Where: Singapore
When: October 25 - November 01, 2015
More: Annual season-ending championship for the Women's Tennis Association, with round-robin pool play and elimination rounds for the eight top-ranked singles players and doubles.
Fun Fact: This will be the 45th edition of the singles competition, and the 40th for doubles. USA's Serena Williams is the defending champion from 2014, and would have been the favorite had she not withdrawn with injury.
Official: http://www.wtafinals.com