Stosur needed to win 52 percent of rallies

In last year's final, Stosur needed to win 52 percent of louis vuitton outlet store rallies against Williams that ended in two or fewer shots. Not only did she meet the target number, but she exceeded it considerably in both sets. In the first set, Stosur won 63 percent of those rallies and 65 percent in the second. Still, it's going to take more than one IBM Insight in order to increase a player's likelihood of beating Serena, especially the way she is serving. "We identify three IBM Insights for each player before every match, and what is gained on one statistic can just as easily be lost on others," said IBM's Kenneth Jensen, who developed the solution that generates the louis vuitton outlet IBM Insights. Like Wimbledon, Serena's serve has been the most powerful weapon at this year's U.S. Open. She leads the tournament with 41 aces and percent of first-serve points won at 80.6 (104-129). In last year's final, Stosur had to win more than 35 percent of first-serve return points to increase her likelihood of beating Williams. Not only is 35 a high percentage of points to win on an opponents first serve, but consider this: Entering last year's final, Serena's opponents had won just 17 percent of the points on her cheap louis vuitton handbags first serve.