Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2023/10/02 12:30 | Daniel Salazar v Vit Kalina | 7-6,4-6,8-10 |
| ITF - M15 Monastir | 2023/10/02 08:00 | Hugo Soares v Vit Kalina | 4-6,4-6 |
| ITF - M15 Monastir | 2023/10/01 08:00 | Louis Larue v Vit Kalina | 4-6,4-6 |
| ITF - M15 Monastir | 2023/09/28 10:20 | Constantin Bittoun Kouzmine v Vit Kalina | 6-2,6-3 |
| ITF - M15 Monastir | 2023/09/27 10:05 | Ludovico Vaccari v Vit Kalina | 0-6,5-7 |
| ITF M15 Trier | 2023/08/22 10:55 | Vit Kalina v Max Wiskandt | 5-7,3-6 |
| ITF - M15 Brcko | 2023/05/25 11:15 | Vit Kalina v Viacheslav Bielinskyi | 2-6,3-6 |
| ITF - M15 Brcko | 2023/05/24 11:55 | Vit Kalina v Csongor Hejjas | 6-0,6-0 |
| ITF M15 Arad | 2023/09/28 07:55 | Kai Wehnelt v Juan Pablo Paz | 3-6,7-6,3-6 |
| ITF M15 Arad | 2023/09/27 11:20 | Kai Wehnelt v Jan Hrazdil | 4-6,6-1,7-6 |
| ITF M15 Arad | 2023/09/26 11:55 | Kai Wehnelt v Jan Kupcic | 3-6,7-6,6-4 |
| Challenger Sibiu | 2023/09/18 07:00 | Filip Cristian Jianu v Kai Wehnelt | 6-0,7-5 |
| Challenger Sibiu | 2023/09/17 08:55 | Kai Wehnelt v Vladyslav Orlov | 7-5,6-7,6-4 |
| Challenger Szczecin | 2023/09/10 14:20 | Rudolf Molleker v Kai Wehnelt | 6-4,7-5 |
| Challenger Tulln | 2023/09/03 08:00 | Kai Wehnelt v Jahn, Jeremy | 4-6,4-6 |
| ITF M25 Poznan | 2023/08/26 09:00 | Kai Wehnelt v Georgii Kravchenko | 2-6,5-7 |