Ground Game Theory logo

Meet the team

Ground Game Theory is built by coaches who care about strong culture, serious training, and long-term development. Our team is here to help students learn, improve, and enjoy the process of getting better.

Head Instructors

The Founders of Ground Game Theory

Carlmichael Leiva - Co-Founder | Head Instructor at Ground Game Theory Miami

Carlmichael Leiva

Co-Founder | Head Instructor

Jiu Jitsu black belt with a decade of martial arts experience and a professional background in research.

Full Profile
Keanoush Amirizadeh - Co-Founder | Head Instructor at Ground Game Theory Miami

Keanoush Amirizadeh

Co-Founder | Head Instructor

Jiu jitsu black belt with over ten years of training experience. He is particularly known for his exceptional leg lock skills, impassable guard game, and relentless passing pressure.

Full Profile
Coaching Staff

Additional Instructors

Alex Calienes - MMA Instructor at Ground Game Theory Miami

Alex Calienes

MMA Instructor

Multi-disciplinary martial artist with over 15 years of dedicated training and competition. Holding a black belt in Goju Ryu Karate, a purple belt in Brazilian Jiu-Jitsu, and boasting an undefeated amateur MMA record of 2-0.

View Profile ->
John Kaufman - Jiu Jitsu Instructor (Kids & Adult) at Ground Game Theory Miami

John Kaufman

Jiu Jitsu Instructor (Kids & Adult)

Seasoned martial artist and father with a passion for empowering others through his expertise and experience. His journey in the world of combat sports began at the tender age of 5 when he first stepped onto the mat to learn the art of Taekwondo.

View Profile ->
Daimyo Alonso - Jiu Jitsu Instructor (Adults) | Foundations at Ground Game Theory Miami

Daimyo Alonso

Jiu Jitsu Instructor (Adults) | Foundations

Purple belt, active competitor, and Foundations coach at Ground Game Theory. Accountant by day and grappler by night, Daimyo brings aggressive, intentional technique and deep competition experience to the 6 PM Foundations class.

View Profile ->
Grey Marin - Kids Jiu Jitsu Instructor at Ground Game Theory Miami

Grey Marin

Kids Jiu Jitsu Instructor

Brown belt in Brazilian Jiu Jitsu with years of experience both on the mats and in the classroom. She spent over seven years as an elementary school teacher and has also taught youth jiu jitsu, giving her a deep understanding of how kids learn, grow, and build confidence.

View Profile ->

Want to train with the team?

Start your free one-week trial.