Petra martic into fourth round of the Australian open 2018

Martic had to work much harder for her win, but ultimately outlasted qualifier Luksika Kumkhum of Thailand, 6-3, 3-6, 7-5, in two hours and ten minutes on Rod Laver Arena. Martic, celebrating her 27th birthday today, finds herself in the fourth round at a major for the third time in the last four events, after reaching that point at the French Open and Wimbledon last year.