Ron Kosakowski's


The PSDTC Was Established in 1988

An education in martial science as well as martial art!

A literal university of many martial art styles right here in Waterbury!


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

Special Programs
& Events

Class Schedule
& Directions

About the School





Friday Night Class, Open Training/Sparring Time
6:30 - 8:30 pm

Friday night class is available for members of the Practical Self Defense Training Center to train in any area you would like to work on. Some people wrestle, while others are stick or knife drilling or sparring or escalating their Jeet Kune Do, Thai Boxing and/or no holds barred training skills. Some people come down at that time just to hit the bag or to lift weights at their leisure. It is also a very good time to learn from one another. How about this; if you miss a class that week,  you can take advantage of the Friday classes to get something in so you can still continue your growth and progression in the martial arts as opposed to doing nothing at all.

Ultimately, whatever type of ring fighting you are training for, that is a good time to get in some fight time and experience by planning ahead of time with other students to do some training for that night; you only benefit by getting more time in. Or if you are not training for a fight but you would like to be in a fighters condition, you can train right along side the ones who are fighting to get in more combat experience for yourself. You can see it is not a time for formal lessons. Although there is always someone there to answer questions if there is a problem area. If you are training for a big tournament or fighting pro more time is made available to you by one of the instructors at the  Practical Self Defense Training Center.

This time is recommended for your own self-improvement. Whether you are putting in some mat time or just going over techniques…practice is the only way to make self-defense a natural response if a situation should transpire. As the late Guro Edgar Sulite used to say..."repetition is the essence of all martial arts."





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Directions to the Practical Self Defense Training Center


Jun Fan Gung Fu / Jeet Kune Do Kali - Silat Pekiti Tirsia Kali, Arnis, Eskrima Kuntao Integrated Grappling Systems Muay Thai MMA Brazilian Jiu Jitsu Tai Chi Wing Chun

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