It's measured because the first serve speed is a very important statistic. The faster a serve is, the harder it is for the opposing player to return. By knowing a person average first serve speed, you can then decide on what kind of strategy you can use to return the serve and win the point
What is being measured is the speed in which the tennis ball is moving. A radar gun, similar to the ones police use for giving out speeding tickets, is used to measure a tennis serve
In volleyball the speed of serve is measured. Speed is measured with radar gun. The best players can serve about 120 - 130km/h.
Jai-alai
i think average speed of her serve is about 104 mph
It depends on how hard you want to hit the ball
65
140
only way is radar..
Men's tennis.
It is hard to determine what the average speed of a tennis serve is from various players, but Sam Qurrey is among the fastest serves of all time. He has recorded a serve of 141 miles per hour at multiple events.
On a professional level, anywhere between 100-130 mph.
Sabine Lisicki ---- 130 Mile/hr,,,,,,, (2009 commonwealth bank)