Experience premier Muay Thai training at one of Brazil’s top gyms. Our academy is led by renowned masters with extensive experience in training and combat, ready to teach you and your entire family. If you’re passionate about sports and seeking adventure, join us at BRAZILIAN BLACK THAI and discover the spirit of Brazil.


We specialize in the physical training of elite athletes in MMA, Kickboxing, and Muay Thai. Celebrating our first victory in the UFC in 2022.


Jean and Kris Kay, married for 22 years, share a lifelong passion for the world of FIGHTING. Both have extensive experience and are black belts in Kickboxing certified by the Brazilian Kickboxing Confederation (CBKB) and hold a black degree in Muay Thai from the Brazilian Muay Thai Confederation – Thai Boxing (CBMT-BT). Today, they have about 500 students in Jundiaí across 6 locations, including decentralized classes in condominiums, social projects, and corporate training sessions, with additional students in four more units in Várzea Paulista. Jean and Kris have been part of two well-structured teams (GIBI THAI for 5 years and INSIDE for 6 years), gaining experience in fights, partnerships, friendships, loyalty, achievements, and training, but most importantly, a dream. Although they were part of other teams, they always dreamed of having their own team. After years of struggle, focus, purpose, and determination, this dream has been realized.

Today, we are BBT (Brazilian Black Thai), affiliated with ISCA (International Federation of Martial Arts), and we are here to make history. With championships in Muay Thai and Kickboxing, we have recently started transitioning to MMA. In less than two years, we have claimed championship belts from the two main organizations in the country.

We feel a sense of accomplishment, freedom, overcoming, desire, work, autonomy, love, respect, adrenaline, discipline, unity, and most importantly, FAMILY. BBT has become more than a dream for us; it is a realization that is etched in our flesh and marked on our souls.

We, as masters, friends, mentors, and teachers, can only thank those who were with us in the past and who are with us now. Our heartfelt THANKS for everything, for the experience, respect, and teamwork. From here on, every day is a NEW LIFE!

Come and join our team, visit one of our locations, and try a class for free…

Kris Kay & Jean Kay

BBT Family

Partners & Sponsors

Training Centers


Master Jean Kay and Kris Kay
​ Mon: 8:00 AM - 7:30 PM
​ Tue: 1:30 PM - 7:00 PM / 8:30 PM
​ Wed: 8:00 AM - 7:30 PM
​ Thu: 1:30 PM - 7:00 PM / 8:30 PM
​ Fri: 7:30 PM

Mansão Maromba
Muay Thai | Kickboxing | MMA
Master Jean Kay and Kris Kay – tel +55 11 99023-7979
177 Antonio Tofolli Street, Vila Rami – Jundiaí, Brazil
Check availability and schedule your appointment

Keisei Itupeva
Instructor Edinazio Carvalho – tel +55 11 95654-6684
575 Italia Avenue, Parque Amarilis – Itupeva, Brazil
Mon: 7:00 AM to 8:00 AM / 8:00 PM to 9:30 PM
Tue: 7:30 PM to 9:00 PM
Wed: 7:00 AM to 8:00 AM / 8:00 PM to 9:30 PM
Thu: 7:00 PM to 9:00 PM
Fri: 7:00 AM to 8:00 AM / 6:30 PM to 8:00 PM

Instructor Ricardo Patena – tel +55 11-99721-8421
208 Amélia Latorre Street, Retiro neighborhood – Jundiaí, Brazil
Tuesday and Thursday – 8:00 PM to 9:15 PM

Keep in touch

Contact us, book a trial class, and come be part of our family!