Originally Posted by TMF
All we know is winning slam on 3 difference surfaces is harder than 2 surfaces. Ok?
Actually I don't think I necessarily agree. Grass was a surface that every player was familar with in the 1960's and most players played on it frequently and because of that many many players developed styles that were effective of grass. Hence, the depth of grass talent was much much deeper than it is now. Hence, 3 out of 4 on Grass actually becomes a harder proposition because almost everybody is good on grass as opposed to today when it is merely a specialist surface.