As a little background I have been playing tennis for over 55 years and have been ranked in every USTA section I played in and am currently nationally ranked. I am sure we have all heard that clay courts are better to play on than hard courts due to fewer injuries. In one sense when I play on clay courts I do not feel quite as sore when I am finished, but I have experienced more injuries on clay than hard. For example due to longer matches I have had to stop due to cramps and have fallen down more leading to more scraps and pain. One could say that I am not in shape and that lead to cramps and that I have fallen down since I am not use to playing on clay. I will agree with the possibility of the second, but not the first. My experience is that clay court matches go longer and thus it put a premium on conditioning, but what about all clay court players? I am wondering if cramps, scraps and pain are counted when comparing clay court and hard court injuries? Also when I look at tournament draws I sense that if anything there are more withdrawals due to injuries in clay court tournaments than hard court tournaments. Would that be a good comparison? Does anyone have any hard numbers on this or comments on the injury potential of clay vs hard courts?