Tom Mar, James Bollettieri & Victor Weithorn

GSI (Greensquare Inc.) Tennis is a Grassroots Company, focusing on local communities, that specialize on developing tennis players from scratch for any age. GSI (namely Tom Mar) teaches students from basic fundamentals all the way up to preparing them for competitive tennis i.e. league play, High School Tennis and/or USTA events.
GSI was founded in 2,000 by Tom Mar, James Bollettieri (son of Nick Bollettieri) and Victor Weithorn. Since June of 2014, Tom Mar (as the sole principle of GSI Tennis) operates out of Pembroke Lakes Tennis Center, 10500 Taft St., Pembroke Pines, FL.
Tom Mar has been teaching tennis for over 37 years at every capacity in the tennis profession. He got his start by working many years with the World Renowned Nick Bollettieri. He started as the Nick Bollettieiri Tennis Academy's Fitness Director. Spent over 5 years as the Head Pro and founder of the M.A.R. JCC's High Performance Tennis Program. He spent 15 years as President and Tennis Director of GSI Bollettieri Academy in Miami Beach, Florida. Tom Mar continues to focus on teaching tennis to local communities (now in Pembroke Pines, FL) sharing his vast experiences and passion for the sport of tennis.
GSI was founded in 2,000 by Tom Mar, James Bollettieri (son of Nick Bollettieri) and Victor Weithorn. Since June of 2014, Tom Mar (as the sole principle of GSI Tennis) operates out of Pembroke Lakes Tennis Center, 10500 Taft St., Pembroke Pines, FL.
Tom Mar has been teaching tennis for over 37 years at every capacity in the tennis profession. He got his start by working many years with the World Renowned Nick Bollettieri. He started as the Nick Bollettieiri Tennis Academy's Fitness Director. Spent over 5 years as the Head Pro and founder of the M.A.R. JCC's High Performance Tennis Program. He spent 15 years as President and Tennis Director of GSI Bollettieri Academy in Miami Beach, Florida. Tom Mar continues to focus on teaching tennis to local communities (now in Pembroke Pines, FL) sharing his vast experiences and passion for the sport of tennis.