Did you miss the bit where I said "at all levels"? Laver won a load of big tournaments in his career. Johnston would have been a dominant player if it hadn't had been for Tilden. A bit like Pancho Segura for much of the 1950s, if it hadn't had been for Gonzales. Almost certainly, but travelling across the world was much more inconvenient in those days. The 1927 French Championships final saw Rene Lacoste beat Bill Tilden by 6-4, 4-6, 5-7, 6-3, 11-9. Was Henri Cochet a line judge? Seriously? Doesn't that call line judge impartiality into question? Tilden was back playing in Europe for the first time in 6 years because of the threat the Musketeers posed to Tilden's dominance. Tilden had an even more frustrating loss at 1927 Wimbledon, when he blew a 2-set and 5-1 in the third set lead against eventual champion, Cochet. Tilden won the WHCC at the Stade Francis, Paris in 1921, and the 1927 French Championships was also held there (the last one before it moved to Roland Garros in 1928 ). Tilden failed to win the French Championships as an amateur, but he won 2 French Pros (in 1933 and 1934), beating Cochet and Martin Plaa in the respective finals.