Oh, you mean Kramer? Yes he did only win 5 slams, but in those days, it was more lucrative on the pro tour to play barnstorming sessions. From 46-52, he owned everyone. Riggs, what was left of Budge, Segura, Gonzales, and Sedgman.
Kramer set the standard for tennis post WW2
His long tours where he was clearly superior to all challengers is proof enough, in my opinion.
Kramer is random? A player who was #1 in the World for 4 years is random? The guy who was basically the father of modern pro tennis is random? The guy has a tennis racket named after him for fuck's sake and you call him random?
Kramer certainly deserves a place in the Top 20 but I can't see the rationale for putting him above Gonzales just because he owned him in his 1st professional tour. Pretty much everybody
who turned pro was owned in his 1st professional tour. Gonzales owned Laver, Rosewall, & Hoad, did he not? The conditions were just too different from the amateur tour for the new pros to adapt in time, & this was compounded by the higher standard of play. Having to play peak Kramer or Gonzales in your 1st pro tour was a bit like having to fight Ali or Sugar Ray Robinson in your 1st professional bout. The fact remains that whatever happened between them, Gonzales achieved far more on the pro circuit than Kramer did.