Garbine Muguruza, Eugenie Bouchard and Madison Keys continued their excellent starts to 2020 in Shenzhen, Auckland and Brisbane.
Barty advanced to the semi-finals of the WTA Finals with a straight-sets win over Kvitova, while Bencic progressed when Bertens retired.
Elina Svitolina beat Simona Halep in straight sets in confident style to book her place in the semi-finals at the WTA Finals in Shenzhen.
Belinda Bencic withstood a second-set fightback from Petra Kvitova to earn a vital win that keeps her in the running at the 2019 WTA Finals.
Kim Clijsters will not have any restriction in the number of wildcards she receives. But she also deserves more in her upcoming third stint on the...
Simona Halep continued her impressive progress at Wimbledon 2019 with a comfortable straight-sets win over teen sensation Cori Gauff.
Simona Halep showed she is a dangerous player in the Wimbledon draw with an emphatic straight-sets win over Victoria Azarenka.
Karolina Pliskova maintained her superb form with a comfortable straight sets victory over Kerber in the Nature Valley International final.
Karolina Pliskova thrashed Kiki Bertens in Eastbourne to gain revenge for the Dutchwoman's defeat of her at Wimbledon last year.
Ashleigh Barty, Serena Williams and Angelique Kerber face a tough time at Wimbledon after they were all drawn in the same quarter.
Kiki Bertens will play Karolina Pliskova in the semi-finals at Eastbourne after she beat Aryna Sabalenka for the fourth time in a row.
Angelique Kerber played some superb tennis to beat Simona Halep in a high-quality quarter-final in Eastbourne.
Simona Halep talked about her desire to improve on grass, her change in perspective and her matches at Eastbourne.
Karolina Pliskova talked about her form on grass, her confidence on court and her improved fortunes since she hired Conchita Martinez.
Ons Jabeur and Alize Cornet will meet in the quarter-finals of the Nature Valley International after an extraordinary sequence of events.
Simona Halep made an ideal start to her grass-court season by crushing Hsieh Su-Wei 6-2 6-0 in the second round in Eastbourne.
Elina Svitolina suffered her fifth loss in seven matches since her return to the WTA tour following a knee injury when she lost to Alize Cornet.
Caroline Wozniacki started her bid for a third title in Eastbourne with a win, while Pliskova, Ostapenko and Vondrousova also secured victories.
Ashleigh Barty won the Nature Valley Classic and went to World No.1 by beating Julia Goerges in a high-quality final.
Ashleigh Barty will become the World No.1 if she beats doubles partner Julia Goerges in the Nature Valley Classic final in Birmingham.