TOURNAMENT SURFACE DEFENDING CHAMPION Ameritech Cup Chicago Oct. 28-Nov.3 Supreme indoors Magdalena Maleeva Kremlin Cup Moscow Oct. 28-Nov.3 Supreme indoors Magdalena Maleeva Bank of West Classic Oakland, Calif. Nov. 4-10 Supreme indoors Magdalena Maleeva Advanta Championship Philadelphia Nov. 11-17 Supreme indoors Steffi Graf P&G Taiwan Open Taipei, Taiwan Nov. 11-17 Hard/outdoors Barbara Paulus WTA Tour Championships New York Nov. 18-24 Supreme indoors Steffi Graf