The Dominican Summer League (DSL) is a Minor League Baseball league that operates in the Dominican Republic at the Rookie level, which is the lowest grade below Major League Baseball. A champion has been determined at the end of each season since the league was formed in 1985.
The DSL Dodgers have won eight Dominican Summer League championships, more than any other team, followed by the DSL Giants and DSL Pirates (3) and the DSL Blue Jays, DSL Guardians, DSL Nationals, DSL Phillies, DSL Rangers, DSL Red Sox, and DSL Yankees (2).
The league normally holds a postseason championship series between at least its top two teams. The format of the series has varied, with single-game, best-of-three, and best-of-five formats used at different times. In 1990 and 1991, a round-robin tournament was contested between three teams. In 2021, there was no postseason. From 2022 to 2024, eight teamsâÂÂsix division winners and two wild card teamsâÂÂqualified for the playoffs seeded by winning percentage regardless of division standing. All postseason series were in best-of-three format. As of 2025, 16 teamsâÂÂ8 division winners and 8 wild card teamsâÂÂqualify. Teams are divided into four pools of four teams each and participate in a round-robin competition called the DSL Cup. The four teams with the best record in each pool advance to the championship bracket of two rounds (semifinals and finals). All postseason series are a best-of-three format.
Active Dominican Summer League teams appear in bold. Championships by co-op teams are listed as co-ops. Championships by split-squad teams (e.g. DSL Yankees 1) are listed by their main team (e.g. DSL Yankees).