Contrary to what happens in the countries of South America, where the champions and runners up to attend this competition, in Mexico had to play a playoff to get your ticket, with the exception of 1998, the first year it was competed when decided that America and Guadalajara will play the Pre-Libertadores, against teams from Venezuela.
Later this year, all teams who obtained a certain number of points, had the right to stand alongside the teams of Venezuela, which lasted until 2003 and a year later, came the Interleague, where eight tables integrated into two groups were played two walks.
