| Bulgarian Int. Qual | 2023/10/05 15:10 | Justin Seibel v Niilo Nyqvist | L | 0-2 |
| Bulgarian Int. Qual | 2023/10/05 13:00 | Justin Seibel v Helmer Andersson | W | 2-1 |
| Bulgarian Int. Qual | 2023/10/05 07:35 | Justin Seibel v Berat Ayindi | W | 2-0 |
| Croatian Int. | 2023/09/29 09:55 | Martin Bundgaard v Justin Seibel | L | 2-0 |
| Croatia Int. Qual | 2023/09/28 18:30 | Szymon Stokfisz v Justin Seibel | W | 0-2 |
| Croatia Int. Qual | 2023/09/28 08:10 | Justin Seibel v Arun Kumar | W | 2-1 |
| Latvia Int. Qual | 2023/08/31 08:20 | Neil Bhabuta v Justin Seibel | L | 2-1 |
| Latvia Int. Qual | 2023/08/30 12:00 | Emil Dantler v Justin Seibel | W | 1-2 |