Ok, I can't disagree with this. Thanks for the input. I guess the only thing for me to do is to find a USTA 3.0 league to play in. (Or get good enough to play in a USTA 3.5 or 4.0 league, because there don't seem to be any USTA 3.0 singles leagues in my immediate vicinity. The overwhelming majority of USTA rated players in Broward County are 4.0 and 4.5, it seems, and in communities outside Fort Lauderdale.) At least then I'll have some first hand experience to base my estimation (of the relationship between USTA and non-USTA NTRP based ratings) on. I agree that a WAG (based on absolutely nothing) would be silly. But the notion that NTRP-based ratings refer to similar playing abilities in non-USTA and USTA leagues does have a certain non-WAG, albeit still rather flimsy, basis. So, I don't think it's quite as bad as comparing apples and oranges, but more like cumquats and oranges.