Head to Head
| World Cup | 2023/03/08 16:30 | Italy v Japan | W | 13-7 |
| Olympics 2020 Water Polo - Men | 2021/07/31 09:20 | Italy v Japan | W | 16-8 |
| World League | 2021/06/29 14:15 | Italy v Japan | W | 15-12 |
| World Championships | 2019/07/17 07:30 | Japan v Italy | W | 7-9 |
| World League | 2016/06/23 09:40 | Japan v Italy | W | 10-17 |
Home History
| FINA World Champs | 2024/02/17 14:30 | Italy v Croatia | L | 13-15 |
| FINA World Champs | 2024/02/15 13:00 | Spain v Italy | W | 6-8 |
| FINA World Champs | 2024/02/13 14:30 | Greece v Italy | W | 10-11 |
| FINA World Champs | 2024/02/11 16:00 | USA v Italy | W | 12-13 |
| FINA World Champs | 2024/02/09 09:00 | Romania v Italy | W | 10-16 |
| FINA World Champs | 2024/02/07 17:30 | Hungary v Italy | L | 15-14 |
| FINA World Champs | 2024/02/05 16:00 | Italy v Kazakhstan | W | 33-3 |
| European Champs | 2024/01/16 15:30 | Hungary v Italy | W | 7-12 |
Away History
| FINA World Champs | 2024/02/13 07:30 | Brazil v Japan | W | 11-22 |
| FINA World Champs | 2024/02/11 07:30 | Japan v Kazakhstan | W | 17-4 |
| FINA World Champs | 2024/02/09 06:00 | Montenegro v Japan | L | 13-11 |
| FINA World Champs | 2024/02/07 09:00 | USA v Japan | L | 18-5 |
| FINA World Champs | 2024/02/05 13:00 | Japan v Serbia | L | 10-17 |
| Internationals | 2024/01/08 10:15 | Australia v Japan | D | 14-14 |
| FINA World Champs | 2023/07/27 00:00 | Canada v Japan | W | 11-23 |
| FINA World Champs | 2023/07/25 04:30 | Australia v Japan | L | 16-15 |