The 12th date of the Apertura Tournament 2026 is underway from March 20 to March 25, featuring 15 matches; prominent fixtures include Vélez vs. Lanús, Estudiantes de Río Cuarto vs. River, and Boca vs. Instituto. In this tournament, 30 teams are divided into two groups of 15, competing against each other with the top eight from each group advancing to the knockout stages after 16 rounds. The competition follows a format where teams face every other team within their zone, alongside additional interzonal matches and classic rival matches, culminating in a single-elimination phase to determine the champion, who will qualify for the 2027 Copa Libertadores.