Would like to know what the average speed of these 2 strokes is on the pro circuit. What average and max speeds are Nadal and Federer, Nalby, Safin, Davydenko, Berdych, Blake, Gasquet etc hitting at. What speeds are the winners at ? Is there any place where such data is compiled ? Are the 2 likely to be very close ? No raves/rants please. Thanks in advance. Edit: I am not considering slices, dropshots, volleys/touch shots at net, and shots where the player deliberately slows pace down.