 Atlas and Guadalajara have faced two times in playoffs, both in the quarter-finals.On the first occasion, in the summer tournament 2000,Chivas moved on to the semi-finals to tie both encounters 1–1, since the Guadalajara had better position in the general table.Three and a half years later, in the Opening Tournament 2004,Atlas collected revenge and eliminated their hated rivals by global marker of 4–3.