The Lechero beat Gimnasia 2-0 at the 23 de Agosto stadium and displaced the Lobo from first place in the Primera Nacional. Nicolás Fernández and Diego Becker scored in the first half, taking the visitors to 42 points.
The side from Brandsen beat Everton de La Plata 1-0 in round 14 of the Promocional Amateur. After a goalless first half, the visitors settled the match and moved to 14 points in Group B.
The Millonarias won in round three of the women's Clausura through a Mercedes Diz brace and an Aldana Barrionuevo goal. Jesica Casatti scored late for the Tatengas, who suffered their first defeat of the tournament.
The Granate host the Pergamino side on Wednesday at 3:30 p.m. in round three of the Federal A Championship Phase. Both are coming off defeats and need to rebuild their position in Group A, led by San Martín de Formosa.
The Charrúa won 2-1 away in round 23 of Primera C. Benjamín Gallucci and Mateo Yaszzuk built the lead before half-time, while Facundo Rojas pulled one back for a Luján side that finished with nine players.
Argentina's Under-17 futsal team beat Peru 8-0 in Luque, earned a second straight victory and reached six points in Group B. Lorenzo Sampedro scored twice, while Santiago Basile's side have thirteen goals without conceding.
Defensa y Justicia beat Newell's 2-1 in Florencio Varela in round four of the Clausura. Fernando Román and Tomás Pérez scored for the Halcón, who reached seven points in Group A, while Bruno Cabrera replied for the visitors.
Racing de Córdoba beat San Miguel 1-0 at the Miguel Sancho through Luciano Viano's goal 21 minutes into the second half. La Academia reached 30 points in Group A and moved within three of the promotion playoff positions.
Brown de Adrogué beat the then-leaders of the Primera B 1-0 through Brian Guerrero's goal six minutes into the second half. The Tricolor reached 31 points, took seven from the last nine available and left Excursionistas in second place.
The Franjeado beat Douglas Haig 4-1 through goals from Mauro Siergiejuk, Gervasio Núñez, Gianfranco Alegre and Lautaro Cerato. Three first-half goals set up a victory that left the Formosa side alone at the top of their group.
Las Gladiadoras beat Newell's 2-0 at Casa Amarilla through second-half goals from Brisa Priori and Luzmila Ramírez. Boca reached six points in the women's Clausura and recorded a second straight win after defeating Racing.
Santiago Basile's team open on Saturday against Ecuador and share Group B with Peru, Bolivia and Brazil. Argentina arrive in Paraguay as two-time defending champions and the competition's most successful nation, with the title decided on 16 August.