Caroline Wozniacki defeated Marion Bartoli in the final, 6–1, 2–6, 6–3 to win the women's singles tennis title at the 2011 Indian Wells Masters.
Caroline Wozniacki was the defending champion, but was not allowed to participate because there were already two top 6 players in the draw.
María José Martínez Sánchez was the defending champion, but lost to Ekaterina Makarova in the quarterfinals.
Caroline Wozniacki won the title, defeating Kaia Kanepi in the final, 6–1, 6–0. This was the first title in 13 months for the former World No. 1 and her first of 2012.
Dominika Cibulková was the defending champion, but she was defeated in the quarterfinals by Caroline Wozniacki.
Hsieh Su-wei was the defending champion, but she lost in the quarterfinals to Bethanie Mattek-Sands. Karolína Plíšková defeated Mattek-Sands in the final, 1–6, 7–5, 6–3, to claim her first WTA singles title.
Serena Williams was the defending champion, and successfully defended her title, defeating Jelena Janković in the final 3–6, 6–0, 6–2.
Defending champion Serena Williams defeated Maria Sharapova in the final, 6–1, 6–4 to win the women's singles tennis title at the 2013 Madrid Open.
Maria Sharapova defeated Simona Halep in the final, 1–6, 6–2, 6–3 to win the women's singles tennis title at the 2014 Madrid Open.
Anastasia Pavlyuchenkova was the champion when the event was last held in 2010, but she chose to participate in the Swedish Open instead.
Misaki Doi was the defending champion, but lost in the first round to Lauren Davis.
Lucie Šafářová was the defending champion, but withdrew from her second-round match against Kristýna Plíšková.
Dominika Cibulková was the defending champion, but lost in the second round to Heather Watson.
Caroline Wozniacki was the defending champion and successfully defended her title, defeating Anastasia Pavlyuchenkova in the final, 6–0, 7–5. This marked Wozniacki's first title of 2017 and snapped a six-match losing streak in tournament finals.
Petra Kvitová defeated Garbiñe Muguruza in the final, 3–6, 6–3, 6–4 to win the singles tennis title at the 2018 WTA Qatar Open.
Petra Kvitová defeated Kiki Bertens in the final, 7–6(8–6), 4–6, 6–3 to win the women's singles tennis title at the 2018 Madrid Open. It was Kvitová's third Madrid Open title, and she became the first player to win three women's singles titles at the Madrid Open.
Defending champion Elina Svitolina defeated Simona Halep in a rematch of the previous year's final, 6–0, 6–4 to win the women's singles tennis title at the 2018 Italian Open.
Karolína Plíšková was the defending champion, but lost in the quarterfinals to Aryna Sabalenka.
Caroline Wozniacki was the two-time defending champion, but lost in the second round to Camila Giorgi.
Elise Mertens defeated Simona Halep in the final, 3–6, 6–4, 6–3 to win the singles tennis title at the 2019 WTA Qatar Open.
Naomi Osaka defeated Ashleigh Barty in the final, 3–6, 6–3, 6–2 to win the women's singles tennis title at the 2019 China Open. It was Osaka's second Premier Mandatory-level title.
Elena Vesnina 
Jamie Hampton 
