Coach was born and raised in NYC,  his father, Gordon was once a Harlem Globetrotter and can been seen in the movie GO MAN GO.  Davids' first coaching job was in the 1970s, after school at the St. Marks Catholic School on 138th St. in Harlem.  After college at FAMU in Tallahassee where he began his relationship with Clemon Johnson, a former NBA standout and  head coach of the Rattlers Coach Gartrelle moved to Tampa to raise his family.  He picked up his love for the game and continued by coaching the Riverside Park Smurfs to consecutive championships in the city's most prestigious league.  Curtis Kitchen, the USF standout and Seattle Supersonic forward was                                       a squad member, and the first Gartrelle alum
                                              into the NBA .  Today Dewan Huell, University
                                                of Miami standout and Big City Alum, has his eyes 
 on the league.

 Returning home, the mecca  of basketball embraced Davids talent and love for basketball by rewarding him with opportunities at the high school, college  and professional levels.  While leading teams to victories and championships in basketball his focus for youth basketball and the teaching of fundamentals never changed. He returned to Florida in 2008 and brought his high energy, basketball first mentality and big smile to Central Florida.
  During the regular season he is the Director for Big City Basketball and a high school referee.  Big City has classes, camps (5 during the summer) and lessons
 10 months a year in Melbourne.
During the summers  Coach Gartrelle is on the road, Denver, Los Angeles, Miami & Barcelona.  He is in his 27th year as a member of the New York Knicks summer basketball staff.  

 He loves to teach the game and has private lessons. He is the father of five and resides in Melbourne, Florida with his fiancee, Patricia.
  • United Nation Intl School - Head Coach  (Joakim Noah, PSAA Champs)
  • The City College of New York - Assistant Head Coach
  • USBL Connecticut Skyhawks - Associate Head Coach
  • Bryant HS  - Assistant Head Coach Queens Boro Champs
  • Brooklyn Friends School - Head Coach
  • NY Knicks Summer Camps - Assistant Director/Clinician
  • LA Lakers Summer Camps - Commissioner/Clinician
  • Orlando Magic Camps - Director/Clinician
  • Slam Magazine Camps - Assistant Director/Clinician
  • Brooklyn Nets/Josh Boone - Camp Director/Clinician
  • Snow Valley Basketball School - Coach/Clinician
  • Miami Heat Basketball Camp - Assistant Dir Clinician                                                Cocoa PAL - Basketball Director                               BASKETBALL CITY - CAMP DIRECTOR
  •                                      ELITE BASKETBALL ACADEMY - CAMP DIRECTOR                     
                                       ESCOLA VIROLAI BASKETBALL BARCELONA - DIRECTOR 
  •                                    ALLAN HOUSTON FOUNDATION - HEAD CLINICIAN
  • Private Lessons, from beginner to NBA player, we offer a variety of drills from fundamentals through high profile skill sets.
Clinician- One on One, Team evaluation
Officiating- Accredited FHSAA Basketball
            Speaking- Coaching clinics, camps,clinics, awards banquets
         AdministrationCamp, league or tournament organization, scoring and officiating staffing needs
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