From 27 kolovoza do 9 rujna 2018
US Open
New York / Grand Slam / 11,800,000 $
Osaka N
From 10 rujna do 16 rujna 2018
Hiroshima
Hiroshima / WTA International / 250,000 $
Hsieh S
Québec
Qu / WTA International / 226,750 $
Parmentier P
From 17 rujna do 23 rujna 2018
Tokyo
Tokyo / WTA Premier / 890,100 $
Pliskova K
Guangzhou
Guangzhou / WTA International / 226,750 $
Wang Q
Séoul
S / WTA International / 226,750 $
Bertens K
From 23 rujna do 29 rujna 2018
Wuhan
Wuhan / WTA Premier / 2,365,250 $
Sabalenka A
From 24 rujna do 29 rujna 2018
Tashkent
Tashkent / WTA International / 226,750 $
Betova M
From 29 rujna do 7 listopada 2018
Pékin
P / WTA Premier / 6,381,679 $
Wozniacki C
Madrid 
Madrid 
12:53 
vs 
vs 
Titles 2018