I'm just curious how much pace the TW members can put behind their tennis serve. Now I know not many people have access to a radar gun. What one can do is have their tennis partner use a stop watch to count the time that goes by from impact with the racquet to impact on the first bounce. At this point, one will measure the distance from the serve impact to the first bounce. Then you need to convert feet per second to miles per hour. I did it, and came up with approximately 98 mph. Very happy with that!:D If you don't feel like going through all the trouble, just guess what you believe your serve to be.