| 17. Round | 08/07/2023 | Deportes Iquique | - | San Marcos | 2:1 |  |
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| 21. Round | 08/08/2023 | San Luis | - | San Marcos | 2:3 | ||||
| 22. Round | 12/08/2023 | San Marcos | - | Rangers | 2:1 |  |
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| 23. Round | 19/08/2023 | La Serena | - | San Marcos | 1:1 | ||||
| 24. Round | 28/08/2023 | San Marcos | - | Deportes Temuco | 1:2 | ||||
| 25. Round | 04/09/2023 | Universidad de Concepción | - | San Marcos | 2:1 | ||||
| 26. Round | 11/09/2023 | San Marcos | - | Santiago Wanderers | 1:2 | ||||
| 27. Round | 24/09/2023 | Puerto Montt | - | San Marcos | 1:1 |
Uruguay