Looking at the match statistics between Youzhny and Karlovic (attached) a little while ago, I encountered something that really puzzles me. As you can see, Karlovic had 0 "Winners (Including Service)" at the time, yet he had 4 aces. My question, thus, is: what the heck does the "Including Service" part mean? I previously assumed that it included winners in rallies as well as aces, but not service winners, because these, although called winners, are really forced errors. It seems, however, that aces are not counted, yet the "Including Service" part is still there. Does this mean that they count service winners? That makes no sense at all, because these are forced errors. Why not count forced forehand errors as well? What makes even less sense is including service winners, which are not winners, while not including aces, which clearly are. Am I getting this correctly? Does "Winners (Including Service)" measure winners in rallies plus service winners? If so, what moron came up with that metric? It makes absolutely no fucking sense. If this is the case, winners are not at all directly comparable with unforced errors, so looking at Winners/UE ratios like we all do makes little sense.
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