Haas-Jitsu Defensive Systems provides a quality well rounded system of martial arts techniques that are safe, simple, and effective.
This includes Self-Defense, Defensive Tactics, Mechanics of Arrest, Ground Fighting, Judo, Jiu-Jitsu, Etc.
KW -- Chad Haas, Sensei Haas, Haas Judo, Zdenek Matl, Sensei Matl -- KW

Chad Haas Bio  :  Philosophy  :  Training Facility
History  :  News  :  Home
Sensei Chad Haas Bio
Personal : Born March 1973 in San Antonio, Texas
Experience :
Present - 2005 : University of Texas Systems Police Department : Guest Instructor
             Judo, Jiu-Jitsu, Defensive Tactics, Mechanics of Arrest
Present - 2010 : Team Haas Judo Jiu-Jitsu : Head Instructor
             Judo & Jiu-Jitsu
2012 - 2008 : F.B.I. Special Agents : Specialized Skills Group Training Instructor
             Judo & Jiu-Jitsu
2010 : Team Rabadi Brazilian Jiu-Jitsu : Head Instructor
             Judo
2008 - 2004 : CAPCOG Peace Officer Academy : Guest Instructor
             Judo, Jiu-Jitsu, Defensive Tactics, Use of Force Continuum
1995 - 1998 : Women's Self-Defense : Head Instructor
             Judo & Jiu-Jitsu
1993 - 2015 : Round Rock Martial Arts : Instructor
             Judo & Jiu-Jitsu

Seminars for various Organizations and Martial Arts schools.
Texas National Guard, Austin Medical Attachment : Austin, Texas : David Ferrero Kajukenbo : Austin, Texas : Sigung Craig Speer and Sifu Stanley Smith
Premier Martial Arts : League City, Texas : Master Al Garza
Premier Martial Arts : Dickenson, Texas : Master Al Garza
Credentials :
2013 : Jiu-Jitsu : Promoted to Rokudan (6th Dan Black Belt)
2010 : Judo : Promoted to Godan (5th Dan Black Belt)
2009 : Jiu-Jitsu : Promoted to Godan (5th Dan Black Belt)
2006 : Judo : Promoted to Yondan (4th Dan Black Belt)
2005 : Jiu-Jitsu : Promoted to Yondan (4th Dan Black Belt)
2002 : Judo & Jiu-Jitsu : Promoted to Sandan (3rd Dan Black Belt)
1996 : Judo & Jiu-Jitsu : Promoted to Nidan (2nd Dan Black Belt)
1994 : Judo & Jiu-Jitsu : Promoted to Shodan (1st Dan Black Belt)
1994 : Judo & Jiu-Jitsu : Promoted to Ikkyu (Brown Belt)
1993 : Judo & Jiu-Jitsu : Started Judo with Sensei Zdenek Matl ( Bio linked above )
1992 - 1993 : Soryu Karate : Blue Belt
Approximately 1980 - 1982 : Moo Duk Kwan Tae-Kwon-Do : 4th Gup (Blue Belt)

All Judo & Jiu-Jitsu promotions are from Sensei Zednek Matl (Bio)
Affiliations :
US Judo Association, Life Member
US Judo, Inc, Life Member
US Martial Arts Association, Life Member