View Full Version : Serve Speed Measurement

04-20-2004, 03:49 PM
Does anyone know where on the court they measure service speed. I assume right above the net, but wonder if it varies. I say this because air will tend to slow the ball down as soon as it leaves the racket and if they aren't consisent, then numbers are comparable.

04-20-2004, 04:08 PM
if it was measured over the net there wouldnt be many serves over 100...

The only problem with measuring is if youre serving out wide compared to down the line it tends to be more distance so the serve may actually be a bit faster if its out wide.

04-20-2004, 04:54 PM
So, is it measured soon after it leaves the racket, as it crosses the net, or as it bounces in the service court?

04-21-2004, 02:28 PM
After it leaves the racket..


marc tressard
04-23-2004, 04:33 AM
Correct, for once in strikes terra firma the ball speed drops another 30%. Big serves are 75 mph after land fall. This is still lightning quick, but not the inflated 120-130mph we always hear about. So technically, sure, the serve can be 130mph at some point in its journey, though I'd prefer learning the other speed. When you peruse cauto engine specs atthe dalership you see similar facts: Horsepower 200, torque 220 lb feet. The former is usually at 6000rpm, which most dirvers never in their lifetime come close to reaching with their auto shifters. The mystique might lose appeal if we heard that one huge serve was 77 while a lesser server only gets 68 mph.

04-23-2004, 06:38 AM
I believe serve speed is measured 12 feet from when it leaves the racquet

04-23-2004, 09:55 AM
I think the actual device is around 12 feet away from the baseline but the reading is taken as soon as it leaves the racquet!