| 1. Round | 27/08/2017 | San Martín de San Juan | - | Patronato de Paraná | 2:0 | ||||
| 3. Round | 18/09/2017 | San Martín de San Juan | - | River Plate | 1:3 | ||||
| 15. Round | 12/02/2018 | Atlético Tucumán | - | San Martín de San Juan | 2:1 |  |
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| 16. Round | 18/02/2018 | San Martín de San Juan | - | Talleres de Córdoba | 1:1 | |
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| 17. Round | 25/02/2018 | Boca Juniors | - | San Martín de San Juan | 4:2 | |
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| 18. Round | 05/03/2018 | San Martín de San Juan | - | Independiente | 0:4 | ||||
| 19. Round | 13/03/2018 | Newell's Old Boys | - | San Martín de San Juan | 2:0 | ||||
| 20. Round | 17/03/2018 | San Martín de San Juan | - | Gimnasia de La Plata | 3:0 | |
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| 21. Round | 31/03/2018 | Unión de Santa Fe | - | San Martín de San Juan | 1:1 | |
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| 24. Round | 21/04/2018 | San Martín de San Juan | - | Lanús | 1:1 | |
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| 25. Round | 28/04/2018 | Godoy Cruz | - | San Martín de San Juan | 2:0 | ||||
| 26. Round | 04/05/2018 | San Martín de San Juan | - | Vélez Sarsfield | 0:2 | ||||
| 27. Round | 11/05/2018 | Chacarita Juniors | - | San Martín de San Juan | 1:4 | |
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