The fastest ever serve recorded; 251 Km/h, was by Ivo Karlovic.
Andy Roddick around 243 Km/hr vs some Thai Player in London.
Because it is
Rafael Nadal.
echizen ryoma
No. The interior lines (half-lines) on tennis courts determine the service court, into which the serve must be made. An ACE is any legal serve that is not successfully returned by the opponent, winning the point for the server.
Badminton is... not tennis
Aaron Savannah
I am not sure but just call your local tennis place
Serena Williams Venus Williams
Andy Roddick at 166.3 MPH
Jai-alai