Match 1: Tuesday, July 22, 2025, Kick-off 18:00 / Yanmar Stadium Nagai
| Kashima Antlers Youth | 3 | 2 | First Half | 0 | 0 | JEF United Chiba U-18 |
| 1 | Second Half | 0 | ||||
| Goal Scorers: Daigo Hirashima, Eito Takagi, Minato Yoshida | ||||||
Match 2: Wednesday, July 23, 2025, Kick-off 18:00 / Yanmar Stadium Nagai
| Kashima Antlers Youth | 2 | 1 | First Half | 0 | 1 | AC Nagano Parceiro U-18 |
| 1 | Second Half | 1 | ||||
| Goal Scorers: Minato Yoshida x2 | ||||||
Match 3: Friday, July 25, 2025, Kick-off 18:00 / Yanmar Stadium Nagai
| Kashima Antlers Youth | 2 | 0 | First Half | 0 | 0 | Júbilo Iwata U-18 |
| 2 | Second Half | 0 | ||||
| Goal Scorers: Shusei Takizawa, Kirito Takagi | ||||||
Knockout Stage
Quarterfinals: Saturday, July 26, 2025, Kick-off 18:00 / J-GREEN Sakai Main Field (S1)
| Kashima Antlers Youth | 5 | 3 | First Half | 1 | 3 | Vissel Kobe U-18 |
| 2 | Second Half | 2 | ||||
| Goal Scorers: Minato Yoshida x3, Towa Asahina, Daigo Hirashima | ||||||
Semifinals: Tuesday, July 29, 2025, Kick-off 18:00 / Nippatsu Mitsuzawa Stadium
| Kashima Antlers Youth | 1 | 1 | First Half | 0 | 1 | FC Tokyo U-18 |
| 0 | Second Half | 1 | ||||
| 4 | PK | 2 | ||||
| Goal Scorer: Daigo Hirashima | ||||||
Final: Thursday, July 31, 2025, Kick-off 18:00 / Nippatsu Mitsuzawa Stadium
| Kashima Antlers Youth | 3 | 2 | First Half | 0 | 0 | Vegalta Sendai Youth |
| 1 | Second Half | 0 | ||||
| Goal Scorers: Yuwa Fukuoka, Eito Takagi, Tenzan Nakagawa | ||||||