With players such as Frank Sedgman, Ken McGregor, Lew Hoad, Ken Rosewall, Rod Laver, Neale Fraser, John Newcombe, Fred Stolle, Tony Roche, Roy Emerson, Ashley Cooper, Rex Hartwig, Mervyn Rose and Mal Anderson, he won the cup an unmatched 16 times.

As Joe McCauley writes in The History of Professional Tennis, "For some reason, the pious Hopman, a strong opponent of the paid game, did not regard this as an infringement of Sedgman's amateur status.

As an example of Hopman's journalism, Kramer writes that Sedgman, by then a successful touring professional, once "volunteered to help train the Aussie Davis Cup team.

After a few days, Hopman wrote an exclusive in his newspaper column revealing how his kids could whip Sedgman and how this proved once again that amateurs were better than the pros.

Tennis great Jack Kramer, who was also a successful promoter of the professional tour, writes in his 1979 autobiography that Hopman "always knew exactly what was going on with all his amateurs.

[5] Hopman emigrated to the United States in 1969 and became a successful professional coach, at Port Washington Tennis Academy, of future champions such as Vitas Gerulaitis and later John McEnroe.