Originally Posted by TMF
If you're going to head that route by saying one match doesn't tell the whole story then there's no argument to say Agassi is better returner than Fed on grass. In that case Del Potro isn't > Nadal at the USO or Cash isn't > Lendl at Wimbledon because it's only one match. If you feel that way, fine. For me, one match is better than nothing, at least we have some data to look into.
Of course there is. How about you compare their return stats on grass? That's a start. How about compare their return stats against big servers on grass? You take refuge in one match when there's a whole body of data, contemporary opinions and common sense at hand. To imply there is no other data is patently false. The burden of proof rests on the one making the outsanding claim.