Less than halfway into its maiden season, the Inter-American League – planned as a new Triple-A circuit – folds. The Miami Amigos, with a 43-17 record, are declared the league champions.

On June 30, 1979 Less than halfway into its maiden season, the Inter-American League – planned as a new Triple-A circuit – folds. The Miami Amigos, with a 43-17 record, are declared the league champions.

Source
Baseball Reference June 30