Турнір чемпіонок Commonwealth Bank 2011

WTA Singles Rankings (24 жовтня 2011)
Sd	Гравчиня	Rk	Won
1	Маріон Бартолі	9	Осака
2	Пен Шуай	16	Wild Card
3	Сабіне Лісіцкі	18	Бірмінгем Даллас
4	Роберта Вінчі	22	Барселона 'с-Гертогенбос Будапешт
	Даніела Гантухова	23	Паттайя
	Ана Іванович	26	Wild Card
	Анабель Медіна Гаррігес	28	Ештуріл Палермо
	Надія Петрова	31	Вашингтон

Маріон Бартолі reached the semifinals of the French Open.

Маріон Бартолі[1]
Bartoli is making her second appearance at the championships after finishing runner-up at the inaugural Tournament of Champions in 2009. She has produced a good year, returning to the top 10 and reaching 14 quarterfinals, the most of any player. The Frenchwoman reached five finals in the year, winning two in the Aegon International over Петра Квітова, 6–1, 4–6, 7–5, and the HP Open over Саманта Стосур, 6–3, 6–1, earning her a spot in the championships. She lost з рахункомs of the BNP Paribas Open to Каролін Возняцкі, the Internationaux de Strasbourg to Андреа Петкович, and the Bank of the West Classic to Серена Вільямс. She also reached her second career Grand Slam semifinal Відкритий чемпіонат Франції. At the other Grand Slams, she reached the quarterfinals of Вімблдон and the second rounds of the Відкритий чемпіонат Австралії and the Відкритий чемпіонат США. Her biggest wins of the year were against Серена Вільямс і Кім Клейстерс. She also barely missed originally qualifying for the Чемпіонат Туру WTA, but filled in for Марія Шарапова when she sprained her ankle.

Пен Шуай[1]
Peng was one of the wildcard recipients in the tournament. She has had a consistent year and was able to crack the top 20 for the first time and reached a new career high of number 14 after reaching the quarterfinals of the Western & Southern Open. She reached her first premier-level final Brussels Open, losing to Каролін Возняцкі, 6–2, 3–6, 3–6. She also reached four other semifinals. She reached the fourth round of all the Grand Slams except the Відкритий чемпіонат Франції, where she reached the third round. Her big wins of the year came against Лі На і Віра Звонарьова.

Сабіне Лісіцкі[1]
Lisicki has had a breakthrough year, including improving her ranking from a low of no. 218 in March, to a career-best of no. 17 in September. She also won two titles in the year, the Aegon Classic over Даніела Гантухова, 6–3, 6–2, and in the Texas Tennis Open over Араван Резаї, 6–2, 6–1, which made her qualify for the event. She made her maiden Grand Slam semifinal at Вімблдон before losing to Марія Шарапова, the first time a German woman had reached a Grand Slam semifinal since Штеффі Граф there in 1999. She also reached the fourth round of the Відкритий чемпіонат США and the second round of the Відкритий чемпіонат Франції. She has earned top-10 wins over Саманта Стосур, Лі На, and Маріон Бартолі.

Роберта Вінчі[1]
Vinci has had her best season to date, reaching a career high of no. 18 in the world and winning three titles, the third most singles titles in the season. Her titles were all international events, which was her pass to the event, winning in the Барселона Ladies Open over Луціє Градецька, 4–6, 6–2, 6–2, the UNICEF Open over Єлена Докич, 6–7^(7–9), 6–3, 7–5, and the Poli-Farbe Budapest Grand Prix, у фіналі перемігши Ірина-Камелія Бегу, 6–4, 1–6, 6–4. However, she has had an inconsistent year, including losing eight in a row before winning Barcelona. At the Grand Slams, she reached the first round of the Відкритий чемпіонат Австралії and reached the third rounds of the other slams. She earned her biggest win of her career by defeating world no. 1 Каролін Возняцкі в третьому колі of the Rogers Cup.

Даніела Гантухова[1]
Hantuchová has had a bad start of the season, losing her first four matches, before triumphing in the PTT Pattaya Open over Сара Еррані, 6–0, 6–2, without dropping a set in the tournament. It was also her first title since жовтень 2007. She also reached the final of the Aegon Classic, losing to Сабіне Лісіцкі, 3–6, 2–6. She had mixed results in the Grand Slams, losing in the fourth round of the Відкритий чемпіонат Франції, third round of the Вімблдон, and the first rounds of the Відкритий чемпіонат Австралії and the Відкритий чемпіонат США. She claimed major upsets across the year, including defeating Каролін Возняцкі, her first win against a reigning world no. 1, and claiming her first win over Вінус Вільямс in 11 matches. She also had top-10 victories against Віра Звонарьова, Лі На, Маріон Бартолі, and Вікторія Азаренко.

Ана Іванович[1]

Ivanovic is the defending champion, after defeating Аліса Клейбанова з рахунком and is one of the wildcard recipients. The Serb endured a horror 2011 season, being the only one not to reach a final in the field and only made it to two semifinals in the Aegon Classic and the Mercury Insurance Open. However, she was able to go deep in two Premier Mandatory, reaching the quarterfinals of the BNP Paribas Open and the China Open. She was also able to earn top 10 victories over Єлена Янкович і Віра Звонарьова. Her performances at the Grand Slams were very poor, being — в першому колі of the Australian і Відкритий чемпіонат Франціїs, the third round at Вімблдон and the fourth round of the Відкритий чемпіонат США. She won only four Grand Slam matches the entire year (not including a walkover victory against Петра Цетковська, who знялись from their second round match at the US Open через травму), one less than her tally from 2010.

Анабель Медіна Гаррігес[1]
Medina Garrigues is competing вдруге, the first being in 2009. She has won two titles in the year, winning her first titles in three years. She won the Estoril Open, у фіналі перемігши Крістіна Барруа, 6–1, 6–2, and the Internazionali Femminili di Palermo, у фіналі перемігши Полона Герцог, 6–3, 6–2. These wins made her the player with most clay titles of all active players with 10, surpassing Вінус Вільямс. Her title at Palermo was her fifth at the event, and she became only the fourth active player to win the same tournament five times. In the Grand Slams, she reached the first round of the Відкритий чемпіонат Австралії, second round of the Відкритий чемпіонат Франції, the first round at Вімблдон, and the third round of the Відкритий чемпіонат США. She has beaten two top-20 players in the year, Шахар Пеєр і Маріон Бартолі.

Петрова Надія Вікторівна[1]
Petrova is one of the debutants in the event. She won her first title since листопад 2008 Citi Open, у фіналі перемігши Шахар Пеєр з рахунком 7–5, 6–2. This made her qualify for the event. However, she has only reached two other quarterfinals. At the Grand Slams, she reached the fourth round at Вімблдон, the third rounds of the Відкритий чемпіонат Австралії and the Відкритий чемпіонат США, and the first round of the Відкритий чемпіонат Франції. She has beaten top-20 players, Роберта Вінчі, Ана Іванович, and Анастасія Павлюченкова.