Madison Keys was the defending champion, but withdrew with a wrist injury before the tournament began.
Elina Svitolina defeated Caroline Wozniacki in the final, 6–4, 6–0 to win the women's singles tennis title at the 2017 Canadian Open. It was her third consecutive Premier 5 title, making her the first woman to win the first three Premier 5 tournaments in a season, as well as the first to win three consecutive Premier 5 tournaments since Wozniacki won Montreal and Tokyo in 2010 and Dubai in 2011. This was also Wozniacki's sixth consecutive loss in a final in 2017, making her the first to lose that many finals in a row in one season, as well as the first woman to lose six finals in a single season since Maria Sharapova in 2012.
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 Ashleigh Barty in the final, 6–7(3–7), 7–6(7–4), 6–2 to win the singles tennis title at the 2017 Wuhan Open.
Angelique Kerber defeated Serena Williams in the final, 6–3, 6–3 to win the ladies' singles tennis title at the 2018 Wimbledon Championships. It was her first Wimbledon title and her third and final major singles title overall. She became the first German to win the title since Steffi Graf in 1996. She lost only one set during the tournament, to Claire Liu in the second round. Williams was attempting to equal Margaret Court's all-time record of 24 major singles titles, and to become the first mother to win a major singles title since Kim Clijsters won the 2011 Australian Open.
Naomi Osaka defeated Serena Williams in the final, 6–2, 6–4 to win the women's singles tennis title at the 2018 US Open. It was her first major title, and she lost only one set en route. Osaka became the first Japanese player to win a major singles title. Following the win, Osaka made her top 10 rankings debut. Williams was attempting to equal Margaret Court's all-time record of 24 major singles titles, and to set a new Open Era record by winning a seventh US Open singles title.
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.
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. She saved a championship point en route to her first hard court and Premier 5-level title, and defeated the world No. 2 and No. 1 players, in the second round and final, respectively. Bertens became the first Dutchwoman to win the title.
Naomi Osaka defeated Petra Kvitová in the final, 7–6(7–2), 5–7, 6–4 to win the women's singles tennis title at the 2019 Australian Open. It was her first Australian Open title and her second major title overall. With the win, Osaka became the world No. 1 and became the first player since Jennifer Capriati to win their first two major titles at consecutive events. Ten players were in contention for the world No. 1 ranking. In addition to Kvitová, Osaka, and reigning world No. 1 Simona Halep, Sloane Stephens, Karolína Plíšková, Angelique Kerber, Elina Svitolina, Kiki Bertens, Aryna Sabalenka and Daria Kasatkina were also in contention for the top spot.
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.
Ashleigh Barty defeated Markéta Vondroušová in the final, 6–1, 6–3 to win the women's singles tennis title at the 2019 French Open. It was her first major singles title, making her the first Australian to win a French Open singles title since Margaret Court in 1973 and the first to win any major singles title since Samantha Stosur at the 2011 US Open.
Simona Halep defeated Serena Williams in the final, 6–2, 6–2 to win the ladies' singles tennis title at the 2019 Wimbledon Championships. It was her first Wimbledon title and second major title overall. The final lasted only 56 minutes, and Halep committed a major-final record of just three unforced errors. She lost only one set during the tournament, to Mihaela Buzărnescu in the second round. Halep became the first Romanian to win a Wimbledon senior singles title. Williams was attempting to equal Margaret Court's all-time record of 24 major singles titles. At 37 years and 291 days, Williams became the oldest major women's singles finalist in the Open Era.
Sofia Kenin defeated Garbiñe Muguruza in the final, 4–6, 6–2, 6–2 to win the women's singles tennis title at the 2020 Australian Open. It was her first major title. Kenin was the youngest Australian Open finalist since Ana Ivanovic and the youngest champion since Maria Sharapova, both in 2008. This was the first Australian Open final in the Open Era to be contested between two players ranked outside the top ten, and the first such major final since the 2018 US Open. Kenin entered the top 10 in rankings for the first time by winning the title.
Aryna Sabalenka defeated Petra Kvitová in the final, 6–3, 6–3 to win the singles tennis title at the 2020 WTA Qatar Open.
Naomi Osaka defeated Jennifer Brady in the final, 6–4, 6–3 to win the women's singles tennis title at the 2021 Australian Open. It was her second Australian Open title and fourth major title overall. With the win, Osaka extended her winning streak to 21 matches, dating to the 2020 Cincinnati Open. She only lost one set during the tournament, to Garbiñe Muguruza in the fourth round; she also saved two match points in that match, making her the eighth woman to win the Australian Open after saving match points. Osaka became the third player in the Open Era, after Monica Seles and Roger Federer, to win their first four major finals.
Defending champion Ashleigh Barty won the women's singles tennis title at the 2021 Miami Open after Bianca Andreescu retired from the final with the scoreline at 6–3, 4–0. Barty saved a match point en route to the title, in the second round against Kristína Kučová.
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.
Ashleigh Barty defeated Jil Teichmann in the final, 6–3, 6–1 to win the women's singles tennis title at the 2021 Cincinnati Masters. Barty did not drop a set en route to her first Cincinnati Masters title. It was her fifth and last title of the season, her third WTA 1000 title, and her 13th career WTA Tour singles title.
Paula Badosa defeated Barbora Krejčíková in the final, 6–3, 4–6, 7–6(7–4) to win the women's singles tennis title at the 2022 Sydney Tennis Classic. Krejčíková reached the final after having saved seven match points in her semifinal match against Anett Kontaveit.
Iga Świątek defeated Naomi Osaka in the final, 6–4, 6–0 to win the women's singles tennis title at the 2022 Miami Open. She became the fourth woman in history to complete the Sunshine Double in singles, having won Indian Wells two weeks earlier. It was Świątek's first Miami Open title, her third consecutive WTA 1000 title, and her fourth WTA 1000-level title overall. Świątek became the first woman in history to win the first three WTA 1000 titles of the year in succession, the first player since Serena Williams in 2013 to win three consecutive WTA 1000 titles, and extended her winning streak to 17 matches. She lost no sets and just 26 games en route to the title, the fewest since Martina Hingis dropped 21 games in 2000; she was the first player to win the title in Miami without dropping a set since Azarenka in 2016. Additionally, Świątek won Miami exactly 10 years after fellow Polish tennis player Agnieszka Radwańska won the tournament in 2012.
Ashleigh Barty 
Garbiñe Muguruza 
