In 2005, she won the chess championship of Moldova (open to both men and women).

In 1999 Petrenko divided first place in the international women's chess tournament in Bucharest.

In 2006 and 2007 she two times in a row won international women's chess tournament in Belgrade.

Petrenko participated in knock-out tournament Women's World Chess Championships: Petrenko played for Moldova in the Women's Chess Olympiads:[4] Petrenko played for Moldova in the European Team Chess Championship:[5] In 1996, she was awarded the FIDE Woman International Master (WIM) title and received the FIDE Woman Grandmaster (WGM) title five years later.

In 2004, Petrenko was awarded the FIDE International Master (IM) title.