| Austrian Open Qual | 2021/05/27 10:00 | Samuel Cassar v Karl Kert | L | 0-2 |
| Slovenia Int. | 2021/05/20 10:00 | Seng Zoe Yeoh v Samuel Cassar | L | 2-0 |
| Portuguese Int. Qual | 2021/05/06 09:30 | Samuel Cassar v Adel Hamek | L | 0-2 |
| Slovak Open Qual | 2020/02/26 15:25 | Gergo Pytel v Samuel Cassar | L | 2-0 |
| Iceland Int. | 2020/01/24 17:20 | Matthew Abela v Samuel Cassar | L | 2-0 |
| Welsh Int. Qual | 2019/11/27 13:30 | Samuel Cassar v Antonis Antoniou | W | 2-0 |
| Hatzor Int | 2019/10/24 09:00 | Samuel Cassar v Gal Hiram | W | 2-0 |
| Polish Int. Qual | 2019/09/19 07:35 | Piotr Krajewski v Samuel Cassar | W | 0-2 |
| Lithuanian Int. Qual | 2021/06/10 16:00 | Kai Niederhuber v Kilian Ming-Zhe Maurer | W | 2-0 |
| Austrian Open Qual | 2021/05/27 15:10 | Kai Niederhuber v Philip I Klindt | L | 1-2 |
| Austrian Open Qual | 2021/05/27 10:35 | Lenny Sudarma v Kai Niederhuber | W | 0-2 |
| Slovenia Int. Qual | 2021/05/19 14:00 | Amaury Lievre v Kai Niederhuber | L | 2-0 |
| Austrian Open Qual | 2020/02/19 11:55 | Kai Niederhuber v Georgii Karpov | L | 1-2 |