The Florida State League of Minor League Baseball was a Class A-Advanced baseball league in the United States. The league was founded in 1919. A league champion is determined at the end of each season. Champions have been determined by postseason playoffs, winning the regular season pennant, or being declared champion by the league office. Off and on (1919–28, 1936–41, and 1946–68), the league recognized pennant winners and/or playoff winners as league champions. Currently, the first-half and second-half winners in each division (North and South) compete in a best-of-three series to determine division champions. Then, the North and South division winners play a best-of-five series to determine a league champion. Since 1979, the winner of the League Championship Series has become the holder