Stadium: Court 1 Round: 28 Ground: Clay
| Challenger - Meerbusch | 2023/08/07 10:00 | Georgii Kravchenko v Kai Wehnelt | 6-4,7-6 |
| ITF - M25 Poznan | 2023/08/25 09:00 | Kai Wehnelt v Sander Jong | 7-6,6-3 |
| ITF - M25 Poznan | 2023/08/24 09:00 | Maks Kasnikowski v Kai Wehnelt | 4-6,4-6 |
| ITF - M25 Poznan | 2023/08/23 12:45 | Siim Troost v Kai Wehnelt | 7-6,0-6,0-6 |
| ITF - M25 Koksijde | 2023/08/14 12:00 | Kai Wehnelt v Luciano Emanuel Ambrogi | 3-6,3-6 |
| Challenger - Meerbusch | 2023/08/07 10:00 | Georgii Kravchenko v Kai Wehnelt | 6-4,7-6 |
| Challenger - Luedenscheid | 2023/07/31 15:25 | Duje Ajdukovic v Kai Wehnelt | 6-4,3-6,6-3 |
| Challenger - Luedenscheid | 2023/07/30 12:05 | Kai Wehnelt v Jose Pereira | 6-2,6-4 |
| ITF - M25 Kramsach | 2023/07/27 13:45 | Kai Wehnelt v Peter Heller | 5-7,4-6 |
| ITF - M25 Poznan | 2023/08/25 11:00 | Georgii Kravchenko v Maciej Rajski | 6-2,4-6,7-6 |
| ITF - M25 Poznan | 2023/08/24 10:40 | Alex M Pujolras v Georgii Kravchenko | 2-6,5-7 |
| ITF - M25 Poznan | 2023/08/23 09:55 | Georgii Kravchenko v Martin Zeljenka | 6-1,6-1 |
| Challenger - Meerbusch | 2023/08/07 13:15 | Guy Den Ouden v Georgii Kravchenko | 6-2,6-3 |
| Challenger - Meerbusch | 2023/08/07 10:00 | Georgii Kravchenko v Kai Wehnelt | 6-4,7-6 |
| Challenger - Luedenscheid | 2023/08/01 14:15 | Santiago Rodriguez Taverna v Georgii Kravchenko | 6-3,6-2 |
| Challenger - Luedenscheid | 2023/07/31 14:15 | Georgii Kravchenko v Wilson Leite | 6-2,6-1 |
| Challenger - Luedenscheid | 2023/07/30 10:30 | Maxime Chazal v Georgii Kravchenko | 2-6,2-6 |