BUENOS AIRES — Boca Juniors defeated Tigre 2-0 Sunday, with goals from Cristian Chavez and Lucas Viatri, to pick up their first victory of the season in the Argentine first division. In other matches Sunday, Racing Club defeated Argentinos Juniors 2-0 with goals from Fernando Ortiz and Adrian Centurion, while Alexis Castro scored as Godoy Cruz defeated Santa Fe 1-0. Colon leads after two rounds with six points. Six clubs are tied with four points. In other weekend results it was: San Martin 0, Colon 1; Lanus 0, Newell's 1; Estudiantes 0, River Plate 2; Belgrano 0, S Lorenzo 0; All Boys 1, Quilmes 1. — AP