if you're a player, among the things you always want to know are: where should i be serving and what speeds do i need to hit to be able to serve an ace? you also want to know what side your opponent is stronger on, where they serve on certain big points, and how they position themselves on the court. it's thought by looking at all these stats and really drilling into the information that is provided, tactics and strategies, movement, shots and ball speeds can all be fine—tuned, and you can get as close to winning as possible. and someone who certainly knows a thing or two about winning is billiejean king. with 39 grand slam titles, she is a legend of the game. how much of a better player do you think you may have been if you'd had access to this? gasps so much better. i was very adaptable and i could learn quickly if someone showed me something, and i loved challenges. so adaptable, you can set it up any way you want. you can find out about your rpms, how much spin on the ball, you can find out trajectory,