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Die-Hard Following.
Sold Out Classes.
Like Clockwork.

It’s hard to thrive in the fitness industry. We teach you what it takes to easily attract your dream clients and make them want to stay forever.


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Making a good living in the fitness industry shouldn’t be so hard.

• It shouldn't be so difficult and frustrating to get the right people to realize the greatness of what you offer, inspire them to come to your classes, and keep them coming back for more. 

• It's exhausting when none of your marketing efforts lead to the number of new clients you were hoping for, and you have no idea why your retention keeps tanking. 

• It can cause you to wonder if it's worth it to keep trying.

Don’t let yourself burn out before you figure it out. It’s time to leave these stressful feelings behind.

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of small boutique fitness studios fail within the first year of being in business.

It’s not magic. But it feels that way.

Create unforgettable group fitness experiences that attract your people and keep them coming back for more.

Fitness Career Mastery Ultimate Class Experience student feeling confident and empowered while teaching a class as a fitness instructor.

Consistently attract your dream clients.

It shouldn’t be so hard to get people to see the value of what you offer, but the truth is that most fitness businesses go about marketing themselves the wrong way.


We teach you how to position yourself as the perfect solution they’ve been looking for so you can start focusing on the sweat-related things you LOVE to do.

Sell out your classes.

There’s an art and research-backed science to teaching a group fitness class that's an unforgettable experience, and it's exponentially more than throwing on some beats that slap with some exercises in a super sleek space.


We teach the secrets that you’ll never learn from a certification about what it takes to create unforgettable, immersive experiences that make people STILL sign up for class despite the long waitlist, & ditch their obligations so they can come to class.

Barry and Shay Kostabi, founders of Fitness Career Mastery who teach you how to create a brand for your fitness business that is a reflection of your core values and beliefs, and epic class and workout experiences that deliver on your brand promise.

Make fitness your full-time career & change lives.

Once you trigger a new client avalanche and turn them into obsessed groupies, you can finally peace out from your 9-5, and live happily doing the thing that brings you and others joy.

Instructors at a cycling studio in Los Angeles going through Ultimate Class Experience training with Shay Kostabi and learning about how to harnass the power of flow states to create unforgettable class experiences for their clients.

Fitness CAN and SHOULD be exponentially more than throwing on some music and putting some exercises together in a super sleek space.

Shay and Barry of Fitness Career Mastery sitting in an art gallery hallway

Remember that moment when it hit you like a ton of bricks?


The realization that you were tired of working for someone else and that fitness was your true passion. You took the leap and became a fitness professional or started your own business.

But now you've come to realize that having a deep understanding and passion for fitness is different from consistently selling out your classes. The unpredictable income, unreliable bookings, and constant stress can be overwhelming. We've been there too, and we know how frustrating it can be when all you want to do is change people's lives.

That's where we come in. With decades of experience coaching and consulting for group fitness studios and instructors worldwide, we've cracked the code on how to get more people in and keep them coming back, all while making a meaningful impact and earning a good living.

Spoiler alert: it's about going beyond just the workout and transforming bodies.


We'll guide you step by step in positioning yourself around your unique value and crafting fun, immersive, and addictive experiences that deliver on your promise. These two sides of the same coin must be mastered to increase your income, build a thriving fitness business, and change lives with sold-out classes.


Your journey to Fitness Career Mastery begins here.


Your business’s success demands you nail the two elements of an unforgettable experience:

1/ Attract YOUR people.

2/ Take their breath away.

First, Attract YOUR People.

Attracting the right people comes down to ensuring you are properly positioning your value to your dream clients. If you're struggling to get new clients, this is most likely the reason why.


Doing this well goes beyond informing them of what kind of workout you offer and your schedule. Why should your dream client come to YOUR studio? How is coming to your classes going to improve how they experience their life?

Marketing WHAT you do does nothing to answer these questions and distinguish you from everyone else that does what you do.


You have a unique perspective. An outlook on life that is yours alone because it has been shaped by your experiences and taste, and is reflected in the experience you provide.

Our job is to draw it out of you and use it as the bedrock to communicate the mountain of value that you provide- so you begin to attract more clients in.

We help you authentically express your unique value to your dream clients, so you can attract the people you're meant to serve, and stand out from competition.

Barry Kostabi, co-founder of Fitness Career Mastery, teaching a yoga class in Shanghai, China and implementing Fitness Career Mastery's teaching techniques to create immersive workout experiences that get clients into a state of flow by perfecting coaching and cueing, his use of music, his instructor persona, and knowledge of flow state neuroscience.
Shay Kostabi, co-founder of Fitness Career Mastery, teaching a fitness class in Los Angeles, California to a group of students completely immersed in the workout because she has created an effective instructor persona, has mastered her use of music, the art of coaching and cueing, and the science of flow states.

Second, Take Their Breath Away.

The keys to packed classes, member retention outstanding client referrals, and five-star reviews can be found in the quality of the experience you provide for your clients. 


Over decades of training more than 1000 instructors in over 13 countries in multiple languages, we’ve discovered what it is that the most influential instructors in the world do, and have distilled this down into a science-backed formula that YOU can use to create unforgettable, immersive, and addicting workout experiences for your clients - no matter where or what you teach.

We teach you the skills you need to know in order to transform your workouts into meaningful experiences your clients can't live without.


Case Study: 15 West Fitness

Raised Prices 40%

50% More Revenue

on average each month after just 4 months


Shaun knew he was getting amazing results for his clients. They would come in crippled and hurt and walk out with a strong, functional body. The problem was he didn’t know how to express or communicate the value he provided to these people’s lives and therefore had a hard time justifying higher prices. After working with FCM he finally gained the confidence to raise his prices and is now at capacity. Learning how to differentiate his training method and put concrete messaging around the value his clients received made all the difference in the success and growth of his business.

Fully Booked Fitness Class with Elastic Bands for a Fitness Career Mastery Client in New York City



New York

"I just taught the most incredible class. You could feel it. I know that without all your knowledge and training it wouldn't have happened."


New York

"I can finally just completely focus on what it is I'm doing, and who it is I'm truly serving. It's a clear path for me."



"Before working with FCM I had always struggled with imposter syndrome. After just a few sessions I started feeling clear and confident."

Nothing feels better than consistently sold out classes.

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