Jay Maryniak copy

Make a change with fitness

My programs will help you become the most well-rounded athlete possible while keeping things fun and interesting.

Start today for only $1
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Create lasting transformations physically & mentally

  • What's inside

    Programs designed for you

    I am here to inspire you to become the best version of yourself. Beyond having a structured workout plan in place, the key to getting results is putting in consistent hard work. It’s not easy. Nothing worthwhile will ever be. Just stick to the programs and workouts as best as you possibly can and know that you will not do it perfectly. We just have to do the best we can each day.

    Start today for only $1
  • Coaching & community

    What's inside

    Coaching & community

    • Ask me questions directly

    • Share your success with me

    • Tell me what content you want to see

    Start today for only $1
  • Bonus features to help you succeed

    What's inside

    Bonus features to help you succeed

    Access my nutrition guide, learn the importance of supplements, and listen to curated playlists while you train!

    Start today for only $1
  • The Functional Core device
  • Bodyweight Workouts device
  • Dumbbell Workouts device
  • Kettlebell Workouts device
  • The Functional Core background
  • Bodyweight Workouts background
  • Dumbbell Workouts background
  • Kettlebell Workouts background
  • Exclusive programs

    The Functional Core

    • Take your functional core strength to the NEXT LEVEL

    • Build strength & stability in all planes of motion

    • Improve your athleticism, performance, overall functionality & reduce the risk of injury

  • Exclusive programs

    Bodyweight Workouts

    • Full body workouts that require no equipment, just your body

    • Train your upper body, lower body & core

    • All fitness levels welcome

  • Exclusive programs

    Dumbbell Workouts

    • Grab a pair of dumbbells & see serious gains

    • Strengthen your muscles to achieve the aesthetic body goals you are after

    • Complete anywhere, anytime with minimal equipment

  • Exclusive programs

    Kettlebell Workouts

    • All you need is some kettlebells & motivation

    • Train different muscle groups as the program goes on

    • Make real gains & lasting results

Come join the community!

  • The Functional Shred is an amazing program that is equal parts fun and challenging. It will definitely take your fitness to the next level no matter where you're starting from ... I really appreciated Jay's thoughtful warmup and cool down sequences that bookend the workouts with intention and mindful movements to promote longevity for athletes like myself who push the limits of what their body can handle. Thanks for kicking my butt Jay! Can't wait to start the next program!

  • This is by far the most fun program I've ever done! I had just finished a bulk before starting The Functional Shred and I was struggling to lose the last few pounds. The Functional Shred was not only fun to do but I've gained strength, improved mobility, and gained core strength! I had a C section 4 years ago and my abs have been the most difficult thing for me to improve due to the lack of strength after the surgery...my abs are stronger now and I FINALLY have a 6 pack! Very happy with my results!

  • 10 months ago I started training with Jay's programs. I have followed The Functional Mass and Power program twice. Besides that I have been following The Bodyweight Beast program as well. This is my 1 year progress/transformation. Jay's programs combined with a diet (6 days a week) and not drinking alcohol anymore has truly been a life changer for me. I haven't felt this good in a long time both mentally and physically.

  • Hi, JT! Just wanted to say THANK YOU. I'm almost done with Functional Mass and Power and I couldn't be happier with the results! I thought it would only help me recover after the lockdown muscle loss, but I had no idea it would get me in the best shape ever! Question now is...which program should I do next?!

  • Wanted to share my 1 year progression with TFS and some of your bodyweight workout from you instagram. So, from 103 kg to 88 kg with great training and discipline regarding food I managed to improve my overall resistance, body strength, and of course the physical appearance changed also. Just grabbed two of your bodyweight programs and can’t wait to try them! Love what you’re doing. You’re a great inspiration, please never stop, you are great!

  • Hi Jay, Had a moment of self appreciation and wanted to share with you. August 2020 had foot surgery (right) then November 2020 (left)…. Had a set back and gained some weight…20lbs to be exact. Since January 2021 , I have been doing your programs, functional Shred (twice), functional mass and power, functional method 2, and functional method 3 (currently on).…….also have lost all the extra weight i had gained last year. Did not realize i made this much progress visually too. Just wanted to share.

  • In the beginning of the year I got COVID.I couldn't workout for a few weeks and got into some bad eating habits. I needed a reset, so I got the JTMFIT Kettlebell Shred. I have loved the program!, I have leaned out, increased muscle endurance, improved my kettlebell technique, and I have a stronger core. Thanks for another great program, Jay!


I'm Jay, and this is my story

I excelled in sports as a young kid but also found drugs and alcohol, eventually, leading me down a bad path. I ended up hitting rock bottom at 20 years old and getting sober in 2005. I knew I needed to find things to keep my mind occupied, so I found Muay Thai kickboxing and Gracie Ju-Jitsu, which I loved.

Back in 2013, I got pretty sick and ended up in the hospital. I was diagnosed with type 1 diabetes and my whole life changed. Living life as a type 1 diabetic can be very challenging day-to-day. Then, you add in being really active like myself and it gets even more challenging, but I refuse to let it hold me down.

Since I started training clients one on one over 13 years ago and started my online programs in 2017, I have helped thousands of people all over the world just like you make lasting transformations physically and mentally. I’m excited to be a part of your journey to becoming the best functional athlete possible. Let’s get to work!

Membership perks

  • Stay motivated

    I post new workouts regularly so you can stay motivated and accountable. With all my offerings, you'll never get bored of your workout routine.

  • Easy-to-follow videos

    Know you're training the right way with my easy-to-follow videos and simple instructions.

  • Community

    Join my community to share your fitness journey, stay accountable, and connect with others.

  • Nutrition made simple

    Learn exactly what to eat when, get grocery lists, and find out the foods that will keep you fueled and energized.

  • Workout programs

    My workout programs are made for all fitness levels to help you achieve your goals.

  • Talk to me

    Message me directly in the app to ask me any questions you may have and request your favorite content.

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Frequently Asked Questions