Google Andy Roddick; he has the fastest serve right now at 157 (I think) mph. It might be on a tape or CD of the tournament he accomplished it in.
Andy roddick
Aaron Savannah
Jai-alai
The fastest ever serve recorded; 251 Km/h, was by Ivo Karlovic.
The fastest 1st serve was recorded by Andy Roddick at 155 MPH (248KPH), the fastest second serve is also held by Andy Roddick at 153 MPH (245 KPH). In the women's game the fastest serve is held by Venus Williams at 129 MPH (206 KPH).
I held by a guy called Aaron Savannah.
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.
Venus Williams 2007 US Open 129 Mph or 208 km/h
Andy Roddick 153 mph June 11 2004
The fastest recorded speed for a ball in competition is 131 mph (211 km/h) from a tennis serve hit by Samuel Groth in 2012.
The fastest serve ever recorded at the Wimbledon Championships was 148 mph, achieved by Taylor Dent in 2010.
The fastest non-mechanized sport in the world is ski racing or speed skiing. Second would be a tennis serve. The speeds reached in speed skiing are approximately 162 mph, and 262 kph