On the USTA rating scale, I'm a 4.0-4.5 player. I'm 41 and started hitting a ball against the wall when I was around 9. My best years were probably ages 24-26 when I hooked up with a player who had been ranked No. 8 in singles and No. 1 in doubles in one of the USTA sections and played him 3-4 times weekly. After three years and many 6-0, 6-1 drubbings, I finally began to beat him (I improved enormously playing him, and brought his game down a few levels!) I also played well in my late 20s-early 30s when I was in superb shape. I'd be a 4.5 player today, but I've gained about 15-20 pounds extra, which hurts my movement (always my best asset on the court!) Great questions -- I love to talk with people who actually play the game.