Ana Ivanovic was the defending champion, but she decided not to compete this year.
In 2011, world number-one Caroline Wozniacki defeated Elena Vesnina in the final 6–2, 6–3 to win the women's singles tennis title at that year's Charleston Open. Samantha Stosur was the defending champion, but lost to Vesnina in the third round.
Jarmila Gajdošová was the defending champion, but lost in the quarterfinals to Mona Barthel.
Julia Görges was the defending champion, but she lost to Samantha Stosur in the second round.
Andrea Hlaváčková and Lucie Hradecká were the defending champions, but lost in the semifinals to Maria Kirilenko and Nadia Petrova.
María José Martínez Sánchez was the defending champion but decided not to participate.
Alizé Cornet won the title defeating Yanina Wickmayer in the final, 7–5, 7–6(7–1)
Petra Kvitová was the defending champion, but could not participate as Victoria Azarenka participated.
Victoria Azarenka was the defending champion but decided not to participate.
Venus Williams won the title, defeating Monica Niculescu 6–2 6–3.
Maria Sharapova defeated Caroline Wozniacki in the final, 6–2, 6–2 to win the women's singles tennis title at the 2013 Indian Wells Masters. It was her second Indian Wells Masters title.
Serena Williams defeated Maria Sharapova in the final, 4–6, 6–3, 6–0 to win the women's singles tennis title at the 2013 Miami Open. It was her record sixth Miami Open title, and Sharapova's fifth runner-up finish without winning the title.
Agnieszka Radwańska defeated Venus Williams in the final, 6–4, 6–2 to win the women's singles tennis title at the 2014 Canadian Open.
Serena Williams defeated Ana Ivanovic in the final, 6–4, 6–1 to win the women's singles tennis title at the 2014 Cincinnati Masters.
This article displays the qualifying draw for the Women's singles at the 2008 Australian Open.
Belinda Bencic won the women's singles tennis title at the 2015 Canadian Open after Simona Halep retired in the final, with scoreline at 7–6(7–5), 6–7(4–7), 3–0. Bencic defeated six major finalists in succession en route to her first WTA Tour title. At 18 years and 23 weeks of age, Bencic became the youngest woman to win the tournament, surpassing Ana Ivanovic's record from 2006.
Petra Kvitová was the defending champion, but withdrew before her first match due to a gastrointestinal illness.
Simona Halep defeated Dominika Cibulková in the final, 6–2, 6–4 to win the women's singles tennis title at the 2016 Madrid Open.
Petra Kvitová defeated Dominika Cibulková in the final, 6–1, 6–1 to win the singles tennis title at the 2016 Wuhan Open. It was her second Wuhan Open title.
Caroline Garcia was the defending champion, but lost in the semifinals to Anastasija Sevastova in a rematch of the previous year's final.
Sloane Stephens defeated Jeļena Ostapenko in the final, 7–6(7–5), 6–1 to win the women's singles tennis title at the 2018 Miami Open. It was Stephens' sixth career singles title, first Premier Mandatory title, and first title since winning the US Open back in September. By virtue of her victory, Stephens also made her debut in the Top 10, at No. 9.
Simona Halep defeated Sloane Stephens in the final, 7–6(8–6), 3–6, 6–4 to win the women's singles tennis title at the 2018 Canadian Open.
Iveta Benešová (qualified)
Monica Niculescu (qualifying competition, lucky loser)
Maret Ani (first round)
Yanina Wickmayer (qualified)
Anne Keothavong (first round)
Julia Görges (qualifying competition)
Bethanie Mattek (qualified)
Alicia Molik (first round)
Olga Puchkova (qualifying competition)
Lourdes Domínguez Lino (first round)
Melinda Czink (first round)
Tatiana Poutchek (first round)
Roberta Vinci (first round)
