| 2026-05-24 | Santamarina v Guillermo Brown | 0–2 | Regular Season - 10 |
| 2026-05-31 | Guillermo Brown v Alvarado | 0–0 | Regular Season - 11 |
| 2026-06-07 | Olimpo Bahia Blanca v Guillermo Brown | 0–0 | Regular Season - 12 |
| 2026-06-21 | Guillermo Brown v Sol de Mayo | 0–1 | Regular Season - 14 |
| 2026-06-28 | Kimberley Mar del Plata v Guillermo Brown | 3–0 | Regular Season - 15 |
| 2026-07-05 | Guillermo Brown v Circulo Deportivo | 1–0 | Regular Season - 16 |
| 2026-07-12 | Villa Mitre v Guillermo Brown | 3–0 | Regular Season - 17 |
| 2026-07-26 | Guillermo Brown v Germinal de Rawson | 2–0 | Regular Season - 18 |
| 2026-08-02 | Deportivo Rincon v Guillermo Brown | 2–0 | Losers Stage - 1 |
| 2026-08-08 | Circulo Deportivo v Guillermo Brown | 1–0 | Losers Stage - 2 |
| 2026-08-12 | Guillermo Brown v Juventud Unida Univ. | 2–1 | Losers Stage - 3 |
| 2026-08-16 | Costa Brava v Guillermo Brown | 1–0 | Losers Stage - 4 |
| 2026-08-23 | Guillermo Brown v Santamarina | 1–0 | Losers Stage - 5 |
| 2026-08-30 | Sol de Mayo v Guillermo Brown | 0–2 | Losers Stage - 6 |
| 2026-09-06 | Guillermo Brown v San Martín Mendoza | 1–1 | Losers Stage - 7 |
| 2026-09-13 | Germinal de Rawson v Guillermo Brown | 1–0 | Losers Stage - 8 |
| 2026-09-20 | Guillermo Brown v Fundacion Amigos | 0–0 | Losers Stage - 9 |
