Head to Head
| World Rugby U20 Champs | 2015/06/10 16:30 | Wales U20 v Japan U20 | W | 66-3 |
Home History
| World Rugby U20 Champs | 2018/06/03 14:30 | New Zealand U20 v Wales U20 | L | 42-10 |
| World Rugby U20 Champs | 2018/05/30 19:00 | Australia U20 v Wales U20 | W | 21-26 |
| Six Nations U20 | 2018/03/16 20:15 | Wales U20 v France U20 | L | 3-24 |
| Six Nations U20 | 2018/03/09 19:15 | Wales U20 v Italy U20 | L | 7-18 |
| Six Nations U20 | 2018/02/23 19:15 | Ireland U20 v Wales U20 | W | 38-41 |
| Six Nations U20 | 2018/02/09 19:45 | England U20 v Wales U20 | L | 37-12 |
| Six Nations U20 | 2018/02/02 20:15 | Wales U20 v Scotland U20 | W | 36-3 |
| World Rugby U20 Champs | 2017/06/18 13:00 | Wales U20 v Italy U20 | W | 25-24 |
Away History
| World Rugby U20 Champs | 2018/06/03 12:00 | Australia U20 v Japan U20 | L | 54-19 |
| World Rugby U20 Champs | 2018/05/30 19:00 | New Zealand U20 v Japan U20 | L | 67-0 |
| World Rugby U20 Champs | 2016/06/25 11:00 | Italy U20 v Japan U20 | L | 41-17 |
| World Rugby U20 Champs | 2016/06/20 16:30 | France U20 v Japan U20 | L | 41-27 |
| World Rugby U20 Champs | 2016/06/15 14:15 | Argentina U20 v Japan U20 | L | 39-20 |
| World Rugby U20 Champs | 2016/06/11 14:45 | France U20 v Japan U20 | L | 46-14 |
| World Rugby U20 Champs | 2016/06/07 14:15 | South Africa U20 v Japan U20 | L | 59-19 |
| World Rugby U20 Champs | 2015/06/20 09:00 | Argentina U20 v Japan U20 | L | 38-21 |