At least one side finished scoreless in 1 of the Instituto de Córdoba games and 3 of the Deportivo Riestra games. These final-score shapes describe the record; they cannot identify defensive formations. Newest-first completed scorelines: Instituto de Córdoba 1-0, 2-2, 4-1, 3-1, 2-1; Deportivo Riestra 1-1, 0-1, 1-1, 0-0, 0-3.
For this matchup, Over 1.75 goals at 1.80 is my conditional call. The matchup read starts with recorded form; tactical details remain unverified. The recorded form is visible, while lineup and tactical details for the upcoming game are still unverified. That separates the observed results from any game-plan inference. The recorded goals are 12 for and 5 against Instituto de Córdoba, versus 2 for and 6 against Deportivo Riestra.
The recorded goal counts do not establish match tempo or finishing quality. Without verified lineups or tactics, I keep the matchup claim conditional.