In many sports including basketball, baseball, soccer, football, boxing, etc many of the best players have had amazing seasons if not there best seasons past the age of 30. Michael Jordan was a better player in his early 30's than when he was in his mid 20's. Kobe is way better now than when he was in his early or mid 20's. Most baseball players put ther best numbers in there early thirties. Manny Pacquiao is at his best right now. Barry Sanders rushed for over 2000 yards as a 29 year old and had another amazing year as a 30 year old. Many other NFL greats have had amazing or even ther best seasons at or over the age of thirty. The point is none of these surfaces are nearly as rough on the body as a tennis hardcourt. Even many of the cushioned hardcourts are still way harder than a wood floor basketball court, or natural grass surfaces of baseball, soccer, football etc. I love the true and more consistent and predictable bounce of hardcourts as compared to grass or clay but wonder if more of the tournaments were played on grass and clay if tennis players would have longer careers? If so is it worth switching some of the tournaments in order to extend the longevity of tennis players?