Garbiñe Muguruza denied Simona Halep's third bid to take the No.1 ranking with a dominant victory in the final of the Western & Southern Open.
No.2 seeds Chan Yung-Jan and Martina Hingis survived a stern test from Hsieh Su-Wei and Monica Niculescu to capture a sixth title of the year at the Western & Southern Open.
Martina Hingis and Chan Yung-Jan were on opposite sides of the net at last year's BNP Paribas WTA Finals Singapore presented by SC Global, but have won five titles since pairing up in February and aim for a strong finish to the 2017 season in Singapore.
Ekaterina Makarova and Elena Vesnina ended the 2016 season with their first BNP Paribas WTA Finals Singapore presented by SC Global title. The reigning Olympic and Wimbledon champions caught up with WTA Insider after sealing a Singapore berth for a fifth straight year.
WTA Insider caught up with Elina Svitolina after her historic third win at the Premier 5 level, while Ekaterina Makarova and Elena Vesnina became the first team to ever capture the Canadian double in Toronto.
Elina Svitolina nabbed her fifth WTA title of the season at the Rogers Cup in Toronto - and did something no WTA player had done before in the process.
Elina Svitolina conquers Caroline Wozniacki in their second Premier 5 final of the season, winning the last eight games of their final on Sunday to take home her first title at the Rogers Cup in Toronto.
Wimbledon champions Ekaterina Makarova and Elena Vesnina reached the final at the Rogers Cup on Saturday, rising to No.1 in the Porsche Race to Singapore in the process.
Defending champions Ekaterina Makarova/Elena Vesnina and new partners Chan Yung-Jan/Martina Hingis become the first two teams to qualify for the 2017 WTA Finals.
With the first week of the North American summer in the books, which players are pushing towards the elite in the Porsche Race to Singapore? Read on to find out.