| International d'Islande | 2023/01/27 14:15 | Karl Kert v Marcus Viscovich | W | 0-2 |
| Hungarian Int. Qual | 2022/11/02 19:05 | Karl Kert v Marcus Viscovich | W | 0-2 |
| Dutch Int. - Qualif. | 2023/04/13 11:30 | Samuel Lee v Marcus Viscovich | L | 2-1 |
| Dutch Int. - Qualif. | 2023/04/13 08:50 | Marcus Viscovich v Sebastian Kadlec | W | 2-0 |
| International d'Islande | 2023/01/28 11:20 | Marcus Viscovich v Kholik, Firman Abdul | L | 1-2 |
| International d'Islande | 2023/01/27 14:15 | Karl Kert v Marcus Viscovich | W | 0-2 |
| Internationaux d'Islande - Qualif. | 2023/01/26 16:00 | Gal Bizjak v Marcus Viscovich | W | 0-2 |
| Internationaux d'Islande - Qualif. | 2023/01/26 11:30 | James Robertson v Marcus Viscovich | W | 0-2 |
| Welsh Int. Qual | 2022/11/30 11:20 | Nicolas A. Mueller v Marcus Viscovich | W | 0-2 |
| Hungarian Int. Qual | 2022/11/03 09:10 | Chi Ting Chen v Marcus Viscovich | L | 2-1 |
| Open de Pologne - Qualif. | 2023/03/22 16:10 | Farid,daniel v Karl Kert | L | 2-1 |
| Open de Pologne - Qualif. | 2023/03/22 08:25 | Camilo Borst v Karl Kert | W | 0-2 |
| International d'Islande | 2023/01/27 14:15 | Karl Kert v Marcus Viscovich | L | 0-2 |
| Estonie Int. - Qualif. | 2023/01/12 10:55 | Heino, Iikka v Karl Kert | L | 2-0 |
| Estonie Int. - Qualif. | 2023/01/12 07:20 | Karl Kert v Mykhailo Vyshnevyi | W | 2-1 |
| Irish Open Qual | 2022/11/16 09:35 | Torjussen, J. v Karl Kert | L | 2-0 |
| Hungarian Int. Qual | 2022/11/02 19:05 | Karl Kert v Marcus Viscovich | L | 0-2 |
| Latvia Int. | 2022/09/03 07:40 | Karl Kert v Enogat Roy | L | 1-2 |