PeeWee
A fun, structured introduction to boxing for younger athletes, focused on coordination, confidence, movement, and learning the basics in a positive environment.
A boxing gym for everyone: kids from age five, teens, and adults. Coached by Eric Zimmerman and his team of fighters at Z Boxing Gym.
A fun, structured introduction to boxing for younger athletes, focused on coordination, confidence, movement, and learning the basics in a positive environment.
For athletes building strong fundamentals, discipline, and ring awareness through technique-driven training that keeps learning active and engaging.
The core boxing class for building stance, footwork, punches, defense, conditioning, and confidence. A strong starting point for athletes 13 and up.
Designed for athletes ready to sharpen their skills with more layered combinations, ring strategy, defense, pacing, and higher-level boxing work.
Built to improve endurance, power, movement, and overall athletic performance through focused conditioning work that supports boxing inside and outside the ring.
For approved competitive athletes training for amateur bouts through focused sparring, conditioning, strategy, and coach-led fight preparation.
A dedicated training track for approved younger competitors, built to develop discipline, ring IQ, sharp technique, and readiness for competition.
Independent training time for members to work the bag, sharpen drills, recover, or get extra rounds in while staying consistent with their goals.
Team USA Coach
Eric is the Owner and Head Coach of Z's Boxing Gym, as well as a High-Performance Coach and Coaching Clinician for Team USA. He holds Gold-level USA Boxing and IBA One-Star certifications, along with a B.S. in Health Sciences from ASU. A former amateur boxer and combat veteran, Eric has coached pros, amateurs, MMA fighters, and Olympians at the Olympic Training Centers in Colorado Springs and Chula Vista — a journey rooted in resilience and lifelong dedication to the sport.
Mongolia National Boxing Team
Over 10 years of elite competitive boxing. Represented Mongolia's National Team at the 2019 AIBA World Boxing Championships. Brings technical precision and high-performance fight IQ to every session.
Mongolia's First Women's Boxing World Medalist
Over 10 years competing at the highest levels. First Mongolian medalist at the Women's Boxing World Championships. Winner of the Burte-Chono Award and 2018 Mongolian Athlete of the Year.
Full-Time Firefighter · USA Boxing Certified
USA Boxing Certified Bronze Level Coach with deep experience in Muay Thai, Kickboxing, and Boxing. A full-time firefighter who brings real discipline and resilience into every session.
USMC Veteran · Force Fitness Instructor
11 years in the United States Marine Corps. Former Force Fitness Instructor responsible for the readiness of 600+ Marines. USA Boxing Certified Coach and active amateur boxer.
Youth Programs Lead
Springfield native with a background in wrestling and amateur boxing. Leads Z's Youth Programs — building the next generation through technique, confidence, and discipline.
International Boxer & UBC Middleweight Champion
Adaptive boxer, international competitor, and UBC middleweight champion. Joanna brings strategy, joy, and inclusion to the gym, helping athletes learn the sport, build confidence, and fall in love with boxing.
NASM Certified · USA Boxing Green & Bronze
Personal trainer for ten years with a focus on strength and conditioning for combat sports. Holds four NASM certifications and USA Boxing Green and Bronze credentials, with a competitive background in basketball, soccer, track and field, and swimming.
More coming soon…