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CrossFit Kumba Coaches

At CrossFit Kumba, we only hire the best of the best!

Our CrossFit Kumba Personal Trainers hold nationally accredited certifications and/or their degree in the field. CrossFit Kumba Personal Trainers wear many hats, not only serving as your personal coach, but also as an educator, positive role model, and a major source of motivation and encouragement!


Are you the type of personal that has a difficult time sticking with a program? Having appointments made weekly with a personal trainer will hold you accountable and eliminate your excuses!

Personalized Instruction

An exercise program that works for one person may not work for another. CrossFit Kumba Personal Trainers will customize the appropriate workout program to help you meet your individual goals and get results fast!

Break Through Plateaus

Many people suffer from plateau syndrome where it seems like no matter what you do, you no longer see improvement. CrossFit Kumba Personal Trainers can help you achieve new levels of fitness that you never dreamed possible!


CrossFit Kumba Personal Trainers will assure that the settings of your equipment are adjusted accordingly and that your posture, technique, and breathing are correct throughout your workout.

Meet Our CrossFit Trainers


Thomas McCormack

Head Coach CrossFit Level 1 Certified

Thomas has been in the fitness industry for 11 years and has practiced in almost all areas of health and wellness across the commonwealth. He is also a NASM Corrective Exercise Specialist, Les Mills Instructor, L1 CrossFit Trainer, and also contributes as a Physical Therapy Aide at a local New England Hospital. Concentrating on the Human Movement System, Thomas brings a philosophy of high intensity training that coexists with sound bio-mechanics to create a pain-free, functional, Elite athlete.

Gabrielle Montenegro

Gabrielle Montenegro

CrossFit Level 1 Certified

My name is Gabrielle Montenegro (Gabby for short) and I’m original from Saratoga Springs, NY and have been in the Boston area for 3 years now. I have grown up playing sports all my life and I played college ice hockey at SUNY Oswego in New York State. As well as coaching CrossFit, I also coach the Girls’ Varsity Ice Hockey Team at Beaver Country Day School in Chestnut Hill. Once graduating from college I tried to find the same competitive, fast pace environment like hockey and within a couple months I discovered CrossFit and have been doing it now for 4.5 years and have loved it ever since! Within the last year, I have been lucky enough learn and get taught by some of the best CrossFit Coach in the business at Reebok CrossFit One which has allowed me to spread that information and knowledge I have learned to a new CrossFit Community. CrossFit has allowed me to continue pushing myself physically and mentally and has introduced me to so many like-minded people that known the importance’s of fitness in once life. As a coach I want to inspire individuals to make long term lifestyle changes, and I have found that CrossFit’s scalable intensity and commitment to functional movement make it the perfect program for individuals of all ages and abilities. I always like to tell new people or people interested in trying CrossFit that anyone can take part and do any of the functional movements in CrossFit. All the movements shown and taught in CrossFit are actions we use in the world outside of the CrossFit Box, so should all master them with the best of our ability.

crossfit trainer john quigley

John Quigley, CPT

CrossFit Level 1 Certified

John has been a Certified Level 1 CrossFit Trainer since 2010. He started training with CrossFit in 2008 while stationed in Virginia. John was bored with the traditional Army physical fitness program (pushups, situps, & run) and wanted to find something that would challenge him mentally and physically. After his first session at CrossFit Alexandria (later Outlaw CrossFit), he was hooked. Since then John has visited and worked out in over 15 CrossFit Affiliates across the U.S. and last coached at a Military Affiliate. He is known for his vast collection of CrossFit t-shirts, loves any workout with a heavy deadlift, and has developed a special love/hate relationship with the hero WOD “DT.” John is passionate about CrossFit and has made it his personal goal to prove genetics don’t have to be an excuse for achieving fitness and living a healthy lifestyle.


Tiffany Ballinger, CPT

CrossFit Level 1 Certified

Tiffany grew up a decorated competitive gymnast and dancer from Roxbury, MA. She started coaching gymnastics at the age of 13. Gymnastics was a major part of her life and coaching just did not fill the competitive void. In 2013 she found CrossFit and fell in love with the community, the WOD’s, the support and most of all the competitiveness of the sport.

2017 she obtained both her Level 1 and CrossFit Kids Cert. Her goal is to touch as many lives as possible through both CrossFit and gymnastics.