Hyper inflating of pros speeds (vs. local park rec guy) is boring stuff in that the data is *really measured* at some major events.
Yes, that data is measured. Here, for example, are the maximum first and second serve speeds of every man who played on a court with a gun on the first day of USO 2013:
Ryan Harrison: first serve, 137 , second serve 105
Rafael Nadal: first serve 121, second serve 97
Richard Gasquet: first serve 127, second serve 103
Michael Russell first serve 125, second serve 99
Nick Kyrgios: first serve 129, second serve 124
David Ferrer: first serve 121, second serve 99
Albert Ramos: first serve 124, second serve 111
Bernard Tomic: first serve 124, second serve 93
Fernando Verdasco: first serve 138, second serve 117
Ivan Dodig: first serve 133, second serve 108
Pablo Cuevas: first serve 129, second serve 110
Janko Tipsarevic: first serve 124, second serve 103
Tommy Robredo: first serve 130, second serve 103
Marinko Matosevic: first serve 122, second serve 101
Dan Evans: first serve 129, second serve 118
Kei Nishikori first serve 118, second serve 95
Kenny De Schepper first serve 135, second serve 135
Bradley Klahn first serve 125, second serve 105
So the serve speed maxes for this group of ATP men would be: First serve 118 MPH to 137 MPH, Second serve 93 to 135 MPH.
I'm not sure about that 135 mph second serve-- but the bottom line is that speedmaster guy's data seems to be totally of touch with reality. It looks to me like ATP men break 120 very routinely and 130 not infrequently.
So my question is, why would you take this "hard data" about ATP serve speeds seriously, when the most minimal examination of actual data from the tour itself shows that it is wrong?