matchpoint54
Rookie
I'm a 14 year old freshman, who plays varsity tennis, and also tournaments regularly. The problem is that I'm not that tall at 5'2 and about 90 lbs. I can return a lot of first serves and rarely get aced, but I'm looking to serve harder. My first serve slice is pretty consistent, and I've got a decent kick serve. But I'm curious to see how hard should an average 14 year old 4.0 player serve?