Former professional tennis player, Rennae Stubbs, and IBM’s Elizabeth O’Brien look at the importance of the first serve in women’s tennis at the US Open. For the women’s semifinalists, it’s interesting to note the significant drop in second serve points won compared to first serve points won. These players go from a high probability of winning a point to a coin toss if they will or not on second serve. We’ll be watching how the players serve as the pressure mounts in the women’s semifinals. Learn more at: http://gamechangersibm.tumblr.com/.
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