| 1. Round | 04/04/2021 | Nagoya Grampus [U18] | - | Sagan Tosu [U18] | 4:0 | ||||
| 2. Round | 11/04/2021 | Júbilo Iwata [U18] | - | Nagoya Grampus [U18] | 1:1 |  |
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| 3. Round | 18/04/2021 | East Fukuoka High School [U18] | - | Nagoya Grampus [U18] | 1:2 | ||||
| 4. Round | 25/04/2021 | Nagoya Grampus [U18] | - | Sanfrecce Hiroshima [U18] | 2:2 | ||||
| 5. Round | 18/07/2021 | Cerezo Osaka [U18] | - | Nagoya Grampus [U18] | 1:2 | ||||
| 7. Round | 03/10/2021 | Nagoya Grampus [U18] | - | Vissel Kobe [U18] | 2:3 |  |
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| 15. Round | 17/10/2021 | Nagoya Grampus [U18] | - | Otsu High School [U18] | 1:5 | ||||
| 8. Round | 31/10/2021 | Nagoya Grampus [U18] | - | Gamba Osaka [U18] | 4:1 | |
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| 16. Round | 20/11/2021 | Vissel Kobe [U18] | - | Nagoya Grampus [U18] | 2:1 | ||||
| 17. Round | 27/11/2021 | Gamba Osaka [U18] | - | Nagoya Grampus [U18] | 2:3 | ||||
| 18. Round | 05/12/2021 | Nagoya Grampus [U18] | - | Kyoto Sanga FC [U18] | 3:1 | |
Japan