Tournaments organised by dissident Asociación Amateurs (AAm) were named "Extra". When both associations, AAmF and AAF merged in 1926, from the 1927 season, the "Primera División Sección B" (predecessor of Primera B) is created and the Segunda División was set as the fourth level (level of youth team), and Intermedia the third.
Tournaments sanctioned by AAm were referred to as "Extra". Following the merger of AAmF and AAF in 1926, from the 1927 season onwards, the "First Division Section B" (an early precursor to Primera B) was established, and the Segunda División took on a fourth-tier status (for youth teams), while Intermedia became the third tier.