The main reason for why Mr. Ungar changed from gin to poker was that he was a bit too skilled at it. So good in fact, that no player was able equal him. Even the apparently professionals who were meant to be the best at gin rummy were defeated when they played against Stu. One such gin rummy professionals was Harry Stein, nicknamed, "Yonkie". Harry Stein was handed such a belittling beating at the hands of stu that he apparently quit playing it professionally and never resurfaced at a gin rummy tournament.
Accordingly, with a image like that it wasn’t too long before everyone became weary of gambling against mr. ungar. He could not find any games and in his bleakness he started doing something no one had performed before. He issued starting handicaps to likely opposing players in the high hopes that they might just compete opposed to him if they thought they held an edge. He deliberately began from a negative arrangement and one story has it that he even competed with a constant cheater. Amid the game, he get warnings that the bad egg was at it again but mr. ungar stated that he was aware of the chicanery and he would still win, which he did, of course.
The same problem followed Stu Ungar into sin city. He won so often that the poker rooms started requesting that he not to compete on their poker rooms anymore. The basis for it was that other poker room players refused to sit at the poker table if Stu was playing.
Stu Ungar is recalled better for his abilities in holdem poker but he himself always insisted that he was considerably better at gin rummy.
He defeated Doyle Brunson in the WSOP in Nineteen Eighty to become the youngest world camp. Because of his features that made him appear far younger than he was, he got the nickname, "The Kid".