| U20 MM | 2023/06/14 12:00 | Japan U20 v Croatia U20 | L | 12-21 |
| U20 MM | 2023/06/13 15:00 | Netherlands U20 v Japan U20 | L | 18-12 |
| U20 MM | 2023/06/12 09:00 | Saksamaa U20 v Japan U20 | W | 12-13 |
| U20 MM | 2023/06/11 10:30 | Japan U20 v South Africa U20 | W | 26-12 |
| U20 World Championships | 2019/12/20 10:30 | Japan U20 v USA U20 | L | 14-19 |
| U20 World Championships | 2019/12/19 13:00 | Montenegro U20 v Japan U20 | L | 16-11 |
| U20 World Championships | 2019/12/18 15:40 | Italy U20 v Japan U20 | L | 15-5 |
| U20 World Championships | 2019/12/17 14:30 | Japan U20 v Australia U20 | W | 11-10 |
| U20 MM | 2023/06/14 16:30 | Rumeenia U20 v Greece U20 | L | 8-15 |
| U20 MM | 2023/06/13 16:30 | Rumeenia U20 v Australia U20 | W | 11-5 |
| U20 MM | 2023/06/10 14:00 | New Zealand U20 v Rumeenia U20 | W | 6-15 |