About Me

Hi! I’m Mr America Jason Kozma. Yes, for real. I’m LA’s top body transformation expert for over 20 years. I’m not the same thing as other “trainers” like you’ll find at big box gyms, or your friend’s trainer, or any other pretender.

In my profile here is a small sample of my many amazing client before and after transformations.

My background:
I’ve been lifting weights and bodybuilding since the age of 12, and competed in my first bodybuilding contest at the age of 15. I always saw bodybuilding competition as the natural competitive extension of the training in the gym. Ever since I learned that there was such a thing as a personal trainer, that was what I wanted to be.

Upon graduating college, I moved out to Los Angeles to chase my dream. Things happened, it was bumpy and tough but I eventually became very successful as a personal trainer, even adding a team of trainers working under me to handle the overflow of clients that I couldn't train myself.

I even got back into bodybuilding competition from 2003-2007 and won my weight class at the Mr. America in 2004 and Mr. Muscle Beach in 2007, accomplishing some of my long-held goals. My background in bodybuilding competition and my experience as a karate teacher combined well in enabling me to teach and train people from all walks of life in all the aspects necessary to transform their bodies in minimum time with maximum safety. I believe a great trainer has to be a great teacher.

What to Expect

What to expect when you train with me. You can expect radical results in a shorter timeframe than you imagined - my years of experience give you the benefit of all the secrets and tricks I've learned to maximize the results from your personal training sessions, cardio workout and nutritional plan.

As you can imagine my schedule is usually pretty full so in order to keep up with demand I’ve gathered and trained an elite squad of Los Angeles’ best trainers: The High Performance Personal Training Team. You’ll get fantastic results training with one of my trainers (at a lower rate than mine!) - when you book sessions here your credit can be applied to their rates (65-110 per session)

You can always message me for more details.

Check out the before and after pictures and testimonials in my profile.

Client Success Story

Jason is the real deal ... it's no joke that he can truly transform your body and make the most of what you've got. The first time I worked with him, he whipped me into amazing shape in eight weeks! He works with you to develop a workout and nutritional plan and makes sure you stick with it! There is no cheating with him because for some strange reason, he'll know if you have. He's a great motivational fitness trainer, and if you want hardcore results, Jason's your man. I'd recommend him for anyone serious about body transformation. -- Marites


  • Athletic Performance
  • Baseball
  • Basketball
  • Bodybuilding
  • Bodyweight Training
  • Calisthenics
  • Circuit Training
  • Core
  • Football
  • High Intensity
  • Personal Training
  • Plyometric
  • Post-Natal Fitness
  • Powerlifting
  • Pre-Natal Fitness
  • Resistance
  • Senior Fitness
  • Strength And Conditioning
  • Stretching
  • Suspension Training
  • TRX

I Can Help You Accomplish

  • Weight Loss
  • Weight Gain
  • Firming And Toning
  • Flexibility
  • Increase Muscle Strength
  • Aerobic Fitness
  • Endurance Training
  • Body Building
  • Nutrition
  • Pre/Post Natal

Training Locations = Travel Radius = Preferred Training Location

= Travel Radius = Preferred Court
  • Burn Fitness
  • 1233 3rd Street
  • Santa Monica, CA 90401
  • El Segundo Athletic Club (Team
  • 505 Main St
  • El Segundo, CA 90245
  • Built Gym (Team Trainer)
  • 4005 Highland Ave
  • Manhattan Beach, CA 90266
  • Bishoy's Gym (Team Trainer)
  • 11555 W Olympic Blvd
  • Los Angeles, CA 90064
  • Hollywood Gym (Team Trainer)
  • 1551 N La Brea Ave
  • Los Angeles, CA 90028
  • The Gym La (Team Trainer)
  • 11567 Santa Monica Blvd
  • Los Angeles, CA 90025
  • Gold's Gym Venice (Team
  • 360 Hampton Dr
  • Venice, CA 90291
  • Woodland Hills Athletic Club
  • 20971 Burbank Blvd
  • Woodland Hills, CA 91367
  • Gold's Gym North Hollywood
  • 6233 Laurel Canyon Blvd
  • North Hollywood, CA 91606
  • Muscle Mechanics (Team
  • 8471 Beverly Blvd #202
  • Los Angeles, CA 90048

  I can travel within 20 miles of zip code 90403

General Availability

Sunday Inquire about availability
Monday 10am - 12pm and 7pm - 9pm
Tuesday 11am - 12pm and 7pm - 8pm
Wednesday 9am - 10am
Thursday 11am - 12pm and 7pm - 9pm
Friday 9am - 10am and 11am - 12pm
Saturday Inquire about availability

Jason's Pictures & Videos

Your first session is backed by our Good Fit Guarantee

Client Feedback

Daisy S.

To say that Jason is an incredible personal trainer is an understatement. He takes you through your personal journey of what you want to achieve and helps you do it. Not tomorrow, not next week, but today. He personalizes each workout to fit you and gives you a nutrition plan that fits you as well. If you want results, go to Jason. You won’t be disappointed.

December 7, 2018 • Verified

Jason is a top expert and highly respected in the fitness industry. Jason Kozma is not just a body transformation expert and the best personal trainer in Los Angeles, he is a miracle worker.

Jason, When I first came to you, I was unhealthy: smoking, not eating properly, etc. didn't know how to work out correctly. You inspired me through my training to change a lot of things in my life for the better: i.e. quit smoking with-in the first week with you (a 20 year habit) and did not smoke at all after that, start eating right, making better choices overall. You know what I mean. How important you were in my life how your techniques motivated me, basically, through your expertise & vast knowledge how you taught me to truly change my life. I’m so happy because of that.

You truly know how much you changed my life. I never imagined I could transform my body, my health and my self-image.

Thank you so much Jason for all your expert help!

P.S.: I should point out that when I met you I was trying unsuccessfully to lose weight on a 1000 calorie a day diet. While training with you for my first NPC bikini contest we had me losing fat while eating 2641 calories a day at 5 weeks out! We had gone from 22% body fat at the beginning to 13% at that point, to 10% on show day. Amazing!

December 1, 2018 • Verified
Jeff D.

I trained with Jason for over 3 years. During those years I have never felt or looked better. As I have gotten older, the importance of living a healthy lifestyle has dramatically increased. The demands of work make the process even more difficult. However, Jason manages to find a program that works with anyone's schedule no matter how demanding. Besides organizing the very best workouts for me, he also organized a diet plan and followed up diligently to make adjustments to ensure I met my goals. Anyone who is serious about being healthy, feeling good and looking great should call Jason. My only regret today is that I have moved to China for work and I can not convince Jason to follow suit to continue training me.

December 1, 2018 • Verified
Patricia B.

It is a hard thing to find a personal trainer who is both knowledgeable and professional when it comes to women. Especially women in my category - over 50. What a difference I can see in my body! He has also given me some tips on how to improve the inner workings of my body. I have found a rare find in Jason.

December 1, 2018 • Verified
Faruque S.

Jason is the best personal trainer out there. His knowledge of the body, his adherence to proper form and technique and his strong emphasis on diet combine to help you get noticeable results quickly. Whether you want to gain muscle size, increase definition or drop the pounds, Jason is the trainer you want. He's not the kind of trainer that stands there, counts out 10 reps and then tells you you've done a good job.
He will push you hard, motivate you and get you to levels of fitness you never thought possible. And after all, isn't that what you want?

December 1, 2018 • Verified
Ro S.

Jason and his team are amazing. I got in shape fast and felt healthier in a very short time. The plan was laid out, all I had to do was show up, worth every penny! Thanks guys :)

December 1, 2018 • Verified
Sonia M.

I read that Jason was one of the best trainers out there and definitely he is. He gave me an appropriate nutritional menu plan and it works. He motivates me to push past my perceived limits to get a result. Every workout is intense but every workout is also different. He utilized free weights as well as weighted machines to build my strengths. I have incredible energy, my balance and flexibility have improved immensely. His goal is clearly to get his clients as healthy and fit as possible. I highly recommend him!!!

November 19, 2018 • Verified
Edgar D.

Jason has proven to be dedicated to the success of his clients through his very specific nutrition plans, and training programs. I have seen my own body transformation, significant decrease in body fat %, and muscle gains! I highly recommend him to anyone looking for serious results. Discipline and hard work required!

November 13, 2018 • Verified
Jay E.

There's a reason why Jason Kozma is consistently ranked as one of the top personal trainers in Southern California. He gets results in a meaningful, sustainable way. I started training with him when I noticed my 6-pack abs were looking more like a beer keg and I kept having to buy larger sized clothes. It was difficult for me to look at myself in the mirror and feel confident. I wanted to change my lifestyle and kick up my workouts. Jason more than delivered. Of course, I had to make the effort, but it was so worth it. I feel great, my clothes fit and I can see my abs again. Thanks, Jason! You ROCK!

September 29, 2018 • Verified
Gale M.

When I was 53, I won the Venice Beach body building contest master's division because of Jason. I am a nurse by profession, not some disciplined, driven athlete.
His heartfelt encouragement gave me the courage and his training techniques, that were quite frankly not that difficult, gave me THE body! If you do what he says, you will get what you want - plus! Jason really cares about results for you, not so common in the training world I have found.
Don't put it off, it is never too late to win the body battle, and with Jason's help it will happen sooner than you think!

October 5, 2018 • Verified
$200 /hour

No upfront payment, pay-as-you-train

No Risk - Cancel or switch trainers anytime

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