| U20 World Championships | 2019/12/15 10:29 | Japan U20 v South Africa U20 | W | 26-11 |
| 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 World Championships | 2019/12/15 10:29 | Japan U20 v South Africa U20 | W | 26-11 |
| U20 World Championships | 2019/12/13 17:10 | Serbia U20 v Japan U20 | L | 13-7 |
| U20 World Championships | 2019/12/12 07:40 | Japan U20 v China U20 | W | 12-9 |
| Others | 2017/08/12 09:55 | Netherlands U20 v Japan U20 | W | 6-15 |
| World Champs U20 | 2023/06/10 06:00 | Germany U20 v South Africa U20 | L | 19-4 |
| World Champs U20 | 2021/09/04 10:00 | South Africa U20 v Russia U20 | L | 7-17 |
| World Champs U20 | 2021/09/03 10:30 | South Africa U20 v Brazil U20 | L | 5-16 |
| World Champs U20 | 2021/09/02 10:00 | Italy U20 v South Africa U20 | L | 18-3 |
| World Champs U20 | 2021/08/31 08:30 | Kazakhstan U20 v South Africa U20 | W | 8-10 |
| World Champs U20 | 2021/08/30 08:30 | South Africa U20 v Greece U20 | L | 5-21 |
| World Champs U20 | 2021/08/28 14:30 | South Africa U20 v Montenegro U20 | L | 5-16 |
| U20 World Championships | 2019/12/19 08:22 | Russia U20 v South Africa U20 | L | 19-9 |