Kvitova 3rd final for year in Prague

Semi finals in Prague and Rabat were played, as were quarter finals in Estoril, Munich and Istanbul.

Prague 

Petra Kvitova (2) defeated Shuai Zhang (6)

The opening set was a servers delight, with only two games forced to deuce.  Kvitova never faced a break point, while Zhang saved three, two which were set points in the tenth game.

However it was the Chinese number one who set the pace in the tie break, with a 5-1 lead.  Kvitova struck three winners in the next six points, and suddenly had two set points.  On the second, Zhang double faulted, and Kvitova had escaped to lead 7-6(6).

Set two was a quick Czech Mate.  Kvitova hit 15 winners, to add to her 22 for set one, and only surrendered 6 points to Zhang.  The win was finally comprehensive 7-6(6) 6-0.

Petra will play Mihaela Buzarnescu (7) in the final - Mihaela defeated Camilia Giorgi 4-6 6-3 7-5 in an absorbing match taking almost two and a half hours.

Irrespective of the final result, Mihaela will have a new ranking of 32, an improvement from 37 as her new career high.

Rabat

Elise Mertens (1) defeated Su-Wei Hsieh (8) 6-0 6-2 in under an hour

She will play Ajla Tomljanovic for the title

Ajla Tomljanovic defeated Aleksandra Krunic (7) 7-5 6-2

Estoril

Stefanos Tsitsipas defeated Roberto Carballes Baena 6-7(2) 6-2 7-6(3)

He will play Joao Sousa in the semis

Joao Sousa defeated Kyle Edmund (3) 6-3 1-6 6-0

Frances Tiafoe defeated qualifier Simone Bolelli 7-5 6-2

He will play Pablo Carreno Busta in the semis 

Pablo Carreno Busta (2) defeated Nicolas Jarry 6-2 2-6 6-1

Munich 

Sascha Zverev (1) defeated Jan-Lennard Struff 6-3 6-2

He will play Hyeon Chung in the semis 

Hyeon Chung (4) defeated qualifier Martin Klizan 6-3 6-4

Maximilian Marterer defeated Martin Fucsovics 6-3 6-4

He will play Philipp Kohlschreiber in the semis 

Philipp Kohlschreiber (6) defeated Roberto Bautista Agut (2) 6-4 6-4

Istanbul 

Malek Jaziri defeated Jiri Vesely (7) 3-6 6-4 6-1

He will play Laslo Djere in the semis 

Laslo Djere defeated Paolo Lorenzi (5) 6-7(5) 7-5 7-6(3)

Taro Daniel defeated Rogerio Dutra Silva 1-6 6-1 6-4

He will play Jeremy Chardy in the semis

Jeremy Chardy defeated Thomas Fabbiano 6-2 6-2