Rank the 12 Fedalovic USO wins

[WeekendTennisHack]

You mean like you used the qualifier of "off clay"?

Surfaces are real conditions. Tennis had defined things like clay and grass season, so they certainly make sense. No one is stupid enough to say a 30 clay slam winner is better than a guy who won 7 slams at each grand slam ending up with "only" 28.