2021/2022
Director of Gorin Tennis Barcelona 
Players:
Marcelo Zormann (BRA): 2014 Wimbledon Boys' doubles Winner, Gold Medal in doubles at Nanjing Youth Olympics, ITF Junior #12, Career High ATP ranking in singles #467/ in doubles #264
Oscar Gutierrez (BRA): Career High ATP ranking in singles #363/ in doubles #293

2021
Arina Rodionova (AUS): Career High WTA ranking in singles #116 / in doubles #41

2014-to-date
Director of Tennis Operations in Gorin Tennis Academy, GPTCA Accredited Academy - USA

Coach of:

Stefan Leustian (USA): ITF Career High ranking #79, Les Petits As 2016 winner
Nikita Matveyko (RUS): Career High ATP ranking: #1639 (claimed his first ATP point as a junior)
Arshak Ghazaryan (ARM): #1 ranked player in Armenia. Davis Cup team member

2015-2016
Anastasia Kharitonova (RUS):  WTA Career High #1008, ITF junior #18
Egor Noskin (RUS):  ATP Career High #986, ITF junior #80

2015
Worked with Leonardo Kirche (BRA): Career High ATP ranking: #196

2008-2014
Founder and Director of Team Play Tennis Academy - Athens, Greece

Playing Career

2007
Represented Greece as #1 at European University Championship in Moscow, Russia

2004
Member of Greek national team (U-18)
Represented Greece as #2 at European Championship (U-18) in Vinkovci, Croatia

2019
GPTCA B-Level International Coach

2015
GPTCA C-Level International Coach

2013
Professional Tennis Registry (PTR)
PTR Professional

2009
National and Kapodistrian University of Athens, Greece
Bachelor's Degree in Physical Education and Sports Science (tennis)

Dimitrios Billios

Email: dimitrios@gorintennis.com
Website: www.gorintennis.com
Phone no.: +1 (916)8468927