| Lettland - Latvia International - Herrendoppel | 2023/09/02 09:30 | Datko/Schlevoigt v Beketov/Druzchenko | W | 2-0 |
| Lettland - Latvia International - Herrendoppel | 2023/09/01 13:20 | Datko/Schlevoigt v Gataullin/Xu | W | 2-0 |
| Lettland - Latvia International - Herrendoppel | 2023/09/02 07:40 | Dumler/Seibel v Gardon/Goulin | W | 2-1 |
| Lettland - Latvia International - Herrendoppel | 2023/09/01 15:00 | Dumler/Seibel v Li/Li | W | 2-1 |
| Lithuanian International - Herrendoppel | 2023/06/11 08:20 | Dumler/Seibel v Al Farizi/Joaquin | L | 0-2 |
| Lithuanian International - Herrendoppel | 2023/06/10 17:00 | Gardon/Lovang v Dumler/Seibel | W | 1-2 |
| Lithuanian International - Herrendoppel | 2023/06/10 11:45 | Daoudal/Fourcade v Dumler/Seibel | W | 0-2 |
| Lithuanian International - Herrendoppel | 2023/06/09 16:45 | Dumler/Seibel v Guildea/Pontanosa | W | 2-0 |
| Bonn Int. - Herrendoppel | 2023/06/02 10:20 | Gardon/Lovang v Dumler/Seibel | L | 2-1 |
| Bonn Int. - Herrendoppel | 2023/06/01 17:20 | Dumler/Seibel v Belarbi/Hamek | W | 2-0 |