The WTA 1000 Mandatory and non-Mandatory tournaments, which are part of the WTA 1000 tournaments, make up the elite tour for professional women's tennis organised by the WTA called the WTA Tour.
There are four 1000 Mandatory tournaments: Indian Wells, Miami, Madrid and Beijing and five non-Mandatory tournaments: Doha, Rome, Canada, Cincinnati, and Guadalajara, the last of which was held starting this year as a substitute for Wuhan.
[1] Singles – Doubles Singles – Doubles Singles – Doubles Singles – Doubles Singles – Doubles Singles – Doubles Singles – Doubles Singles – Doubles