It will be a warm-up event for the 2013 tennis season, with the ATP World Tour beginning on December 31, 2012.
It was the 20th edition of the tournament, and part of the 2013 ATP World Tour and the 2013 WTA Tour.
It was the 121st edition of the Apia International Sydney, and was part of the ATP World Tour 250 series of the 2013 ATP World Tour, and of the WTA Premier tournaments of the 2013 WTA Tour.
It was the 38th edition of the men's event (25th for the women), known as the BNP Paribas Open, and was classified as an ATP World Tour Masters 1000 event on the 2013 ATP World Tour and a Premier Mandatory event on the 2013 WTA Tour.
It was the 13th edition of the event known as the Brasil Open, and is part of the ATP World Tour 250 series of the 2013 ATP World Tour.
It was the 21st edition of the BRD Năstase Țiriac Trophy tournament, and was part of the ATP World Tour 250 Series of the 2013 ATP World Tour.
The 2013 Brisbane International was a joint 2013 ATP World Tour and 2013 WTA Tour tennis tournament, played on outdoor hard courts in Brisbane, Queensland.
It was the 45th edition (for the men) and the 3rd edition (for the women) of the event known that year as the Citi Open (previously known on the men's tour as the Legg Mason Tennis Classic), and was part of the ATP World Tour 500 series of the 2013 ATP World Tour, and of the WTA International tournaments of the 2013 WTA Tour.
It was the 46th edition of the Crédit Agricole Suisse Open Gstaad, and was part of the ATP World Tour 250 Series of the 2013 ATP World Tour.
It was the 21st edition of the tournament which is part of the 2013 ATP World Tour.
The 2013 Dubai Tennis Championships (also known as the 2013 Dubai Duty Free Tennis Championships for sponsorship reasons) was a 500 event on the 2013 ATP World Tour and a Premier event on the 2013 WTA Tour.
It was the 39th edition of the event known that year as the Erste Bank Open, and part of the ATP World Tour 250 Series of the 2013 ATP World Tour.
It was the 21st edition of the event known that year as the Gerry Weber Open and was part of the ATP World Tour 250 series of the 2013 ATP World Tour.
It was the 27th edition of the tournament, which was part of the 2013 ATP World Tour.
It was the 45th edition of the tournament, and part of the ATP World Tour 250 series of the 2013 ATP World Tour.
It was the 70th edition of the Italian Open and was classified as an ATP World Tour Masters 1000 event on the 2013 ATP World Tour and a Premier 5 event on the 2013 WTA Tour.
It was the 24th edition of the Kremlin Cup, and part of the ATP World Tour 250 Series of the 2013 ATP World Tour, and of the Premier Series of the 2013 WTA Tour.
It was the 26th edition of the Open Sud de France, and part of the ATP World Tour 250 Series of the 2013 ATP World Tour.
It was the 24th edition of the Portugal Open for the men and the 17th for the women, and was part of the ATP World Tour 250 series of the 2013 ATP World Tour, and of the International-level tournaments of the 2013 WTA Tour.
It was the first edition of the Power Horse Cup as an ATP World Tour 250 series event on the 2013 ATP World Tour and replaced the World Team Cup, a team event previously held at the same venue.
It was the fifth edition of the tournament, and part of the 2013 ATP World Tour.
It was the 11th edition of the Thailand Open, and part of the ATP World Tour 250 Series of the 2013 ATP World Tour.
It was the 41st edition of the event known this year as the Rakuten Japan Open Tennis Championships, and part of the 500 Series of the 2013 ATP World Tour.
It was the 124th edition (for the men) and the 112th (for the women) of the Canadian Open, and was part of the ATP World Tour Masters 1000 of the 2013 ATP World Tour, and of the WTA Premier 5 tournaments of the 2013 WTA Tour.
It is the 19th edition of the St. Petersburg Open, and part of the ATP World Tour 250 Series of the 2013 ATP World Tour.
It was the 44th edition of the event known as the Swiss Indoors, and part of the 500 series of the 2013 ATP World Tour.
The U.S. National Indoor Tennis Championships is part of the ATP World Tour 500 series on the 2013 ATP World Tour, and the Memphis International is an International-level tournament on the 2013 WTA Tour.
It was the 45th edition of the Winston-Salem Open (as successor to previous tournaments in New Haven and Long Island), and was part of the ATP World Tour 250 Series of the 2013 ATP World Tour.
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