Ron Kosakowski's


Established in 1988

An education in martial science as well as martial art

Click here to see information on Inosanto Kali and Pekiti Tirsia Kali Click here to see information on Inosanto Kali and Pekiti Tirsia Kali Cick here to see information on Kun Tao Dumpag Click here to see information on Jun Fan Gung Fu/ Jeet Kune Do, Mixed Martial arts, MMA fighting, Muay Thai Click here to see a blend of Brazilian Jiu Jitsu, Russian Sombo, Shoot Wrestling, Judo, Kuntao, Silat adn Dumog for just grappling, Mixed Martial Arts, MMA fighting or self defense purposes
Inosanto Kali

Pekiti Tirsia Kali

Kuntao Jun Fan Gung Fu /
Jeet Kune Do
Integrated Grappling

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About the School

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Is now offering Brazilian Jiu Jitsu Classes for Children, teens and adults 

Important note - Morning classes have now been added.

Call if you need to know more about it or just come on down and try out a class!

These classes are taught by Vinnie Brightman, a Long Time Student of Ron Kosakowski in Jeet Kune Do, Muay Thai, Kali & Integrated Grappling Systems & a Long Time Student of Gracie style Brazilian Jiu Jitsu. 

Come learn the most popular grappling system that took the US by storm. This is the grappling style many UFC and other MMA fighters practice for powerful take downs and for good ground fighting skills. Brazilian Jiu Jitsu, from Carlson Gracie, is great for self defense and very good for getting into excellent physical condition. Brazilian Jiu Jitsu tournament training is also offered for everyone interested in trying out their skills against other grappling/Jiu Jitsu schools. Training at the PSDTC is a very safe environment for all practitioners, yet still practical for the street, cage matches or the ring.

Ask about our MMA and BJJ package deal. You can't beat this deal! here for more information what our MMA classes are all about!


Monday –      5 pm to 6:20 pm

Wednesday – 5 pm to 6:20 pm

Friday –         5 pm to 6:20 pm

  • Teenage Class Schedule, ages 13 - 17:

   Tuesday –     4:45 pm to 6:20 pm

Thursday –    5 pm to 6:30 pm

      Saturdays –   12:45 pm to 2:15 pm

  • Adult BJJ Schedule ages 18 plus

Tuesday – 8 pm to 9:30 pm

     Thursday – 6:30pm to 7:55 pm

      Saturday - 2:15 pm to 4:00 pm

We Now Have Morning Brazilian Jiu Jitsu Classes

Monday: 9:00 AM - 10:15 AM

Wednesday: 9:00 AM - 10:15 AM

Friday: 9:00 AM - 10:15 AM




Want to see your kids do get off video games and away from the front of the TV and get into good shape? How about this...are you feeling old when you are not old? Do you feel like you are out of shape? Come on down and try out a class.

Guaranteed, you will like what you see.


 Call 203 596 9073 or 203 802 8533, ask for Ron or Vinnie


Practical self defense Training Center

A literal university of many martial art styles. The first Mixed Martial Art (MMA) school in New England.




Brazilian Jiu Jitsu

Practical Self Defense Training Center

847 Hamilton Ave. (Rt-69)

Waterbury, CT


203-596-9073 or 203-802-8533




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Jun Fan Gung Fu / Jeet Kune Do • Kali - Silat • Pekiti Tirsia Kali Arnis, Eskrima • Kuntao • Integrated Grappling Systems • Muay Thai - MMA

Copyright © 2001 - 2008 Ron Kosakowski
Practical Self Defense Training Center
847 Hamilton Avenue
Waterbury, CT 06706
203-596-9073 or 203-802-8533
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