hey im 6'2 got mine cloakced at local tennis club ...higest i got is 95 miels per hour ...but hey i only started playing tennis like about a year back ......coudnt get one in for liek the first 5 months ..just improved over the last few months
I turned 15 about 2 months ago and i think i have a big serve for my age and rating , i measure its speed with a speed gun which is highly accurate. i hit 10 serves and then average it out, ( it's the best way to do it, try it).
Average = around 90mph , i can top spin it in at about 765mph - 85mph
MPH , but of course i warmed up first . lol. , ps. all these serves were in .