Copy Link MiLB.com introduces the 11 leagues created by the restructuring of Minor League Baseball across four levels of play. Below is a team-by-team look at the Low-A West, including affiliation, previous circuit and most recent championship. (Note: "Established" refers to the first year of a team's continuous operation in that market across four levels of play. Below is a team-by-team look at the Low-A West, including affiliation, previous circuit and most recent championship. (Note: "Established" refers to the first year of a team's continuous operation in that market regardless of league or level.) Learn about other leagues here:Triple-A East, Triple-A West, Double-A Northeast, Double-A Central, Double-A South, High-A East, High-A Central, High-A West, Low-A East, Low-A Southeast