Trained at Sylvano Tennis Academy in Santa Clara, California under coach Sylvano Simone.
Entered Georgia ranked the 28th junior in the world.
Won the 2012 Japan Open Junior Championships and reached the semi-finals of the Asia/Oceania Championships and the World Super Junior Championships.
Participated in the 2012 Junior French, Junior U.S. Open and Wimbledon Championships.
Won doubles at the 2011 Asian Junior Championships and Mediterranee Avenir.
Won the 2010 Nakamuta Cup
Born: June 21, 1995 in Osaka, Japan
Parents: Megumi and Takashi Okuno
Major: Communication Studies
Family: Has an older brother, Hirohki (19)