| 3. Round | 06/08/2021 | Club Tijuana [U18] | - | Deportivo Toluca [U18] | 3:0 | ||||
| 4. Round | 13/08/2021 | FC Juárez [U18] | - | Club Tijuana [U18] | 3:2 |  |
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| 5. Round | 17/08/2021 | Club Tijuana [U18] | - | Puebla FC [U18] | 5:2 | ||||
| 6. Round | 22/08/2021 | CF América [U18] | - | Club Tijuana [U18] | 4:0 | ||||
| 7. Round | 27/08/2021 | Club Tijuana [U18] | - | CF Monterrey [U18] | 0:0 | ||||
| 8. Round | 10/09/2021 | Club Tijuana [U18] | - | Santos Laguna [U18] | 3:0 | ||||
| 12. Round | 03/10/2021 | Club Tijuana [U18] | - | Cruz Azul [U18] | 3:2 | ||||
| 13. Round | 14/10/2021 | Gallos Blancos [U18] | - | Club Tijuana [U18] | 2:0 | ||||
| 15. Round | 24/10/2021 | Pumas UNAM [U18] | - | Club Tijuana [U18] | 2:2 | ||||
| 16. Round | 28/10/2021 | Atlas Guadalajara [U18] | - | Club Tijuana [U18] | 1:0 | ||||
| 17. Round | 10/11/2021 | Club Tijuana [U18] | - | CF Pachuca [U18] | 2:2 |
Mexico