Overview
- The first leg is set for Mar del Plata, with local reports indicating Monday at José Alberto Valle at 15:30 pending official confirmation, and the return planned for the weekend of November 2 with Olimpo holding the tie‑break edge.
- Kimberley reached this round by eliminating Cipolletti 1–0 at home and 0–0 away despite carrying the sporting disadvantage.
- The Reválida third‑stage field is finalized, including Sportivo Belgrano vs Guillermo Brown, Argentino de Monte Maíz vs Douglas Haig, Gimnasia de Chivilcoy vs Juventud Antoniana, San Martín de Formosa vs Costa Brava, Deportivo Rincón vs 9 de Julio, and Sarmiento (La Banda) vs Atenas.
- Ciudad de Bolívar and Atlético de Rafaela will play the final for the first promotion, with the loser entering the Reválida at the quarterfinal stage.
- Olimpo won all three meetings with Kimberley earlier in the tournament, 2–1 in Bahía Blanca and twice 1–0 in Mar del Plata.