| 1. Round | 04/04/2021 | Omiya Ardija [U18] | - | Ryutsu Keizai University [U18] | 0:4 |  |
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| 2. Round | 11/04/2021 | Urawa Red Diamonds [U18] | - | Ryutsu Keizai University [U18] | 1:2 | |
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| 3. Round | 18/04/2021 | Ryutsu Keizai University [U18] | - | Shimizu S-Pulse [U18] | 1:2 | ||||
| 4. Round | 25/04/2021 | Kashiwa Reysol [U18] | - | Ryutsu Keizai University [U18] | 1:1 | ||||
| 6. Round | 16/05/2021 | Ryutsu Keizai University [U18] | - | Aomori Yamada High School [U18] | 0:3 | ||||
| 7. Round | 23/05/2021 | Ichiritsu Funabashi High School [U18] | - | Ryutsu Keizai University [U18] | 1:1 | ||||
| 8. Round | 27/06/2021 | Ryutsu Keizai University [U18] | - | Yokohama FC [U18] | 4:1 | |
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| 9. Round | 04/07/2021 | Yokohama F. Marinos [U18] | - | Ryutsu Keizai University [U18] | 3:2 | ||||
| 11. Round | 23/11/2021 | Ryutsu Keizai University [U18] | - | Urawa Red Diamonds [U18] | 1:2 | ||||
| 17. Round | 28/11/2021 | Yokohama FC [U18] | - | Ryutsu Keizai University [U18] | 1:0 | ||||
| 18. Round | 05/12/2021 | Ryutsu Keizai University [U18] | - | Yokohama F. Marinos [U18] | 2:0 |
Japan