Garbiñe Muguruza defeated Timea Bacsinszky in the final, 7–5, 6–4 to win the women's singles tennis title at the 2015 China Open. It was her first WTA Premier Mandatory level-tournament and second WTA Tour title overall, and she became the first Spanish player to win a Premier Mandatory tournament.
Maria Sharapova was the defending champion, but withdrew before her first match due to a wrist injury.
Carla Suárez Navarro defeated Jeļena Ostapenko in the final, 1–6, 6–4, 6–4 to win the singles tennis title at the 2016 WTA Qatar Open.
Victoria Azarenka defeated Serena Williams in the final, 6–4, 6–4 to win the women's singles tennis title at the 2016 Indian Wells Masters.
Agnieszka Radwańska defeated Johanna Konta in the final, 6–4, 6–2 to win the women's singles tennis title at the 2016 China Open.
Victoria Azarenka was the defending champion, but could not compete after announcing her pregnancy in July 2016.
Garbiñe Muguruza defeated Simona Halep in the final, 6–1, 6–0 to win the women's singles tennis title at the 2017 Cincinnati Masters. By losing in the final, Halep failed to take advantage of her third opportunity in 2017 to take over the WTA No. 1 singles ranking when the top ranking was only one match win away.
Caroline Garcia defeated Simona Halep in the final, 6–4, 7–6(7–3) to win the women's singles tennis title at the 2017 China Open. As of 2019, Garcia is the only player to win singles titles in both Wuhan and Beijing in the same year.
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.
Laura Siegemund was the defending champion, but lost in the second round to CoCo Vandeweghe.
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.
Kiki Bertens defeated Simona Halep in the final, 2–6, 7–6(8–6), 6–2 to win the women's singles tennis title at the 2018 Cincinnati Masters. En route to her first hard court & Premier 5-level title, Bertens defeated the world No. 2 & No. 1 players, in the second round and final, respectively. She became the first Dutchwoman to win the title.
Elina Svitolina was the defending champion, but lost to Aliaksandra Sasnovich – in a repeat of the previous year's final – in the second round.
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 Andreescu became the first wildcard champion in the tournament's 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 Tour singles title.
Ashleigh Barty defeated Karolína Plíšková in the final, 7–6(7–1), 6–3 to win the women's singles tennis title at the 2019 Miami Open. It was Barty's first WTA Premier Mandatory title. She entered the top 10 in the WTA rankings for the first time with the win.
Simona Halep defeated Elena Rybakina in the final, 3–6, 6–3, 7–6(7–5) to win the women's singles tennis title at the 2020 Dubai Tennis Championships. Halep saved a match point en route to the title, against Ons Jabeur in the second round.
Garbiñe Muguruza defeated Barbora Krejčíková in the final, 7–6(8–6), 6–3 to win the women's singles tennis event at the 2021 Dubai Tennis Championships. Muguruza dropped just one set during the tournament, to Aryna Sabalenka in the quarterfinals.
Aryna Sabalenka defeated Ashleigh Barty in the final, 6–0, 3–6, 6–4 to win the women's singles tennis title at the 2021 Madrid Open. It was her 10th career WTA Tour singles title, and her first on clay.
Elina Svitolina 
Aliaksandra Sasnovich 
