Head to Head
| World Rugby Sevens Series | 2019/03/10 16:30 | Wales 7s v Japan 7s | W | 35-0 |
| World Rugby Sevens Series | 2019/03/03 19:00 | Wales 7s v Japan 7s | W | 31-14 |
| World Rugby Sevens Series | 2019/02/03 03:48 | Japan 7s v Wales 7s | L | 19-17 |
| World Rugby Sevens Series | 2018/12/09 11:57 | Wales 7s v Japan 7s | W | 28-7 |
| World Rugby Sevens Series | 2018/12/01 13:53 | Japan 7s v Wales 7s | W | 7-31 |
| World Rugby Sevens Series | 2018/04/29 03:00 | Japan 7s v Wales 7s | W | 19-28 |
| World Rugby Sevens Series | 2017/04/09 09:00 | Wales 7s v Japan 7s | L | 21-28 |
| World Rugby Sevens Series | 2017/04/08 08:48 | Wales 7s v Japan 7s | W | 34-21 |
| World Rugby Sevens Series | 2017/03/12 17:36 | Wales 7s v Japan 7s | W | 33-0 |
| World Rugby Sevens Series | 2017/03/05 22:28 | Japan 7s v Wales 7s | W | 19-21 |
| World Rugby Sevens Series | 2016/04/16 03:50 | Wales 7s v Japan 7s | L | 19-26 |
| World Rugby Sevens Series | 2016/02/06 08:57 | Japan 7s v Wales 7s | W | 21-26 |
| World Rugby Sevens Series | 2016/01/30 05:20 | Wales 7s v Japan 7s | W | 33-28 |
| World Rugby Sevens Series | 2015/05/16 15:40 | Wales 7s v Japan 7s | W | 24-21 |
| World Rugby Sevens Series | 2015/02/15 18:42 | Wales 7s v Japan 7s | W | 47-33 |