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  • *Under 18 must be accompanied by parent or legal guardian.

  • *Under 18 must be accompanied by parent or legal guardian.


435 Valley Brook Ave.
Lyndhurst, New Jersey 07071


  • I really like how the workouts change all the time. I never know what to expect which is great. Also the support is so helpful. Everyone is so positive and encouraging. They really help me stay motivated and focused towards my goals.
    - June 12, 2018 by M.T.
  • 9 round in Lyndhurst NJ is absolutely the best. I feel great and have lost 11 lbs in 1 month.
    - June 05, 2018 by D.W.
  • The staff is excellent 5 stars! Alex and his staff are with you thru the entire workout. Truthfully a fun 30 minute workout
    - June 05, 2018 by Janet Beglin
  • I get a hard core workout in a short amount of time
    - May 23, 2018 by Niccole Caccavella
  • I travel all over the country for work and I visit all the 9Rounds that I can. All the owners and the trainers make me feel welcome.
    - May 19, 2018 by Matthew Migneault
  • Love It!! It's quick it's a great workout and Alex and his staff are very friendly encouraging and can impart their knowledge on to you to help you achieve your goals!!!
    - April 18, 2018 by Michele ONeill
  • I love my 9round location, trainer, and the community there. I enjoy the different workouts and have felt overall healthier during the past six months of working out here :)
    - April 15, 2018 by G.D.
  • I'm treated like a good friend, the workouts are different everyday, and they are actually fun!
    - April 14, 2018 by A.M.
  • Totally in love with 9round. Everyday is a different workout, no schedule required, you just show up and hop in. It makes it super convenient and you have no excuse to miss a work out day. Trainers are fun and helpful. Alex is a great guy. Just go to 9round and see it for yourself
    - April 13, 2018 by Lynna Sales Silva
  • Alex and the staff makes this gym absolutely phenomenal, very friendly and very professional... they motivate me to keep going and to keep fighting through the pain ... 9 rounds has become the place where I go to release some stress and have fun.
    - April 12, 2018 by C.G.
  • The owner.. Alex. He is very honest, trust worthy and a very good trainer.
    - April 12, 2018 by Sagar Ganatra
  • What I like the most is the friendly atmosphere, once you walk in you are greeted by staff and they know your name!
    - April 12, 2018 by Daniel Batista

About the team

  • 9Round trainer
    Alex "All-In" O.
    Alex is the Owner and Head Trainer at 9Round-Lyndhurst. Alex is a Certified 9Round Kickboxing Trainer, an ACE Certified Personal Trainer, and has trained in Muay Thai kickboxing since 1999 under the instruction of world renowned trainers Kru Nestor Marte, Master K., Kaensak, and Kru Richard Raciti. Alex has also trained with professional MMA fighters such as Mauricio Shogun Rua, and Murilo Ninja Rua. Fitness has always been an important part of Alex's life, having played multiple sports in school such as Football, Wrestling, Track & Field, and Basketball. Alex graduated college in 1999 with a Bachelor's of Fine Arts, and went on to work professionally as an Art Director for the past 18 years. Previous to 9Round, Alex was working at Audible.com, an Amazon company based in Newark, NJ as a Senior Design Manager.
  • 9Round trainer
    Yolanda "The Boxing Prosecutor" G.
    Yolanda AKA "The Boxing Prosecutor". At one time, not too long ago a lawyer by day and boxer by night. Yolanda’s boxing background included participating as an amateur, and was the New Jersey 1999 Golden Gloves Champion, and the Diamond Gloves Champion of 2000. In addition, she received the honor of “The Fighter of the Night” in her very first amateur bout and turned pro that same year. Yolanda had thirteen pro fights that same year and ended her pro career with a record of 7-6 with 3 KO's. Physical fitness is a passion of hers and wishes to share that knowledge to help others gain the physical fitness they desire.
  • 9Round trainer
    Elmer "E-Rex" F.
    The fitness journey never ends. It is always ongoing and ever-changing." Grappler, competitor, and fitness enthusiast. Elmer AKA "E-REX" was born on August 18, 1996 in the township of Orange, NJ. He is currently in pursuit of an associates degree in Wellness & Exercise Science at the local Bergen Community College. Formally a couch potato, Elmer became inspired to change his life after breaking his left ankle in the year 2012. Proceeding to lose 30 pounds that same year via boxing and wrestling, Elmer learned that anything is possible if you simply work hard and put your mind to it. Now he seeks to inspire and assist others in pursuit of a healthier lifestyle.
  • 9Round trainer
    Brianna "BeastMode" V.
    Brianna aka "Beastmode" was born in Pennsylvania, and has lived in New Jersey for the past 15 years. She has always been into fitness having been a cheerleader and a gymnast throughout her life. That affinity for fitness led her to work at a CKO and subsequently got her into kickboxing. Aside from being a 9Round trainer, Brianna is studying to be a Nurse. She enjoys fitness and makes it part of her everyday routine. Her goal as a trainer is to give members an exciting and fulfilling workout each time they come in for a workout!
  • 9Round trainer
    Joe "Capt. 'Murica" C.
    Joe "Cap't Murica" C. is one of 9Round-Lyndhurst's newest trainers. His dedication enabled him to go from a 9Round member (who lost nearly 20 lbs in 6 weeks) to one of our newest trainers. Previous to 9Round, Joe was a proud member of the United States Marine Corp's Artillery Unit for nearly 5 years. Currently, Joe also works as a teaching assistant for special needs children. Joe has a passion for fitness and is also working towards getting his Personal Training Certification.
  • 9Round trainer
    Ana "The Ana-mal" N.
    Ana "The Ana-mal" has been a Lyndhurst native for the past 8 years. Fitness always been part of her life having been involved in Brazilian Jiu-Jitsu, Soccer, Basketball, Volleyball, Cheerleading and Cross Country. Aside from being a 9Round Trainer, Ana is studying to become an elementary school teacher. Her ultimate goal as a trainer is to help people achieve their fitness goals.