Indo-Swiss pair of Sania Mirza and Martina Hingis have secured the Year-End Women's Tennis Association (WTA) number one doubles ranking today. The duo also received a trophy in acknowledgment of their superb feat. Sania and Martina, as a pair, have won 8 titles this season, with two Grand Slam titles the Wimbledon and US Open, five WTA Premier titles, and one WTA International title.The pair also reached their 10th final of the year together today. The number one pair, stormed into Final of the year-ending WTA Finals in Singapore. The duo, defeated the third placed Chinese Taipei duo of Chan Hao-ching and Chan Yung-jan, 6-4, 6-2 in the semi finals. With this win, the Indo-Swiss pair of Mirza-Hingis improved their winning streak to 21 matches.