(212) 677-3167
34 E 23rd St
New York,
NY
10010
40.7408
-73.9878
Neighborhoods: Midtown, Flatiron District
Reviews & Ratings for Undisputed
35 reviews
What users are saying:
Fun classes, hard sweat, quality instruction.
by neilmart at Citysearch
After training at Undisputed for close to a year I have to really question some of the general intent of the negative reviews below. Charlie Cassis owns, manages & teaches 99% of all sessions at his gym. There are no full time assistants or secretaries to answer the phone or to tend to ministerial duties. Charlie does it all and has a full workload and many loyal students. Don't take it personally if his response to your inquiry takes longer than you would like or if he is hesitant to add another student to the flock.
I have done both private lessons and group instruction. Never have I been talked down to. Have I been told that my technique was wrong or that I was weak in certain areas? Yes! Such is proper instruction. If anything, Charlie is overly supportive. Classmates are supportive and friendly as well, though not much talking is done during the 2 hour group sessions which I would label as technique-based cardio.
All in all, I truly enjoy working out there. I love Charlie's "no pretend time" admonitions, the bamboo painted walls and even the "nightclub" music as another reviewer labeled it. (People working out with up-tempo music?!? Heresy!) The place is clean. Coupled with minor diet changes I've lost 30 lbs. Charlie is the real deal but most importantly, I feel great when I leave his gym.
- Pros: Quality instruction, clean gym, no bullies.
- Cons: Closed saturdays
Great Kickboxing Gym
by Michaelbrian at Citysearch
HIGH ENERGY!!
After searching for a few months for a good gym to train in, i was impressed with an straight impact of high energy the moment I walked into Undisputed gym. While the highly accredited training assistant was being referree to two martial artists in full fighting and combative gear in the ring, Charlie The Cream Cassis was offering world champion instructional to other martial artists training on the heavy bags. From the energy I observed I knew I would have to step my game up and respond with the same energy. This proved to be easier than thought thanks to all the support and encouragement from the trainers and other students in the class. It soon became clear that high energy, support, and encouragement were not the only things Undisputed gym offered...but detailed instructional in the fundamentals and advanced art of kickboxing.
Being that this is the highlight of my day after a long day at school and working part time at a lawfirm, made it quite easy for me to make the transformation from just a fan of kickboxing to somebody actively training in the actual sport and art. I have been training for a great 4 months and am training for my own debut in a ring. For a person who could not kick higher than a shoebox to now being able to kick open a locked door, I look forward to my training session and family at Undisputed gym everyday.
Great for beginners to professionals to people just looking for a great workout, Unidisputed gym is armed with a great supportive and encouraging environment, detailed fundamental and martial arts training, and extreme high energy.
- Pros: Championship Instruction
best championship quality training around from the champ himself!!!!
by DaChampisHere at Citysearch
From the first day i walked into undisputed i knew it was different from any other kickboxing gym i had ever seen. I had spent at least 6 months searching the city for the best training, and after a few tries i found Charlie The Cream Cassis. Charlie's training methods are second to none, If you want to train like a professional fighter this is definatley the place to be. Under Charlies training i won 2 KickBoxing titles, while keeping my undefeated record intact, and this is ony the begining. I have been to many, many gyms not just in new york but in the whole USA and i have to say that undisputed is for sure one of the best. The quality of the instruction is top notch, not even second to top gym like american top team. Its also not just about the training, we are a private gym so its a family like atmosphere, very close knit and every one is willing to help each other out. The facilities are the best in new york city, there is no gym that looks as good and is as functional and CLEAN as Undisputed, if you dont agree you probably have never seen what a real boxing gym looks like. Overall This is the best kickboxing training i have recived anywhere, In my last fight i won over a current champion who had 40 fights more experience then me and i beat him in a more then convincing fashion, all because of charlie strategy during the fight. He is a super experienced fighter with knockout power in the Hands and the Feet, with an aggressive and really exciting fighting style, watching him fight i what made me want to get into it even more.
If you want to learn kickboxing this is the place to be PERIOD!!!!!!
- Pros: championship intruction
- Cons: closed saturdays
Speaks for itself
by sbrdash at Citysearch
I agree with the negative feedback on this board and am not sure which gym the others are going to. I wanted to try a class with a friend, and this cream guy confronts me and acts like he's doing me a favor by letting me in the class. He also made me pay $25 for a trial, which is ridiculous. The class worked up a sweat, but that's about it. Afterwards, one of his high-paying customers came in, so he told me to wait to discuss membership. After he ignored me for 20 minutes, I couldn't wait anymore and left. I guess he just expected me to sit in the corner for an hour. I have no desire to go back to train with this clown. If you want "Sweating to the Oldies" with Richard Simmons or "Boot Camp" with Billy Blanks, save yourself some money and just buy the DVD.
mediocre gym
by bk5001 at Citysearch
I have 8 years of competition experience in wrestling, Judo and boxing and having moved frequently, have trained at many gyms. I don't make any claims on my own ability, but nearly every one of the true professional fighters I've trained with has been modest and secure in their achievements. Charlie is not one of these fighters. The "Cream" struck me as more of a showman than a fighter or a coach. He came across as condescending, repeatedly bragged about "already having made enough money," and his pitch was evocative of a used car salesman. He struck me as a generally competent instructor, and I think his program is great for beginners or experienced fighters who are just interested in fitness. His program looked to be mostly stand-up based and he seems proficient in this, but his attitude was a big turn-off for me. I wouldn't recommend this gym to any serious martial artists who want to train in an environment without an ego.
- Cons: instructor attitude, sales pitch
He's f...en awesome...
by feisters at Citysearch
Are you out of your mind! I've seen Charlie take mother f...ers out in seconds. His hands have nothing to do with it. His legs are what you have to worry about. The guy is a f...en excellent fighter and trainer. He probably looked at your dumb but and thought it useless to waste his time. Putz!
UNDISPUTED Nightclub
by cakhbw at Citysearch
I have known Charlie for many years. I have been to some of his fights and I?m not quite sure where to begin. He can?t fight if his life depended on it! His friends always fought his battles for him. He is a fraud! Let?s take a good look at his website, first we see ?4 time champion? then we see ?3 time champion?. Well Charlie which one is it, 3 or 4? He always has an excuse, a story. To be quite honest I?m not even sure if he himself knows the truth anymore. The gym?when have you ever seen a gym with graffiti, bamboo, music blasting? Is this a gym or a night club? He stares at every female like she is a piece of meat, he belittles the males so he can feel like the bigger man. Rumor has it that he is far from the "BIGGER" man. He is all over the place; he is unable to focus long enough to actually teach something completely. He brushes people off if he doesn?t have an answer. He is always complaining about something hurting. Seriously what kind of teacher is he? The best is getting a hold of someone when you first try to inquire about the gym to sign up. It takes days before you hear back from someone, you can?t get any straight answers, and you can?t view the place or the training unless you pay a fee. When have you ever heard of such BS? I have known a lot of fighters/trainers throughout the years and I noticed something, their hands/knuckles. Have you ever looked at Charlie?s? They resemble an office worker then a fighter of any kind. I?m sorry but this place is a joke. The trainer is a joke.
Sketchy Sketchy Sketchy
by QQJJ at Citysearch
I've worked out at a few gyms around the country, and I've checked out a lot of other gyms, kwoons, and dojos; and Undisputed gave me the strangest experience yet. First, it's easier to get my doctor on the phone than it is one of these guys. Every time you call you have to leave a message with an answering service. Then, whenever it's convenient for them, when you're on your way to work at 8:30 in the morning or when you're in the middle of lunch, they give you a call back from a different phone line. Second red flag: they don't let you observe a class before you try one. I should've said no to them after I heard that. What person in his right mind would pay for a product without seeing it first? And with martial arts, watching a class beforehand saves everybody time if it's not the right fit. Instead, I wasted my time and actually agreed to pay $25 for a trial class. Funny thing is, when I showed up for class, nobody answered the freakin' door. I was there fifteen minutes before the class, which is what you need if you're going to change clothes and stretch out, and nobody answered the freakin' door. I called, left another message with their answering service, waited ten minutes, watching absolutely NO ONE ELSE try to get into the building, and then I left. Next day, the gym calls me like they didn't get my message, treats me like I didn't show up for a class I signed up for, and then doesn't apologize when I tell them that I showed up and no one answered the door. The guy on the phone tells me that they don't let people into classes prior to ten minutes before class starts, treats me like it's my fault nobody answered the door - not even to say into the intercom, "Come back later." Well, I guess I won't come back later. It's not like they shouldn't have expected me for the time I made an appointment for. If they can't even be professional enough to answer the door, how professional can they be at coaching?
- Pros: I didn't waste my money.
- Cons: Not even professional enough to open the door.
Looking to sculpt your body or just sweat off a few lbs...
by bl33mz at Citysearch
Undisputed gym is simply put the premiere workout experience. Upon walking in your immediatly greated by the sight of an authentic bamboo trimmed dojo, full size boxing ring, walls of accreditations and championship belts that signify a lifetime of sweat, hardwork and fitnees from 3 time champion Charlie Cassis. Constantly trying to keep his students challenged and the atmosphere fresh, Sensie Charlie cuts no corners and expects the same when bringing his years of fight experience. Coupled with state of the art equipment, students are treated to cardio kickboxing sessions, boxing, brazilian jui-jitsu and full contact sparring (for the more advanced ranks. But dont be deterred beginners because Undisputed caters to all levels, body types, and ages. Personal training and tailored workouts are also available 7 days a week.
- Pros: great workout, freindly place - no pressure
- Cons: besides working up a sweat only comparible to a sauna...NONE
" THIS IS THE REAL CARDIO"
by jaguar8tb at Citysearch
I worked in law enforcement for 20 years, I am 46 years old and have been working out my whole life. I thought I was doing a great routine until I started training with Charlie Cassis. Charlies training in mixed martial arts is by far superior to any workout I have done in my life! If you want to get in great shape and feel more confident this is the place you want to train. I have trained in many gyms this is without a doubt the best value for your dollar!
- Pros: Champion instructor, Variety of techniques, Great facility
- Cons: None









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