| Dutch Int. - Kwal. | 2024/03/14 15:40 | Finn Achthoven v Mats Duwel | L | 2-1 |
| Dutch Open - Kwal. | 2023/10/11 12:35 | Mats Duwel v Karl Sufryd | L | 1-2 |
| Nouvelle Aquitane Future Series | 2023/07/06 10:30 | Mats Duwel v Fu-Yang Chiang | L | 0-2 |
| Nantes Int. - Kwal. | 2023/06/15 11:15 | Mats Duwel v Chong King Lim | L | 0-2 |
| Slovenia Open - Kwal. | 2023/05/17 07:35 | Mats Duwel v Yu Huang | L | 0-2 |
| Malta Int. - Kwal. | 2024/04/04 11:15 | Charlie Castle v Justin Seibel | L | 2-1 |
| Portugal Int. - Kwal. | 2024/03/06 16:20 | Heng Lin Ngan v Justin Seibel | L | 2-0 |
| Bulgarian Int. - Kwal. | 2023/10/05 15:10 | Justin Seibel v Niilo Nyqvist | L | 0-2 |
| Bulgarian Int. - Kwal. | 2023/10/05 13:00 | Justin Seibel v Helmer Andersson | W | 2-1 |
| Bulgarian Int. - Kwal. | 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. - Kwal. | 2023/09/28 18:30 | Szymon Stokfisz v Justin Seibel | W | 0-2 |
| Croatia Int. - Kwal. | 2023/09/28 08:10 | Justin Seibel v Arun Kumar Ashok Kumar | W | 2-1 |