The four players in the White Group, Agnieszka Radwanska, Karolina Pliskova, Garbine Muguruza and last-minute qualifier Svetlana Kutznetsova, all play their opening matches on Monday.
Singapūrā WTA sezonas noslēguma turnīrs notiek trešo reizi, un paredzams, ka tas tur risināsies vēl vismaz gadu.