1-on-1 boxing training for beginners, competitors, and fitness clients.
Train with Coach Cosma — a defense-first boxing coach who has developed national champions and Golden Gloves fighters.
Whether you are stepping into boxing for the first time or looking to sharpen your technique, private coaching allows you to develop real skills through focused, individualized training.
Private Boxing Coach in New York City
Proven Boxing Coaching
Coach Cosma has worked with athletes ranging from beginners to nationally ranked amateur fighters.
His coaching experience includes developing:
• A National Champion
• Four Golden Gloves Champions
• Nationally ranked amateur fighters
By focusing on strong fundamentals and intelligent boxing, students build skills that translate to both competition and long-term athletic development.
Boxing Coaching Services
Private Boxing Lessons
Private boxing lessons provide individualized instruction focused entirely on your development. Sessions are structured around boxing fundamentals, technical skill building, conditioning, and defensive awareness.
Private training is the fastest way to improve your boxing because every session is tailored to your strengths, weaknesses, and goals.
Beginner Boxing Training
Many students begin boxing with no prior experience. Beginner sessions focus on building a strong foundation through proper stance, balance, footwork, and defensive fundamentals.
Learning the fundamentals correctly from the start allows students to progress quickly and safely.
Amateur Fight Coaching
For athletes preparing for competition, training becomes more structured and strategic. Amateur coaching includes technical refinement, conditioning, sparring preparation, and fight strategy designed for competitive boxing.
Meet Coach Cosma
I was born into a boxing family and received my first pair of boxing gloves at the age of four. My grandfather was an amateur boxer who competed in the Cleveland Golden Gloves. I began my formal martial arts training at the age of nine and quickly fell in love with fighting. I soon began training and competing in Kyokushin (bare-knuckle karate). After a break in my late teens, I rediscovered my passion for fighting and began training boxing and kickboxing eventually making boxing my main focus. After a move to Austin, TX I coached and developed boxing programs at numerous gyms, including Richard Lord’s and Cooper MMA.
As a coach, I have produced a National Champion, four Golden Gloves Champions, and Nationally Ranked amateurs from the ground up. Outside of competition, I have coached hundreds of people, helping them build skill, confidence, fitness and a appreciation for the beautiful sport of boxing.
I believe in a defense-first approach, placing a strong emphasis on footwork, head movement, blocking, and parrying. Only once these skills are firmly established do I begin building offense.
Who I Work With
Private boxing coaching is designed for individuals at many different stages of their training journey.
Students include:
Beginners learning boxing for the first time
Adults looking to get in shape through boxing training
Athletes seeking to improve conditioning and coordination
Amateur fighters preparing for competition
Many students begin with no prior boxing experience. Private training allows them to learn the fundamentals correctly while building confidence and athletic ability.
Private Boxing Coaching in New York City
Private boxing lessons are available throughout New York City.
Students train from neighborhoods including:
Brooklyn
Manhattan
Park Slope
Williamsburg
DUMBO
Lower Manhattan
Training locations may include private gyms, training facilities, or outdoor training spaces depending on the session and the student's preference.
What Clients Say
“I’ve had the privilege of working with Coach Cosma since August of 2023. Prior to that, I was aimlessly watching boxing tutorials on YouTube hoping to one day be able to compete in the sport of amateur boxing.
Within 4 months, Coach Cosma was able to transform me to be able to compete in my first fight!
What makes his coaching style amazing is that he is patient yet straight to the point when it comes to constructive criticism. This has helped me address various mistakes in my game and solidified my fundamentals to learn new skills day by day.
I could not recommend anyone better if you want to learn to box!”
— Sujoy Purkayastha“Coach Gabriel is the best coach you could choose to begin your boxing journey, from basics to your first sparring session, he’s helped me improve significantly but also work on self-esteem, confidence and learn this amazing sport Boxing”
— Andy Martinez“Gabriel is exceptional coach. He's incredibly knowledgeable and communicates his expertise exceptionally well.
Classes are well-structured, with each one having a clear purpose. During group classes he always takes the time to give individual corrections to students technique. This personalized attention has helped me identify my bad habits, and prevents me from developing new ones.
If you're looking for a boxing coach who is not only knowledgeable but also a pleasure to work with, look no further.”
— Brad Potts“Coach Cosma is a fantastic coach with a deep understanding of boxing. He is excellent at meeting you at your level and provides useful, actionable, individualized feedback. I’ve improved greatly and have fun boxing thanks to coach Cosma!”
— Ricardo Schaefli“As soon as Gabe became my main boxing coach I noticed immediate boost in progression. One of many things I enjoyed about his coaching style is the more effort you put into his classes the more effort he puts towards you. With that he helped me train and sign up for my first fight which went a lot better than expected and I have his mentorship to thank. Highly recommend him as a coach!”
— Jordan Foran“Gabriel is a fantastic boxing coach in both group and private sessions. His detailed-oriented instruction emphasizes boxing fundamentals, and he is great at breaking down basic and advanced techniques so they are easy to understand. I highly recommend Gabriel as coach at both the beginner and advanced levels. I have improved massively since training with him.”
— Elizabeth McFaddenTrain with Coach Cosma
Develop real boxing skills through focused, personalized coaching.
Private boxing lessons provide the fastest path to improving your technique, conditioning, and confidence in the ring.