[5] On the other hand, Talleres de Córdoba and Nueva Chicago played the promotion playoff v San Martín de Mendoza and Argentinos Juniors respectively, in order to define which team would remain in (or promote to) Primera División.
River Plate, Boca Juniors and Velez Sarsfield were the teams who kept the league's lead for most of the tournament (except for Round 4, when the temporary leader was Rosario Central, who finished fourth), and those three teams were the ones who arrived at the last rounds with possibilities of winning the tournament.
Velez Sarsfield started the tournament with three consecutive wins, obtaining the lead at the end of Round 3.
However, an unexpected home loss to Olimpo on Round 15, made Velez lose the first position[9] as Boca and River won their matches against Huracán and San Lorenzo respectively.
On June 15, during Round 16, River Plate defeated Lanús and because Velez and Boca tied their games, finished the match day as sole leaders.