Primera B Metropolitana

Primera B Metropolitana is currently organized so, during the course of a season, each club plays the others twice (a double round robin system), once at their home stadium and once at that of their opponents.

The teams that hold the second to fifth positions have the chance to enter the Torneo Reducido (small tournament) whose winner will be promoted.

Established in 1899, the Primera B Metropolitana (originally named "Segunda División") was the first second division championship in Argentine football.

Three years later, San Lorenzo de Almagro promoted to Primera División after beating Honor y Patria.

In 1986 the Argentine Association created the Primera B Nacional with the purpose of allowing clubs throughout Argentina to play official competitions.

In the first decades of professionalism, some tournaments were called "Primera Amateur" and "Segunda de Ascenso", taking the names of their predecessors: "Primera Division" (AAmF) and "Segunda División con ascenso a 1ª" (from the Biblioteca AFA 1934 )