Defending champion Victoria Azarenka defeated Serena Williams in the final, 7–6(8–6), 2–6, 6–3 to win the singles tennis title at the 2013 WTA Qatar Open.
All of the top three seeds (Azarenka, Williams and Maria Sharapova) were in contention for the world No. 1 ranking at the start of the tournament. Williams regained the World No. 1 ranking for the first time since October 2010, becoming the oldest No. 1 player in the history of the WTA, after she beat Petra Kvitová in the quarterfinals. She would remain the world No. 1 for a further 186 weeks until 12 September 2016, when she was replaced by Angelique Kerber, tying Steffi Graf's record for longest consecutive spell at No. 1.[1]
Seeds
The top eight seeds receive a bye into the second round.