What is the name of Gatsby's business associate who fixed the 1919 World Series?

Meyer Wolfsheim is Gatsby’s business associate who is said to have fixed the 1919 World Series.

Wolfsheim is a gambler and underworld figure whom Gatsby introduces to Nick Carraway during lunch in New York City. Gatsby describes him as the man who fixed the World Series in 1919, connecting him to the scandal later known as the Black Sox Scandal.

The novel’s Wolfsheim is fictional, but the character is widely understood as an allusion to Arnold Rothstein, a real New York gambler who was popularly associated with the fixing of the 1919 championship series. Fitzgerald uses Wolfsheim to hint at the criminal networks behind Gatsby’s wealth and bootlegging operations.

The event itself involved the Chicago White Sox and Cincinnati Reds and was played from October 1 to 9, 1919. A common mix-up is treating Wolfsheim as a documented historical fixer. The novel makes that claim about its fictional character; it does not establish that a real person named Meyer Wolfsheim existed.