DateTournamentSurfaceWinner
01 Jan Auckland hard Davis Lauren
01 Jan Shenzhen hard Siniakova Katerina
01 Jan Brisbane hard Pliskova Karolina
09 Jan Hobart hard Mertens Elise
09 Jan Sydney hard Konta Johanna
16 Jan Australian Open hard Williams Serena
30 Jan Taiwan Open hard Svitolina Elina
30 Jan St. Petersburg indoor hard Mladenovic Kristina
13 Feb Doha hard Pliskova Karolina
20 Feb Budapest indoor hard Babos Timea
20 Feb Dubai hard Svitolina Elina
27 Feb Acapulco hard Tsurenko Lesya
27 Feb Kuala Lumpur hard Barty Ashleigh
06 Mar Indian Wells hard Vesnina Elena
20 Mar Miami hard Konta Johanna
03 Apr Monterrey hard Pavlyuchenkova Anastasia
03 Apr Charleston clay Kasatkina Daria
10 Apr Bogota clay Schiavone Francesca
10 Apr Lugano clay Vondrousova Marketa
24 Apr Stuttgart clay Siegemund Laura
24 Apr Istanbul clay Svitolina Elina
01 May Prague clay Barthel Mona
01 May Rabat clay Pavlyuchenkova Anastasia
08 May Madrid clay Halep Simona
15 May Rome clay Svitolina Elina
22 May Strasbourg clay Stosur Samantha
22 May Nurnberg clay Bertens Kiki
29 May Rolan Garros clay Ostapenko Jelena
12 Jun Hertogenbosch grass Kontaveit Anett
12 Jun Nottingham grass Vekic Donna
19 Jun Mallorca grass Sevastova Anastasija
19 Jun Birmingham grass Kvitova Petra
26 Jun Eastbourne grass Pliskova Karolina
03 Jul Wimbledon grass Muguruza Garbine
17 Jul Lausanne clay Bertens Kiki
17 Jul Iasi clay Begu Irina-Camelia
24 Jul Nanchang hard Peng Shuai
24 Jul Bastad clay Doi Misaki
31 Jul Washington hard Makarova (1996) Ekaterina
31 Jul San Jose clay Keys Madison
07 Aug Toronto hard Svitolina Elina
14 Aug Cincinnati hard Muguruza Garbine
21 Aug New Haven hard Saville Daria
28 Aug US Open hard Stephens Sloane
11 Sep Quebec indoor hard Van Uytvanck Alison
11 Sep Hiroshima hard Diyas Zarina
18 Sep Guangzhou hard Zhang Shuai
18 Sep Seoul hard Ostapenko Jelena
18 Sep Tokyo hard Wozniacki Caroline
25 Sep Tashkent hard Bondarenko Kateryna
25 Sep Wuhan hard Garcia Caroline
02 Oct Pekin hard Garcia Caroline
09 Oct Linz indoor hard Strycova Barbora
09 Oct Hong Kong hard Pavlyuchenkova Anastasia
09 Oct Tianjin hard Sharapova Maria
16 Oct Luxembourg indoor hard Witthoeft Carina
16 Oct Moskow indoor hard Goerges Julia
22 Oct WTA Finals indoor hard Wozniacki Caroline
30 Oct Zhuhai indoor hard Goerges Julia