2018 WTA Premier Mandatory and Premier 5 tournaments

The WTA Premier Mandatory and Premier 5 tournaments, which are part of the WTA Premier tournaments, make up the elite tour for professional women's tennis organised by the WTA called the WTA Tour. There are four Premier Mandatory tournaments: Indian Wells, Miami, Madrid and Beijing and five Premier 5 tournaments: Doha, Rome, Canada, Cincinnati and Wuhan.

Results
{{Legend|#ddfddd|text= * |First-time champion}}