High seeds Daniil Medvedev and Ashleigh Barty are among the many huge names by to the quarter-finals in Cincinnati.
Russian world quantity two Medvedev beat Bulgaria’s Grigor Dimitrov 6-3 6-3.
He extends his successful streak to seven matches, having received the Canadian Open title on Sunday.
Within the girls’s event, Australia’s world primary and up to date Wimbledon winner Barty stormed previous Belarus’ defending champion Victoria Azarenka 6-0 6-2.
The Czech Republic’s Barbora Krejcikova beat Spain’s 2017 champion Garbine Muguruza 6-1 6-7 (5-7) 6-2, whereas Germany’s two-time Grand Slam champion Angelique Kerber can be by to the final eight, marking her tenth Cincinnati look with a 4-6 6-2 7-5 win over Latvia’s Jelena Ostapenko.
Czech eleventh seed Petra Kvitova later defeated Tunisia’s Ons Jabeur 6-1 6-2.
Within the males’s draw, German third seed Alexander Zverev progressed with a 6-2 6-3 win over Argentine Guido Pella, whereas Spain’s seventh seed Pablo Carreno Busta defeated ninth seed Hubert Hurkacz 7-6 (8-6) 7-6 (7-3) to arrange a quarter-final conflict with Medvedev.
Benoit Paire of France beat American John Isner 7-6 (7-1) 6-7 (2-7) 6-1, however French compatriot Gael Monfils was toppled 7-6 (7-2) 7-6 (7-5) by Russian fourth seed Andrey Rublev.