| 1. Round | 27/01/2018 | Club San José | - | Nacional Potosí | 1:2 |  |
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| 2. Round | 04/02/2018 | Real Potosí | - | Nacional Potosí | 3:2 | ||||
| 4. Round | 18/02/2018 | Royal Pari | - | Nacional Potosí | 1:0 | ||||
| 5. Round | 25/02/2018 | Nacional Potosí | - | Sport Boys Warnes | 3:0 |  |
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| 9. Round | 18/03/2018 | Nacional Potosí | - | Real Potosí | 2:3 | ||||
| 7. Round | 25/03/2018 | Nacional Potosí | - | Club Aurora | 1:1 | ||||
| 12. Round | 17/04/2018 | Sport Boys Warnes | - | Nacional Potosí | 4:0 |
Argentina