lol
anyway. I agree with whoever it was who said anyone playing their best tennis over 40 wasn't ever very good. I am 45 and I still play in open tournaments. I have changed my game a lot over the years (modern FH now, kick serve etc) but I am a shadow of my youthful self in terms of match play. Sure, if I can GET to the thing I can still play a good shot, maybe in some circumstances a better shot than when I was 25 (I am especially thinking of an open stance inside out FH I never would have thought of then) but the key issue is mobility. I am very fit, and I play a lot, and I KNOW I am nowhere near as quick as I once was, and probably not quite as strong, although that is hard to assess. (is my serve less effective because I don't hit it as hard? or because the courts/balls are slower? I dunno, really!)
However, to Michael I say this, keep trying to beat the buggers!!! Nobody is going to think any less of you if you lose to some guy 20 years your junior and think what it will mean to the kid who pulls it off!
While you are doing that, look into seniors events and play them as well, that;s what I do, still decent tennis only it is played on a level playing field. (ie, we are all a step or two slower)
cheers!