i think average speed of her serve is about 104 mph
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.
Considering there are more sucky players than good players, the average would be about 65.
It depends on how hard you want to hit the ball
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
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
only way is radar..
In tennis, the average speed of a serve for a man can range from from 70mph up to the world record of 163.7 mph. A pro would average in the high end, 120-130mph.As of March 2014, the fastest professional serve speed for a man is held by Samuel Groth at 163.7mph (263.4 km/h). This was set at the 2012 Busan Open Challenger Tennis.Additionally, other top speed servers include:Milos RaonicAkbano OlivettiIvo KarlovicJerzy JanowiczJohn IsnerAndy RoddickTaylor DentBenjamin BeckerHeight does seem to play a factor in how fast a player can serve the ball.
The average speed is between 30 and 40.