Stadium: Center Court Round: 26 Ground: Hardcourt outdoor
| UTR Pro Sofia | 2023/09/09 06:30 | Ioannis Xilas v Janos Fekete | 0-1 |
| UTR Pro Sofia | 2023/09/08 06:30 | Ioannis Xilas v Hernando J E Isnardi | 2-6,2-6 |
| UTR Pro Sofia | 2023/09/07 08:00 | Ioannis Xilas v Aniss Rafiq | 6-4,6-2 |
| UTR Pro Sofia | 2023/09/06 07:17 | George Lazarov v Ioannis Xilas | 4-6,4-6 |
| UTR Pro Sofia | 2023/09/05 05:00 | Simeon Terziev v Ioannis Xilas | 2-6,0-0 |
| ITF M25 Herzlia | 2023/08/09 06:30 | Ioannis Xilas v Yshai Oliel | 6-4,3-6,4-6 |
| ITF M25 Herzlia | 2023/08/07 09:30 | Sean Kamyshev v Ioannis Xilas | 5-7,6-3,2-10 |
| ITF M25 Herzlia | 2023/08/06 06:30 | Alexander Pundel v Ioannis Xilas | 3-6,6-4,9-11 |
| ITF M25 Pazardzhik | 2023/10/03 10:15 | Neil Oberleitner v Sebastian Gima | 4-6,6-2,6-7 |
| ITF M25 Pazardzhik | 2023/09/26 07:45 | Sandro Kopp v Neil Oberleitner | 6-2,6-4 |
| Challenger Bad Waltersdorf | 2023/09/18 10:05 | Ergi Kirkin v Neil Oberleitner | 6-7,6-4,6-2 |
| Challenger Bad Waltersdorf | 2023/09/17 12:50 | Neil Oberleitner v Jacopo Berrettini | 6-1,7-6 |
| Challenger Szczecin | 2023/09/10 13:00 | Neil Oberleitner v Toby Alex Kodat | 3-6,6-1,3-6 |
| Challenger Tulln | 2023/09/05 13:15 | Neil Oberleitner v Lucas Miedler | 6-7,6-2,3-6 |
| Challenger Augsburg | 2023/08/21 08:00 | Hady Habib v Neil Oberleitner | 4-6,6-3,7-6 |
| Challenger Augsburg | 2023/08/20 08:00 | Neil Oberleitner v Constantin Bittoun Kouzmine | 6-2,6-4 |