| Bonn Int. Qual | 05/30 07:00 | - | Justin Seibel v Yu-Han Hsu | L | 1-2 | |
| Bonn Int. Qual | 05/29 14:20 | - | Jacob Thyge v Justin Seibel | W | 0-2 | |
| Bonn Int. Qual | 05/29 08:00 | - | Michael Pang v Justin Seibel | W | 1-2 | |
| Luxembourg Open Qual | 05/02 09:25 | - | Justin Seibel v Nicholas Raj | L | 0-2 | |
| Finnish Int. Qual | 04/25 11:15 | - | Justin Seibel v Juuso Kuoppala | L | 1-2 | |
| Finnish Int. Qual | 04/25 08:35 | - | Mats Duwel v Justin Seibel | - | Walkover | |
| Malta Int. Qual | 04/04 11:15 | - | Charlie Castle v Justin Seibel | L | 2-1 | |
| Portugal Int. Qual | 03/06 16:20 | - | Heng Lin Ngan v Justin Seibel | L | 2-0 | |
| Bulgarian Int. Qual | 10/05 15:10 | - | Justin Seibel v Niilo Nyqvist | L | 0-2 | |
| Bulgarian Int. Qual | 10/05 13:00 | - | Justin Seibel v Helmer Andersson | W | 2-1 | |
| Bulgarian Int. Qual | 10/05 07:35 | - | Justin Seibel v Berat Ayindi | W | 2-0 | |
| Croatia Int. Qual | 09/29 14:35 | - | Justin Seibel v Loris Dietrich | - | View |