Lu Jingjing was the defending champion, but lost to the 3rd seeded Tetiana Luzhanska in the first round.
Simona Halep defeated Karolína Plíšková in the final, 6–4, 7–6(7–4) to win the women's singles tennis title at the 2015 Dubai Tennis Championships.
Two-time defending champion Serena Williams defeated Carla Suárez Navarro in the final, 6–2, 6–0 to win the women's singles tennis title at the 2015 Miami Open. It was her record-extending eighth Miami Open title.
Karolína Plíšková defeated Angelique Kerber in the final, 6–3, 6–1 to win the women's singles tennis title at the 2016 Cincinnati Masters. It was her sixth WTA Tour singles title.The two would play each other three weeks later, in the final of the US Open; Kerber would avenge her loss by beating Plíšková in three sets.
Jelena Janković was the defending champion, but chose to participate in Florianópolis instead.
Venus Williams was the defending champion, but chose to compete in St. Petersburg instead.
Duan Yingying was the defending champion, but lost in the first round to Arina Rodionova.
Lesia Tsurenko was the defending champion, but lost in the first round to Aleksandra Krunić.
Kristýna Plíšková was the defending champion, but lost in the second round to Kurumi Nara.
Maria Sharapova defeated Aryna Sabalenka in the final, 7–5, 7–6(10–8) to win the singles tennis title at the 2017 Tianjin Open. It was Sharapova's first title since serving a suspension for a doping offense, and her final career title before retiring in 2020.
Christina McHale and Peng Shuai were the defending champions, but Peng chose not to participate this year. McHale played alongside Lauren Davis, but lost in the first round to Kateryna Bondarenko and Alla Kudryavtseva.
The 2018 Taiwan Open was a women's tennis tournament played on indoor hard courts. It was the third edition of the event and part of the WTA International tournaments of the 2018 WTA Tour.
Tímea Babos was the defending champion, but lost in the second round to Mona Barthel.
Anastasia Pavlyuchenkova was the defending champion, but withdrew before the tournament began.
Peng Shuai was the defending champion, but withdrew before the tournament began.
Madison Keys was the defending champion, but withdrew due to a wrist injury.
Zhang Shuai was the defending champion, but she withdrew before her first round match against Wang Yafan.
Elise Mertens was the two-time defending champion but chose to compete in Sydney instead. Sofia Kenin won her first WTA Tour singles title without dropping a set. She defeated Anna Karolína Schmiedlová in the final, 6–3, 6–0.
Bianca Andreescu defeated Angelique Kerber in the final, 6–4, 3–6, 6–4 to win the women's singles tennis title at the 2019 Indian Wells Open. It was her first WTA Tour title, and she became the first wildcard champion in tournament history, as well as the youngest champion since Serena Williams in 1999. This marked the second consecutive year where a player won the tournament as her first WTA singles title.
Elise Mertens and Aryna Sabalenka defeated Barbora Krejčíková and Kateřina Siniaková in the final, 6–2, 6–3, to win the women's doubles tennis title at the 2021 Australian Open. It was their second major doubles title as a team, after the 2019 US Open. With the win, Sabalenka claimed the world No. 1 doubles ranking.
Tímea Babos 
Kateryna Kozlova 
