Originally Posted by UCSF2012
Swings are at 60-70%, which means you're playing careful. Guiding the ball into the court. That works now for HS tennis, until you meet stronger college guys. You're also serving at 60-70% effort, which is why you're getting 60mph serves.
Hey guys thanks for the tips but I've been improving on them a lot
btw I played a match and the place shows serve speeds... my first serves are around 90-110 mph. Second 60-85 depending on what I want to do