Harbor City Dojo

2225 S Babcock St in Melbourne, FL

Sensei Martin Suarez Luna

Sensei Martin is the cheif instructor of our Brazilian Jiu Jitsu progran.He is also a multi-disciplined Black Belt instructor and a former MMA fighter.

Sensei Deb Lee has been a martial arts student since 1983. She has taught karate, self-defense and personal safety seminars and workshops throughout the US to youths and adults since 1988. She holds the rank of Godan (5th degree black belt). She has taught at the National Women’s Martial Arts Federation (NWMAF) Special Training camp, the Pacific Association of Women Martial Artists (PAWMA) training camp, and the Association of Women Martial Arts Instructors (AWMAI) conference. Deb also has an background in law enforcement, having spent a decade as a law enforcement officer. 

 Sensei John Newton



DOB:              20 August 1961    Bedford, Virginia


Parents:           Col. George L. Newton, Jr.  (deceased)

                        Virginia McClintock Newton  (deceased)

 Early Childhood:   


                        Lived in northern Virginia, Washington D.C., London England,

                        Great Falls, MT, Minot, ND and Satellite Beach, FL.  Currently

                        resides in the Melbourne Florida area.


                        Began martial arts as student in Kodokan Judo at age 6.



Teen Years:     Earned Shodan in Judo and in Shorin Ryu Karate.

                        Earned rank of Eagle Scout.    Awarded US Army ROTC scholarship.



Years:              University of Florida. Earned Shodan and Nidan in Wado Ryu Karate.



College:           US Army then 3 National Banking Corporations.  Became owner/partner of an Industrial Park Development Company and later started his own Real Estate and Development Companies.


During his lifetime, John Newton has trained under Professor George Newton III, 6th Dan Kodokan Judo, Sensei Mike Sawyer, 5th Dan, Professor John Wilcox, 10th Dan, Dr. Rod Sacharnoski, 10th Dan (Soke of Juko Ryu), Professor Katsuyuki Kondo (Soke of Daito Ryu).   He has tested and earned 3rd Dan in Kempojutsu, 5th Dan in Dai Yoshin Ryu Aikijujutsu, 7th Dan in Juko Ryu Jujutsu, 5th Dan in US Jujitsu (USJJF), and 7th Dan in Jujitsu (USJA).  Also earned Kyoshi (Instructor) level in Shinjo Ryu Kenjutsu/Iaijutsu, Shodan in Bujinkan Ninjitsu (Dr. Masaaki Hatsumi), Shodan in Seidokan Toide (Professor Shian Toma).  He is one of the few “Combat Ki Masters” trained and tested by Dr. Sacharnoski.


Sensei Newton is a recognized Master Rank Examiner in both the United States Jujitsu Federation (USJJF) and the United States Judo Association (Jujitsu Division).

Sensei John Newton

Newton continues to teach on a weekly basis at HARBOR CITY DOJO, the school he founded with Sensei David Parritt (8th Dan) in Melbourne Florida.  He has been teaching actively for the past 15 years.  The dojo has approximately 50 active students, with 8 active Yudansha.  Classes are taught 5 nights a week.  Special Programing is available to visiting high level students who wish to have compressed training in 3-day to 6-day sessions.

Sensei Dave Parritt

(7th degree black belt). He has studied Judo throughout the world while part of the US Military. He has worked out at the Kodokan (The first school of Judo). He has been doing Judo for over 60 years. He also has a 7th degree black belt in Japanese Jujitsu and the USJA Committee Chairperson of Jujitsu.

Sensei David J. Ellis

Date Started Judo: June 1975 (Age 7) Current Judo Rank: Godan (5th degree black belt) (USJA) Current Judo Certifications: IJF Continental (a.k.a. IJF-B) Referee USJA/USA Judo Background Check (expires 5/11/2020) USJA/USA Judo Safe Sport (expires 2/26/2020) USJA Heads Up USJA Coach Regional (expired 5/9/2022) USJA Nage-no-Kata Instructor Level A USJA Kime-no-Kata Instructor Level A USJA Katame-no-Kata Instructor Level A.

Judo Black Belt Rank History: Rank Date Earned Certificate # (if applicable) Godan (5th Degree Black Belt) April 7, 2017 USJA Yodan (4th Degree Black Belt) June 29, 2005 USJA Sandan (3rd Degree Black Belt) November 15, 1998 USA Judo #985031871 Nidan (2nd Degree Black Belt) February 14, 1995 USA Judo #955021370 Shodan (1st Degree Black Belt) April 11, 1989 USA Judo #895010518.

Judo Referee Levels: From To Referee Level April 2018 Present IJF Continental (a.k.a. IJF-B) September 2009 April 2018 Pan American Judo Confederation C-Level September 2002 September 2009 USA Judo National Referee 1984 August 2002 SSJI/FJI Regional Referee Judo.

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Sensei Fred Fries

Sensei Fries has a 6th degree black belt and has been doing Judo for over 52 years. He has trained at the Kodokan when he was wart of the U.S. military. Sennsei Freis also has a black belt in Japanese Ju Jitsu.

Sensei Andre Merrill

Sensei Merrill has studied Judo under 2 different 9th degree black belts (Dr. Ashida in NY and George Medhi in Brazil). Andre has been doing Judo for over 40 years. Used to run Florida Tech Judo Club along with Faith Urban.

Sensei Jim Ragan

Sensei Jose Merino

Sensei Michele Elefante holds the rank of Godan (5th degree black belt). She began her formal study of martial arts in 1990, and teaching Self-defense 1995. She has taught Self-defense workshops throughout the United States, to all ages, youth to elder, male and female. Additionally, she has been a repeat instructor at the National Women’s Martial Arts Federation (NWMAF) Special Training, the Pacific Association of Women Martial Artists (PAWMA) training and the Association of Women Martial Artists (AWMAI) conference.

Sensei Jim Hannan