COACHES

Daniel Belli | Owner

Strength and Conditioning Coach


Daniel Belli has owned and operated Mason Street Strength and Fitness since January 2016. He earned a Bachelor of Science in Exercise Science/Physical Education at Southern Connecticut State University, he is certified in Physical Education K-12 by the State of Connecticut. Daniel has taken his experience as a collegiate football player as well as a decade in the industry to help develop and implement programs for adults and youth athletes alike. His training approach encompasses the mind and the body to provide clients with a positive experience for achieving their fitness and lifestyle goals. Daniel has helped many high school student athletes elevate their performance to allow them the opportunity to be recruited for college sports.

In addition to working with clients directly, Daniel has also held management positions, both as a Fitness Training Manager and Personal Training Director, in fitness clubs throughout Connecticut and New York. He has also coached high school football as well as directed and implemented their strength and conditioning programs.

Additional Certifications: Certified Physical Preparation Specialist (CPPS), FMS Level 1 & 2, CPR, First Aid & AED.

Kyle Marandino | Coach

Strength and Conditioning


Kyle is a Certified Strength and Conditioning Specialist (CSCS) through the NSCA. In addition, he is a Registered Strength and Conditioning Coach (RSCC), an elite certification that distinguishes individuals who have substantial experience as a strength and conditioning coach in the professional or collegiate setting.

Prior to joining Mason Street Strength, Kyle was a Strength and Conditioning Coach within the Boston Red Sox organization where he assisted in the design and implementation of the strength and conditioning program for both major league and minor league players. Earlier Kyle worked as a Football Strength and Conditioning Intern at the University of South Carolina where he assisted in all aspects of the Gamecock football strength and conditioning program as well as with track and field.Kyle has also worked with male and female athletes from a wide variety of Division 1 sports at the University of Connecticut, Quinnipiac University, and in the high school setting.

Kyle graduated from Springfield College with a BS in Applied Exercise Science.

Brett Parsell | Coach

Strength and Conditioning


Brett received his BS in Exercise Science from Central Connecticut State University. Prior to that he was a two sport athlete at Becker college, where he played football and lacrosse. Brett's most recent experience was that of a sports performance coach at Velocity Sports and Parisi Speed school in Westchester, NY. With over 5 years of experience in the field Brett has worked with countless athletes and many high schools and AAU programs in Fairfield and Westchester Counties. Brett is a Certified Exercise Physiologist through the American College of Sports Medicine and is CPR/ AED certified through the American Red Cross.

"After receiving several offers from facilities in Greenwich and Rye, I ultimately chose Mason Street Strength & Fitness because of the atmosphere and the coaches," Brett explains. "As soon as you walk down the stairs you know it’s time for business! As their coach, clients can expect a FUN but tough workout. I’m most looking forward to adding even more value to a facility that has helped so many reach their maximum potential, adults and young athletes alike."

Nichele Allen | Coach

Strength and Conditioning


Nichele completed her bachelors degree in Biology from Southern Connecticut State University, focusing on a pre-med concentration but decided not to pursue a medical degree. After graduating, Nichele found a love for kickboxing and it was there that she decided to take her pre-med background to the exercise field. She completed the accelerated program at the National Personal Training Institute and earned her CSCS and CPT certification from National Strength and Condition Association. She worked for NPTI for a year and half as their head instructor before working as a trainer full time. She has worked in corporate fitness, private gyms in Greenwich, Westport and Norwalk, for Equinox fitness clubs, and as well as her own private business venture. After 10years in the field, she is now joining the Mason St Strength team. In addition to her Strength and Conditioning Specialist certification, she is a 200HR RYT yoga certified instructor with speciality certification in prenatal, restorative, and aerial yoga. She also has instruction in Pilates and kickboxing, as well as corrective exercise, post rehab training, and nutrition counseling from AASDN. She is currently working towards LMT distinction from Finger Lakes School of Massage.

She has worked with clients ranging from 8 years old to 90 and of all fitness levels. Nichele's style of training includes a fusion of all of her continuing studies. Her own drive in the fitness industry is to continuously educate herself in various training modalities to share that knowledge with her clients. She believes in having a variety of training modalities so that no matter one's fitness level, there is a way to keep it fun and still accomplish one's training goals. Her philosophy is that every person she trains is an athlete, just not every one does it professionally. Some of us are just training for life.

Keith Kirwan | Coach

Strength and Conditioning


Keith Kirwan’s training begins with a plan tailored for each client. Keith brings together movement, posture, proper mechanics, injury prevention, and strength for a comprehensive, total body approach. There is no one way to be strong, so whether your goal is ligament/tendon strength, cardiovascular strength, muscular strength, postural strength, or explosive speed, Keith has a plan. It’s all about training harder and smarter to achieve success.Keith’s journey into the field of physical preparation began early. He discovered that natural athleticism wasn’t enough to stand out; to shine requires physical preparation and training. And the results quickly showed: he made tremendous improvements on the football field and in track and field. Today, Keith uses his trainer education and first-hand experience to excel as a coach, to inspire and guide others.Keith is a certified NASM Certified Personal Trainer and a CPPS Certified Physical Preparation Specialist.

Alex Cohen | Coach

Strength and Conditioning


Alex Cohen is a Certified Pre and Post Natal Trainer and Licensed Massage Therapist. Alex has a background in Exercise Science, she works with clients throughout their pregnancy to help them have a healthy, strong body, mind and a healthy baby! Science has shown that exercise throughout your pregnancy is beneficial for both mom and baby. Alex continues to work with her clients post pregnancy to achieve their fitness goals. Having just welcomed her daughter June a few months ago, she has been through the process herself! Alex’s background in massage and training allows her to create a unique and knowledgeable programs for each client to help achieve a strong body and she can assist to ease the pain when necessary. .