From 30 April to 5 May 2018
Prague
Prague / WTA International / 250,000 $
Kvitova P
Rabat
Rabat / WTA International / 250,000 $
Mertens E
Anning
Anning / WTA125 / 115,000 $
Khromacheva I
From 5 May to 12 May 2018
Madrid
Madrid / WTA Premier / 3,671,405 €
Kvitova P
From 14 May to 20 May 2018
Rome
Rome / WTA Premier / 2,440,070 €
Svitolina E
From 20 May to 26 May 2018
Nuremberg
Nuremberg / WTA International / 250,000 €
Strasbourg
Strasbourg / WTA International / 250,000 €
From 27 May to 10 June 2018
Geneva 
Strasbourg 
00:44 
vs 
vs 
Titles 2018