| 4. Journée | 11.08.2018 | CF Pachuca [U15] | - | Pumas UNAM [U15] | 3:1 |  |
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| 5. Journée | 18.08.2018 | Pumas UNAM [U15] | - | Deportivo Toluca [U15] | 2:2 | ||||
| 6. Journée | 25.08.2018 | Cruz Azul [U15] | - | Pumas UNAM [U15] | 0:1 |  |
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| 8. Journée | 08.09.2018 | Puebla FC [U15] | - | Pumas UNAM [U15] | 0:2 | ||||
| 9. Journée | 15.09.2018 | Pumas UNAM [U15] | - | CD Veracruz [U15] | 3:0 | ||||
| 10. Journée | 22.09.2018 | Pumas UNAM [U15] | - | Lobos BUAP [U15] | 2:0 | |
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| 11. Journée | 29.09.2018 | CF América [U15] | - | Pumas UNAM [U15] | 1:4 | ||||
| 13. Journée | 13.10.2018 | Pumas UNAM [U15] | - | CF Pachuca [U15] | 3:2 | ||||
| 14. Journée | 20.10.2018 | Deportivo Toluca [U15] | - | Pumas UNAM [U15] | 1:2 | |
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| 15. Journée | 27.10.2018 | Pumas UNAM [U15] | - | Cruz Azul [U15] | 1:2 | ||||
| 16. Journée | 03.11.2018 | Club Tijuana [U15] | - | Pumas UNAM [U15] | 2:3 |  |
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| 17. Journée | 10.11.2018 | Pumas UNAM [U15] | - | Puebla FC [U15] | 0:1 | ||||
| 18. Journée | 17.11.2018 | CD Veracruz [U15] | - | Pumas UNAM [U15] | 0:1 |
Mexique