Stadium: Court 5 Round: 14 Ground: Clay
| ITF M15 Kottingbrunn | 2023/08/19 08:00 | Matej Dodig v Neil Oberleitner | 2-6,6-3,6-2 |
| ITF M15 Kottingbrunn | 2023/08/18 11:30 | Neil Oberleitner v Luka Mikrut | 2-6,6-4,7-6 |
| ITF M15 Kottingbrunn | 2023/08/17 09:35 | Neil Oberleitner v Yannik Kelm | 6-4,7-6 |
| Challenger Banja Luka | 2023/08/07 12:20 | Stefan Popovic v Neil Oberleitner | 6-4,6-2 |
| Challenger Liberec | 2023/07/30 08:00 | Dominik Recek v Neil Oberleitner | 3-6,6-4,6-4 |
| Challenger Astana | 2023/07/27 07:25 | Alexander Zgirovsky v Neil Oberleitner | 7-6,6-2 |
| Challenger Astana | 2023/07/25 05:35 | Neil Oberleitner v Sidharth Rawat | 6-1,6-2 |
| Challenger Tampere | 2023/07/17 09:00 | Remy Bertola v Neil Oberleitner | 4-6,6-3,6-2 |
| ITF M25 Koksijde | 2023/08/17 13:55 | Mariano Kestelboim v Constantin Bittoun Kouzmine | 6-4,6-2 |
| ITF M25 Koksijde | 2023/08/15 14:35 | Alen Moritz Hodzic v Constantin Bittoun Kouzmine | 4-6,6-4,1-6 |
| Challenger Liberec | 2023/08/02 08:00 | Francisco Comesana v Constantin Bittoun Kouzmine | 6-1,6-3 |
| Challenger Liberec | 2023/07/31 08:00 | Constantin Bittoun Kouzmine v Dominik Recek | 5-7,7-6,6-0 |
| Challenger Segovia | 2023/07/24 10:30 | Constantin Bittoun Kouzmine v Miguel Damas | 3-6,7-5,6-7 |
| Challenger Segovia | 2023/07/23 09:35 | Constantin Bittoun Kouzmine v Arjun Kadhe | 6-3,4-6,6-3 |
| Challenger Pozoblanco | 2023/07/16 18:00 | Miguel Damas v Constantin Bittoun Kouzmine | 6-0,6-1 |
| Challenger Braunschweig | 2023/07/11 16:20 | Timofey Skatov v Constantin Bittoun Kouzmine | 6-3,6-1 |