It's been about 20 years for me. I think I was 41 last time I played. I was working in Pennsylvania and a young guy in the office wanted to play at the local Y. He was 22 and pretty athletic so I told him he would catch on pretty quickly. I took it easy on him and tried to teach him not to chase the ball.
After we had played nearly every day for a couple of weeks and I was letting him score enough points to keep him interested but never enough to risk losing, he goes to the office and starts bragging that I had been playing for 20 years and he had been playing for 2 weeks and he was going to beat me soon.
That afternoon we went to play and the scores were 21-0, 21-1, 21-2. I was getting tired toward the end and the 3 points he got were due to my mistakes on easy shots.
The next morning after our meeting I told the entire office to ask him about our racquetball game yesterday. We never played again.