I will become stronger than my strongest excuse
ATTENTION 'NEW YORK UNDERGROUND FITNESS FAMILY! UNFORTUNATELY due to complications involving the building that houses NYUF, we will not be able to reopen September 2nd, 'Day 1 of the lifted shutdown'. Please know that every effort is being explored and exhausted towards moving this situation aggressively forward in a positive way! THANKS VERY MUCH FOR YOUR CONTINUED SUPPORT AND PATIENCE! Stay tuned, stay safe, stay well! - Eric Slayton


Monday 6AM - 10PM Tuesday 6AM - 10PM Wednesday 6AM - 10PM Thursday 6AM - 10PM Friday 6AM - 9PM Saturday 8AM - 6PM Sunday 8AM - 6PM
You are entirely up to you
The dream is free - the hustle is sold separately

focused & friendly

Most gyms fall into two categories: A so called 'hardcore' gym where an intimidating attitude makes some people feel unwelcome - or a so called 'social' gym that, although extremely friendly, can lend itself 'not ideal' for an intense workout.

Welcome to New York Underground Fitness where you don't have to compromise friendliness for intensity... FOCUSED AND FRIENDLY is the law of the land. Here you'll feel and experience a healthy/efficient fusion of both these worlds!

With over 20 years of experience in the health and fitness industry, both as PERSONAL TRAINER, and CLUB MANAGEMENT, owner Eric Slayton utilizes his knowledge, and sensitivity of what both trainers, and members want/need in order to have a successful gym experience.

As featured in the New York Times in 2009, Eric Slayton doesn't just talk the talk, he walks the walk. During the recession in 2009, he utilized his position as owner of New York Underground Fitness to offer 'FREE' memberships to anyone adversely affected by this economic downfall. Said Eric at the time "Stress management becomes 'extra crucial' during extenuating circumstances: As a Gym Owner, I’m in a position where I can at least help put people in their best possible position to succeed."

Results start here!


Membership Fees

1 Month $70
1 Year $600


Half off ANNUAL memberships for NEW MEMBERS!

Corporate/Residential Rates

1 Month $50
1 Year $500
*CBS Employees, Mt. Sinai Hospital Employees, BMW Employees, Teachers & Students, Hanover House, the Colonnade, Parc Vendome Residents, Addison Hall Residents & South Park Residents, Bloomberg LP
Dear NYUF member, your membership has been frozen at this time with no further action required on your part. We very much look forward to seeing you when we reopen!! #patience #fortitude @NYUNDERGROUND
Inhale confidence exhale doubt


My mind, body and spirit are strong. I take time each day to rejuvenate and recharge. I draw from the deep well of peace and calm. I breathe in strength and release my fears. I go after my heart's deep desires. I can accomplish anything. I focus on my goal and have the strength to make it happen.

I choose to be unstoppable. I am strong. I act in spite of my fears. I am bigger than my concerns and worries. I can do anything I put my mind to. Each day I am getting stronger. I can take care of myself. The strength of others inspires me daily. I trust my intuition and live a courageous life.

Everything yields to diligence
Whatever your 100% looks like, give it


The longer I live, the more I realize the impact of attitude on life. Attitude, to me, is more important than facts. It is more important than the past, the education, the money, than circumstances, than failure, than successes, than what other people think or say or do. It is more important than appearance, giftedness or skill. It will make or break a company... a church... a home. The remarkable thing is we have a choice everyday regarding the attitude we will embrace for that day. We cannot change our past... we cannot change the fact that people will act in a certain way. We cannot change the inevitable. The only thing we can do is play on the one string we have, and that is our attitude. I am convinced that life is 10% what happens to me and 90% of how I react to it. And so it is with you... we are in charge of our attitudes.
Shirts available at New York Underground Fitness, by phone, and/or e-mail.


We are a full service neighborhood gym, specializing in high end personal training.

Designed with serious training in mind

Private and semi private boxing and kick boxing

Customized fitness and nutrition programs

Pre- and post-workout nutrition
Every wall is a door
440 West 57th Street, New York City, NY 10019 eric@nyundergroundfitness.com (212) 957-4781 Inside the Watson Hotel