love for “picking things up and putting them down”. I love coaching and seeing people become healthy and carry on with their new life style.

  • CrossFit Level 1 Coach Certified
  • CrossFit Olympic Weightlifting Certified
  • CrossFit Strongman Certified

 Coach Nicole Meeserman

  • Crossfit Level 1 Coach Certified
  • CrossFit Olympic Weightlifting Certified

I started dancing when I was about three years old and started cheering at the age of eleven. I always enjoyed dancing but once I started cheerleading and realized how far I could push myself to acquire new skills or lift harder stunts I decided to quit dancing and do cheering full time. The constant increase in difficulty kept pulling me in. I started coaching at sixteen years old. Being able to see the progress each devoted athlete was making from a coach’s eye was unbelievable. Being a part of why these young athletes love what they do was cherishing. Now having grown as a CrossFit athlete, it is rewarding to be able to coach others along their CrossFit journey.

Coach Colleen Nasis

  • CrossFit Level 1 Coach Certified

Coach Andrew

  • CrossFit Level 1 Coach Certified




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