"GNG is the best boxing gym in the area, has amazing coaches that know how to teach and motivate kids from all levels of boxing, such a positive atmosphere, my son has gained so much confidence and knowledge at this gym."
Jahvon Miranda

We're building champions in the ring — and in life. A safer path for Pomona's youth, a stronger fight for every adult who walks in. Your first training session is on us.

Train Free
Your first session is on us — no card, no contract.
Pomona Members Trained
Years Building Champions
Amateur Title Holders
Free First Class Policy
Don't take our word for it. Here's what Pomona parents, youth, and adult members have to say about training at GNG.
"GNG is the best boxing gym in the area, has amazing coaches that know how to teach and motivate kids from all levels of boxing, such a positive atmosphere, my son has gained so much confidence and knowledge at this gym."
Jahvon Miranda
"I tried the adult class with coach AB with my friend and we absolutely loved it. We had no prior boxing knowledge and the coach was very patient, encouraging, and helpful. 10/10 would def recommend!!!"
Keely Cole
"GNG boxing is such a great place! My daughter was able to get the first class for free so she can see what boxing is all about and she loved it! Not only were they very professional but the coach was amazing!"
Erika S
From the eight-year-old learning their first jab to the amateur fighter prepping for a title shot — every program at GNG is built around technique, discipline, and a coach who actually knows you.

Two age brackets (5–12, 13–17). Technique-first instruction, discipline, mentorship. Where confidence is built before the first bell.

Private sessions built around your goals — fitness, fundamentals, or fight prep. Custom plan, one coach, direct accountability.

Controlled, supervised, safety-first. Open to members and visiting boxers — where technique becomes instinct.

Real boxing training for adults. Cardio that actually works, strength that holds up, technique that earns respect.

Our amateur fighters earn their spot. Tournament prep, fight-night coaching, the road to a sanctioned bout.

Job placements, trade learning, mentorship. For youth who don't pursue boxing pro — we open other doors.
Pick a time that fits your schedule. No payment, no commitment, no questions. Just walk in ready to work.
Book NowA one-on-one orientation. We assess where you're at, what you want, and build a plan that actually fits. No cookie-cutter classes.
Join group classes, lock in 1-on-1's, or both. Show up, work hard, and we'll handle the rest. Your transformation starts on day one.

Built for Pomona's kids. Open to everyone.
GNG Boxing stands for transformation. In a world where young people face countless challenges — and the wrong influences are always loud — we provide a positive alternative.
The "Gloves Not Guns" philosophy is our commitment to giving Pomona's youth the tools, mentorship, and community they need to choose a path of strength, discipline, and success.
Every young person who walks through our doors becomes part of a family — dedicated to their growth, inside the ring and far beyond it.
Character
Discipline & respect taught in every class
Community
Mentors who know your kid by name
Opportunity
Trades, jobs, & life paths beyond the ring
Clean, professional, fully-equipped — and 5 minutes from downtown Pomona. Free parking. Walk in any time during open hours.
Month-to-month. Cancel anytime. Your first training session is always free — no card on file required.
Adult Membership
For ages 18+
Try free first → no card required
Youth Membership
For ages 5–17
Try free first → no card required
Filter by program. Show up early, gear bag in hand, ready to work.
Monday
Adult Class
Boxing & Fitness
Kids Class
Kids Class
Competition Team
Teen Class
Tuesday
Competition Sparring
Adult Class
Wednesday
Adult Class
Boxing & Fitness
Kids Class
Kids Class
Competition Team
Teen Class
Thursday
Competition Sparring
Adult Class
Friday
Adult Class
Boxing & Fitness
Kids Class
Kids Class
Competition Team
Teen Class
Saturday
Sparring
Not sure where to start?
Book a free assessment. We'll match you with the right program.
Book Assessment* Class times and availability are subject to change. Please contact us or book your session in advance to confirm the current schedule.
253 E Park Ave
Pomona, CA 91766
Mon - Fri: 9:00 AM - 8:00 PM
Sat - Sun: 11:00 AM - 2:00 PM
(909) 326-7076