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 final schedule spreads the round from 7 to 10 August and confirms the main referee for every match. General Lamadrid-Deportivo Español opens the programme, while four Monday fixtures bring it to a close.
El Tambero beat Yupanqui 2-1 away on matchday 22. They overturned a deficit and settled the game in the closing minutes to draw level on points with leaders Luján.
Lisandro Mércuri scored the only goal in a 1-0 win over Sacachispas following a corner during a rain-affected match in Campana. El Portuario reached 33 points and moved firmly into the Zone A race.
The programme begins on Friday 31 July with Arsenal against Brown de Adrogué and ends on Sunday 2 August. Saturday carries six matches, all from 15:00, in a round involving all 22 clubs.
Zone A will stage four games from Saturday 25 to Tuesday 28 July, all with officials confirmed. In Zone B, two matchday-nine fixtures are listed as suspended and another still awaits a date, time and venue.
The AFA confirmed schedules for the Liga Profesional, Primera Nacional, Primera B, Primera C and Promocional Amateur from 23 to 28 July. The programme assigns fixtures, referee teams and VAR across a nationwide round.
Thirty-one-year-old forward Fernando Giménez arrived from Juventud Unida for the second half of the Primera B season. Luciano Brandán terminated his contract, while academy midfielder Santiago Roldán joined Puerto Nuevo on a one-year loan.
The AFA confirmed the complete schedule for matchday 27: ten games will be played on Saturday, 25 July, with Deportivo Laferrere against Talleres de Remedios de Escalada closing the round on Sunday, 26 July.
The Argentine Football Association released the tentative schedule for the twenty-first round of the Primera C championship. The matchday will be played between Saturday, July 25, and Monday, July 27, with all matches scheduled for 3 PM, except for Saturday's 1 PM fixture.