Mirza then competed in the BNP Paribas Open where she lost in the second round to Flavia Pennetta. She then participated in the Miami Masters and lost to Mathilde Johansson of France in the first round. Mirza and her doubles partner Chia-jung Chuang of Chinese Taipei made the semifinals of the doubles event. Mirza lost in the first round of the MPS Group Championships but won the doubles title with Chuang. She lost in the first round at Roland Garros, losing to Kazakhstan's Galina Voskoboeva. She also lost in the second round of the doubles (with Chuang) and mixed doubles (with Mahesh Bhupathi). She participated in the 2009 AEGON Classic and reached the semifinals, losing to Magdalena Rybarikova of Slovakia 3-6,6-0,6-3, who later won the title.