The Team
MEET THE COACHES
Head Coach · Founder
COACH
TONY G.
TONY G.
Boxing & Fitness · 26+ Years Experience
Coach Tony G. has dedicated his life to the sport of boxing, beginning his journey at just 10 years old. With over 26 years of coaching experience, he has worked with athletes of all levels — from complete beginners stepping into the gym for the first time to competitive and professional fighters.
His coaching philosophy goes beyond punches and technique — he emphasizes personal growth, accountability, and long-term health. In 2011, he opened his first gym, Milpitas Boxing & Fitness. In 2016, he co-founded Smash Gym Milpitas, mentoring athletes and future coaches alike. Many of his students have gone on to open their own gyms.
Now leading Box Fit, Coach Tony brings a boutique-style experience focused on boxing fundamentals, fitness, and community — accessible, structured, and results-driven for every goal.
26+
Years Coaching
2
Gyms Founded
5+
Coaches Developed
Ages 5+
All Levels Welcome
Boxing Coach
COACH
MARY ANN
MARY ANN
20+ Years in Combat Sports · Black Belt
Mary Ann Orsburn has been shaped by combat sports for over two decades. Her journey began at age seven at the legendary Ernie Reyes' West Coast World Martial Arts, where she cultivated the discipline and precision required to earn her Black Belt by age 12. This early immersion in martial arts created a lifelong foundation for movement, focus, and technical mastery.
Seeking to test her skills in the ring, Mary Ann transitioned into Muay Thai, training and competing as an amateur fighter out of the world-renowned Combat Sports Academy (CSA). Immersed in one of the most rigorous training environments in the world, she developed a deep "Fight IQ" and a firsthand understanding of the mental and physical grit required for competition.
In recent years, Mary Ann has focused her expertise on the Sweet Science of boxing — merging the explosive power of her Muay Thai roots with the refined footwork and head movement of modern boxing. Her mission is to build functional power, technical excellence, and the unshakable confidence of a fighter in athletes of all levels.
20+
Years in Combat Sports
12
Age Earned Black Belt
CSA
Muay Thai Fighter
All
Levels Welcome
Coach · Box Fit
COACH
GEORGE
GEORGE
Boxing Coach · Real Fight Experience
George Diaz began his boxing journey at the age of 13 under the guidance of Coach Tony G., building a strong foundation rooted in discipline, technique, and consistency. Through years of training and competing in the sport of boxing, George has developed both his skills inside the ring and his knowledge of the fight game.
Along the way, he gained valuable experience working alongside other fighters and coaches, allowing him to grow into a well-rounded coach. His hands-on approach and real fight experience give him the ability to connect with members of all levels — from beginners to advanced athletes.
At Box Fit, George is dedicated to helping members improve their technique, build confidence, and push past their limits while keeping training challenging, fun, and effective.
13
Age Started Boxing
Ring
Fight Experience
All
Levels Welcome