Career
She made her debut as a professional in July 2000, aged 14, at an International Tennis Federation tournament in Jakarta. In March 2009, she was the highest ranked Indonesian in the Women's Tennis Association Tour Singles Rankings. In 2002 and 2003, she played in the Australian Open Junior Championships.
Gumulya represented Indonesia at the 2006 Asian Games at Doha.
Gumulya also enjoyed success at the 2009 Southeast Asian Games, winning bronze in the Women"s Doubles and a silver in the Women"s Team. In March 2009, Gumulya retired during the second set of the quarterfinal of the ASB Pro tournament at Hamilton, New Zealand, due to a knee injury.
The injury forced her to withdraw from the third and final tournament of the ASB Pro Circuit, that at Wellington. Sandy is the older sister of another tennis player, Beatrice Gumulya.
Singles: 17 (11–6)
Doubles: 11 (3–8).
