| Champions League | 2020/11/15 13:00 | OSC Budapest v NO Vouliagmenis | L | 11-7 |
| Champions League | 2019/09/25 15:30 | NO Vouliagmenis v OSC Budapest | L | 5-7 |
| LEN Euro Cup | 2020/12/06 09:00 | Carouge Natation v NO Vouliagmenis | W | 5-21 |
| LEN Euro Cup | 2020/12/05 18:00 | Pays d'Aix Natation v NO Vouliagmenis | W | 11-12 |
| LEN Euro Cup | 2020/12/04 16:00 | NO Vouliagmenis v SV Ludwigsburg | W | 21-6 |
| Champions League | 2020/11/15 13:00 | OSC Budapest v NO Vouliagmenis | L | 11-7 |
| Champions League | 2020/11/14 16:00 | AN Brescia v NO Vouliagmenis | L | 10-6 |
| Greece A1 | 2020/10/31 11:30 | NO Vouliagmenis v Apollon Smyrnis | W | 10-6 |
| Greece A1 | 2020/10/24 14:00 | ANO Glyfadas v NO Vouliagmenis | W | 7-8 |
| Greece A1 | 2020/10/14 11:00 | NO Vouliagmenis v PAOK | W | 11-9 |
| Hungary National Championship | 2021/02/04 15:45 | OSC Budapest v BVSC-Zuglo | W | 10-9 |
| Hungary National Championship | 2021/01/30 15:00 | Kaposvari VK v OSC Budapest | W | 6-15 |
| Hungary National Championship | 2021/01/23 10:00 | KSI SE v OSC Budapest | W | 5-17 |
| Hungary OB I | 2021/01/16 15:00 | Szeged v OSC Budapest | W | 7-15 |
| Hungary National Championship | 2020/12/14 18:30 | OSC Budapest v ZF Eger | W | 14-5 |
| Hungary National Championship | 2020/12/11 16:30 | FTC Budapest v OSC Budapest | W | 12-16 |
| LEN Euro Cup | 2020/12/06 11:00 | OSC Budapest v Triglav Kranj | W | 21-5 |
| LEN Euro Cup | 2020/12/05 16:00 | CN Noisy Le Sec v OSC Budapest | W | 7-14 |