From 1 jaanuar to 7 jaanuar 2018
Brisbane
Brisbane / WTA Premier / 1,000,000 $
Svitolina E
Shenzhen
Shenzhen / WTA International / 750,000 $
Halep S
Auckland
Auckland / WTA International / 250,000 $
Goerges J
From 7 jaanuar to 13 jaanuar 2018
Sydney
Sydney / WTA Premier / 799,000 $
Kerber A
Hobart
Hobart / WTA International / 250,000 $
Mertens E
From 15 jaanuar to 27 jaanuar 2018
From 29 jaanuar to 4 veebruar 2018
Taiwan
Taipei / WTA International / 250,000 $
Babos T
From 31 detsember to 6 jaanuar 2018
Brisbane
Brisbane / WTA Premier / 1,000,000 $
Madrid 
Madrid 
12:52 
vs 
vs 
Wozniacki C
Kvitova P
Titles 2018