At STACK it is All About our Athletes!
At STACK Sports in Mahwah, our athletes are the heart of everything we do. Our mission is to help them develop a strong work ethic, discipline, and a positive mindset—qualities that not only lead to success on the court but also in life.
We’re committed to providing a place where players can grow, push their limits, and create memories that last a lifetime. Whether they’re aiming to improve their basketball skills or build confidence, STACK offers the support and environment to help them thrive.
Want to hear directly from those who’ve trained with us? Scroll down to read what past athletes and parents have said about their experience with STACK’s founder, Coach Paul Williams.
Google Reviews
- Annie Freund7/29/2025Absolutely LOVE it here at STACK in Mahwah! My son Logan is only 8 but has advanced soo much since training with Stack and their superb coaches! Very professional, very organized and amazing all around! I highly recommend Stack’s to everyone looking to help their child excel in their sports performance! Coach Atom is phenomenal, and patient with the younger ones all while so so effective in his training. To be honest, the entire staff rocks, especially Joshua who is always so helpful with any questions or needs I have with the program I enrolled my son in. Very happy and well worth the time and investment! Kudos to the new owners Paul and his wife! Very excited for this new season to begin! 😊Read More...read less
- Amanda Richter7/23/2025My seven year old son had a great experience at this summer's STACK Basketball Camp! This all day camp was well organized and structured. The experienced coaching staff helped him learn new skills while having a blast playing with the other kids! Basketball is a newer sport for him, but by attending this camp his interest in the sport has definitely grown. He was a tired little boy at the end of the day, but he can't wait to go back! Highly recommend!!Read More...read less
- Zana Pineiro7/23/2025My 7-year-old son had an amazing time at the all-day basketball camp! He’s done the clinics at STACK in the past and always enjoyed them, but the full-day summer experience really kept him engaged and motivated. The coaches created such a fun, positive environment while still challenging the kids to improve their skills. One thing that really stood out was how the coaches helped him recognize specific areas to improve. He came home talking about how he needed to work on avoiding traveling with the ball but instead of feeling discouraged, he was even more excited, confident, and motivated to practice what he learned. The coaches were incredibly kind, patient, and encouraging, we couldn’t have asked for a better experience. We’ll definitely be back!Read More...read less
- Eric6/01/2025The stack staff are a group of professional coaches who care and are concerned about the learning and understanding of the game of basketball. Coach Atom is very approachable and knowledgeable in every aspect of the game. Coach Josh and Coach Paul will go out of their way to ensure every child has an understanding of the game and that they are comfortable. The entire staff will answer all questions of concern that parents may have. Excellent organization.Read More...read less
- Joe McNamara2/23/2025STACK is a tremendous program. My son has attended STACK for almost two years and he has made considerable growth as a result of the outstanding coaching that he has received during both the skills classes and the AAU program. One of the things that I love most about STACK is the growth mindset that is evident the second you step foot in the building. The coaches, players and their families love basketball and want to get better! Paul (owner/coach) and Josh (manager/coach) are great guys who do a phenomenal job overseeing the program. My son is starting up again next month and he is looking forward to seeing his coaches and the friends that he has made at STACK. If you are looking for a program to help your child improve their basketball skills and confidence on (and off) the court, I highly recommend STACK.Read More...read less
- Easton King11/26/2024Great program but be prepared to work hard. Definitely teaching these kids life skills in addition to basketball!Read More...read less
- S. H.11/11/2024Nice gym and extremely friendly staff. It's a great place for a kids' party. Would definitely recommend it.Read More...read less
- Kevin Meyers11/11/2024My son has had a great experience participating in various clinics, camps, and the AAU team at Stack. The coaches are professional and great with the kids. We've had nothing but positive experiences with Stack and my son is excited to continue his development with them!Read More...read less
- Natasha King9/18/2024I had my son’s 10th Birthday Party here. It was my first time at the facility, so I wasn’t sure what to expect. Our two coaches were amazing and accommodating in every way! We chose basketball and dodgeball and everyone had a blast.Read More...read less
- Camille C Avenius8/22/2024My son loves going here and has had a very positive experience with summer camp!Read More...read less
- Jaime Berrios6/20/2024Great basketball center for our youths. My son loves going there with Coach Atom. Loves the lessons he learns and techniques thoughts.Read More...read less
- M Parhizkaran2/12/2024Excellent place to learn basketball. My daughter improved tremendously!Read More...read less
- Suzanne Drummond9/30/2023We had a great experience during the summer of 2023 at the kindergarten clinic at Stacks. Prior to Stacks, my son had played basketball with a different facility, and I was really dissatisfied because he wasn't taught the fundamentals of the game. Stack is very different, from the sidelines I could see that these coaches were instructing my son the principles he needed to know. The coaches were wonderful; they offered a comfortable environment for learning and were very patient and encouraging. Because the staff created a friendly and accepting environment for everyone, my son never wanted to go at the end of each session. Paul, coach "Q" and the other coaches are excellent and great teachers of the game. My son will be enrolled in the upcoming class. I highly recommend Stacks!!Read More...read less
- Mona Perez7/24/2023We love Stack! We have been coming here for over a year now! Paul, who just took over is very nice, visible every time we go to make sure things are running smooth, speaks to parents to get their feedback in real time! He’s working hard to make it an exceptional place! Love they started a Kindergarten skills class which our younger son loves! Coach Q is awesome as well! Great value for the money!Read More...read less
- Georgia Cabrera7/24/2023Stack Basketball is such a great facility. My boys love going there and getting trained. They have improved tremendously with their basketball skills. The coaches are great with the kids. I highly recommend Stack.Read More...read less
- Dee one7/21/2023My son has been attending Stacks for two years now, he luvs it here. Great atmosphere… Coaches are highly knowledgeable and experienced, they teach the kids skills/drills college and pro level players are doing. Highly recommend you becoming part of the Stacks Family.Read More...read less
- Bruce M5/30/2023Great place to learn the game of basketball. Coaches and staff are great. I had my twins boys play there for years and also referred many to the program. Safe environment for the athletes. Whether it was Ryan running the show and Now Paul who used to be a Pro Player overseas and has been there from the beginning of Stacks conception. You are in good hands. Your child will learn the game. Ask for Paul, he loves what he does and is there to help athletes get to the next level.
Highly recommend!!Read More...read less - Annie Freund3/17/2023Absolutely LOVE it here at STACK in Mahwah! My son Logan is only 8 but has advanced soo much since training with Stack and their superb coaches! Very professional, very organized and amazing all around! I highly recommend Stack’s to everyone looking to help their child excel in their sports performance! Coach Atom is phenomenal, and patient with the younger ones all while so so effective in his training. Coach Q is also outstanding with his skills classes as well! To be honest, the entire staff rocks, especially Joshua who is always so helpful with any questions or needs I have with the program I enrolled my son in.
Very happy and well worth the time and investment! Kudos to the new owners Paul and his wife! Very excited for this new season to begin! ????Read More...read less