Petra Cetkovska was born in Prostejov in the Czech Republic and moved to Paris, France when she turned 19. She began playing tennis at age five with the encouragement of her father. She speaks English, French and Czech and considers grass and hard court her favorite surfaces.
She turned professional in 2000 and Cetkovska won her first ITF doubles title the same year. The next year, she claimed two ITF singles title in Croatia and Slovakia as well as a doubles title in Croatia. In 2002, she earned another ITF title in Greece and in 2003, in Italy.
She won two doubles title in 2004 and in 2005, won six singles titles and three doubles titles. Her attempt at qualifying for the Grand Slam tournaments feel short in 2006 but the same year, she won a singles title in Dubai and two doubles titles.
2007 opened for the 23-year old with a second round finish at the US Open but fell out the first round in Tashkent. She had qualifying round losses at the French Open and Wimbledon. Her doubles title bids were more successful, claiming her first Tour title with Hlavackova in Prague.
Cetskova also rounded up the year with three singles titles in the ITF (in Spain, Great Britain and Belgium) as well as three doubles titles. By the end of 2007, she rose from World No. 101 to No. 99.
Early this year, she managed a first round finish at the Australian Open and a quarterfinal finish at Fes. She won a singles title and a doubles title at Bucharest and the Saint-Gaudens ITF singles title. Her best season finish came at Roland Garros in the fourth round and a quarterfinal round in Birmingham. She is currently ranked No. 67 by the WTA.