[QUOTE="So what's you're secret for limbering up to play competitive sports at at least a competent level once you're past 60? What should I be doing this off season to prepare for next year?[/QUOTE]
I am going to be 69 in 2 weeks and am still in pretty decent shape. During the winter I still ski black and some double black mogul runs albeit not as fast as I used to and would like to. I keep in shape by playing 1 to 2 hours of pretty competitive racquetball (B/C level) two to 3 evenings a week. I also lift weights regularly. The RB is great cardio training, especially in singles games. So, go join a club that has RB courts, get a racquet, a glove, and protective eye-wear, and start playing! You will be happy you did!