[4] Quilmes played their first pre-season friendlies on 21 June versus Futbolistas Argentinos Agremiados, initially beating the team of free agents 3–0 before drawing 1–1.
[5] 26 June saw Franco Niell depart to Barracas Central, two days prior to Quilmes' second set of exhibitions against Puerto Nuevo of Primera D Metropolitana; they won by an aggregate of 6–0.
[10] An incoming and an outgoing were made official on 5 July, as Gabriel Ramírez joined from Lanús while Juan Larrea headed to Greece with second tier club Apollon Smyrnis.
[17] Preparations continued on 17 July as they avoided defeat in two games with Brown at the Estadio Centenario Ciudad de Quilmes.
[20] Two sets of friendlies occurred between 20/24 July versus Aldosivi and Talleres, with the games ending in similar fashion after goalless draws were followed by two-goal Quilmes wins.
[27] On the eve of their Primera B Nacional bow for 2019–20, Quilmes revealed a double incoming of Carlos Matheu (Unión Española) and Bautista Cejas (Estudiantes (LP).
Quilmes scheduled friendlies with twelve opponents, kicking off with an encounter against Futbolistas Argentinos Agremiados, a team of free agents, in June before concluding with an exhibition match with Chacarita Juniors in August.