There was an offhand comment by Kramer that Kovacs, one of the most talented players ever, never won a major.
However,, Kovacs won the 1951 Cleveland event which was recognized by the PTPA as the U.S. Pro for that year.
Another gifted player who never won a major was J. Gilbert Hall, who won 39 tournaments but never played the majors apart from the U.S. Open.
At Forest Hills he had bad luck being stopped by Vines in 1932, Vines' best year, and then about five times in close five set matches, some of which he led by two sets, against Sidney Wood, a player whose game resembled Hall's game.