IndyCar will have 17 races next season and two new venues as part of a 2015 schedule that begins on a street course in Brazil in March and wraps up at the end of August on the road course at Sonoma.
Cara Black and Sania Mirza cruised to the doubles title at the WTA Finals with an authoritative 6-1, 6-0 win over defending champions Peng Shuai and Hsieh Su-Wei on Sunday.
Serena Williams is in the final of the WTA Finals after beating Caroline Wozniacki in a third-set tiebreaker on Saturday, winning 2-6, 6-3, 7-6 (6) to remain on course for a third-straight title in the season-ending championships.