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

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About the School





Integrated Grappling Systems (IGS)/MMA Fighting

847 Hamilton Ave (Rt 69).
Waterbury, CT 06706
203-596-9073 or 203-802-8533





This type of armbar from Jiu Jitsu will snap an arm with just a quarter inch movement.An integrated grappling (wrestling range, the 4th range in Jeet Kune Do) system that consists of sensitivity in flowing with positioning, escapes, take-downs, throws, lockups and ground fighting from  Brazilian Jiu Jitsu, Judo, Filipino Kun Tao, Filipino Dumog, Russian Sombo and Shoot wrestling (Shooto) and Catch Wrestling also known as "Catch-As-Catch-Can." Nice Judo throw!

While most people go to the IGS classes to improve their ground fighting abilities for tournaments - for self-defense purposes this type of grappling could be enhanced with the use of pinching and biting pressure points while utilizing elbows, knees and head-butts to weaken your opponent so leverage can be achieved that much easier. This is influenced by the South East Asian grappling methods that Ron Kosakowski has been training in for many years.

This particular range is very important to understand if you end up on the ground with a strong opponent. Size and strength is irrelevant due to the methods of training that develops proper technique and as long as it is constantly practiced. A useful and functional combination of grappling martial arts for Law Enforcement, bodyguards and correctional  officers, bouncers, etc. The blending of these grappling styles a person to be able to  take any extreme necessary for controlling an out of hand opponent with minimal harm if any at all to his or herself. 

See Ron Kosakowski bio to see where the experience well over many years of learning and training of many grappling systems came from. Ron was the first to bring Brazilian Jiu Jitsu and other grappling styles to Connecticut.

He catches people with this armbar all the time!This is sneaky to pull off, but most moves in the grappling arts are!



A side note here - Sifu Larry Hartsell had passed away back in August 20th, 2007. He was literally a treasure chest of knowledge in Jeet Kune Do, Catch Wrestling, Shoot Wrestling, Dumog, Judo and many styles of Filipino martial arts just to name a few. To find an instructor near you, go to It is hard to find a legitimate Jeet Kune Do instructor now a days. All of us have an old Larry Hartsell saying - "you either get it, or you don't." If you are interested in Larry Hartsell's style of grappling or Jeet Kune Do, these people listed on that page can help you get it.


Click here for the Integrated Grappling Systems/MMA/Jeet Kune Do/Muay Thai class schedule


Integrated Grappling Systems (IGS)/MMA/Brazilian Jiu Jitsu/Russian Sombo/Catch Wrestling
847 Hamilton Ave (Rt 69).
Waterbury, Connecticut 06706
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 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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