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
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About the School





This is our 8th year doing the:

Annual Jeet Kune Do and Wing Chun All Day Workshop.

This is an event you will not want to miss out on!

Fee: Advanced Registration is by January 28th, 2015
Pay in advance and save!

  • Advance Registration - $80.00 

  • At The Door - $100.00 No Exceptions!

  • Visa and MasterCard are accepted by phone 203 802 8533 or 203 596 9073 or pay through your Paypal account at the bottom of the page

Check-in Time: Sunday, January 28th, 9:00-9:45 AM.  Workshop will begin at 10:00 AM SHARP and usually ends between 5 and 6 pm..

Location: Practical Self Defense Training Center, 847 Hamilton Ave., Waterbury, CT - Directions and Lodging Information... 

Optional items to bring: *PLEASE NOTE…For this workshop bring focus mitts (if you do not have focus mitts, they are sold at the PSDTC) Also, try to bring any kind of protective gear you have from whatever style you train in. You would be surprised on what we use for training apparatus. Any headgear, bag gloves, boxing gloves or MMA gloves would be best. The more gear we have around the more action we have at this workshop.

***All kinds of protective gear, Focus mitts, head gear, boxing and MMA gloves are all sold at the PSDTC if you would like to have your own training equipment.



For the Jeet Kune Do session taught by Ron Kosakowski - Bring focus mitts to this event. Focus mitts are for sale at the PSDTC if you need them. Many feel trapping will not work in a real fight or an MMA fight. Well, you will be showed so you know how to do it. Entering into trapping and trapping reflex development will be showed at this session. You will have a good idea how to pull it off. The entering methodology will either get you to trapping or a direct attack if there is no barricade in the way. A win, win situation for you. We will go through trapping to grappling the way it was taught by the Late Sifu Larry Hartsell to Ron Kosakowski as well. You will learn some good tricks to add to your techniques to practice.


In the Wing Chun portion of this years event taught by Andy DiGuiseppi - we will be covering "Wing Chun Bridging Concepts." 
The word “Bridging" is a phrase we use to explain the action of making first contact on the limbs.
Wing Chun style uses a very strategic set of concepts in order to take that contact and then flow to interceptions, close range strike combinations, arm and leg traps, and complete body knock downs. 
We’ll cover several methods of how we catch and intercept kicks. 
As well as how we use long range hand techniques to connect and control the hands of our opponent. 


  • This is going to be a very technical event showing the actual science of how these fighting methods work. You will not want to miss this one!

About Ron Kosakowski:

  • Owner of the Practical Self Defense Training Center (PSDTC) in Waterbury, CT
  • Received a 6th Degree Black Belt in Filipino Kuntao under the late Grand Master Joe Rossi back in 1994
  • Currently the owner and head instructor of the Filipino style called Kuntao as taught at the PSDTC
  • Certified in Jun Fan gung Fu / Jeet Kune Do under Bruce Lee protιgι Sifu/Guro Dan Inosanto
  • Certified Kali instructor level under Sifu/Guro Dan Inosanto                          
  • Senior instructor in Jun Fan Gung Fu, Jeet Kune Do, Grappling, Eskrima, Kali, Arnis under Larry Hartsell (original student of Bruce Lee)
  • Certified Senior instructor in Jeet Kune Do Concepts / Kali under Paul Vunak
  • Certified Pekiti Tirsia Kali/Dumog, Manundlo Unang Hagden under Grand Tuhon Leo T. Gaje Jr.
  • Former stuntman and fight coordinator for the American Stuntman Assoc. & Stunts Inc.
  • Appearances in eight of Paul Vunak’s Jeet Kune Do Street fighting video series
  • Instructor for well over 100 rape and mugging prevention seminars
  • Instructor for Airline employees and security in antiterrorist tactics 
  • Trainer in weapon retention along with bladed weapon use and defenses with military personnel and Army Rangers            
  • Trainer for fighters in MMA, Thai boxing, full contact stick fighting and grappling tournaments
  • Trainer in weapon retention, knife defenses and takedowns to subduing for all types of Law enforcement
  • Taught CRG (Crisis Response Group) an antiterrorist team the killing and maiming tactics from Kun Tao in the Philippines
  • Trained the Philippine National Police (PNP) and the National Bureau of Investigation (NBI) in the Philippines
  • Taught the SAF (Special Action Force) an anti terrorist Police/Military Unit the killing and maiming tactics from Kun Tao in Mindanao, Philippines. from 2006 to 2008
  • Owner of the Traditional Filipino Weapons web site...see for more information
  • Well over 40 years experience in many other martial arts and still researching to learn more



About Andy DiGuiseppi:

• Level 10 Black Sash in Chinese Wing Chun Kung Fu under the late Master Kevin Becker.
• Is a 5th Generation Descendant of the Yip Man Style Wing Chun.
• Experienced Practitioner of Filipino Kuntao under Guru Ron Kosakowski
• Experienced Practitioner of Filipino Kali, having studied Inosanto Kali, Pekiti Tirsia Kali, and Sina Tirsia Wali Kali.
• Experienced Practitioner of the Indonesian Silat systems of Mande Muda and Cimande.
• Experienced Practitioner of Brazilian Jujitsu, Judo, Japanese JuJitsu, and Integrated Grappling Systems under Ron Kosakowski.
• Is a level 2 Attuned Reiki Practitioner.
• Experienced Practitioner of several styles of Yoga.
• Has been training and learning at PSDTC since 2001.
• Has been teaching regular and private Wing Chun classes at PSDTC since 2006.
• Instructed over 27 Wing Chun Intensive workshops and seminars.
• Experience instructing bouncers, police officers, correctional officers, military personnel and other martial arts instructors.
• Has been involved in security enforcement for national entertainment acts and CT based music festivals.
• Has been studying Wing Chun for over 11 years straight with no lapses in training and is focusing toward mastery.
• Owner of and, resource websites for the study of Wing Chun.
• Author and Illustrator of “The Wing Chun Text Book” A training manual for learning Wing Chun.
• Accomplished graphic and web designer and owner of DiGuiseppistudios.
• Considers himself an eternal student and is ever seeking what it is his master sought.




(see RK BIO for more information)

For more information or directions to the Practical Self Defense Training Center, contact Ron at 203 802 8533 or 203 596 9073

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E-mail address___________________________________________Phone#_______________


Type(s) of martial arts studied____________________________________________________ 


I waive all rights of possible injury to Ron Kosakowski, Andrew DiGuiseppi, The Practical Self Defense Training Center and their associates.


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If under 18, a parent must sign. Parents Signature ____________________________________________________________________



Please make check or money order payable to PSDTC:                                      


                                   847 Hamilton Avenue

                                   Waterbury, Connecticut 06706



 .Call Ron to pay by credit card - 203-802 8533 or 203 596 9073.


Or you can preregister and save by going through your Paypal account:

JKD/WC seminar



Click here for basic Directions to the Practical Self Defense Training Center in Waterbury, Connecticut






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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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