Stadium: Center Court Round: 25 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 Madrid | 2023/09/14 14:10 | Miguel Damas v Nikolay Nedelchev | 6-3,6-3 |
| ITF M25 Madrid | 2023/09/12 12:55 | Nikolay Nedelchev v Luke Simkiss | 6-3,4-6,7-5 |
| ITF M15 Budapest | 2023/09/07 10:20 | Mariano Tammaro v Nikolay Nedelchev | 6-4,6-3 |
| ITF M15 Budapest | 2023/09/05 11:40 | Nikolay Nedelchev v Vito Tonejc | 6-2,6-4 |
| ITF M15 Budapest | 2023/09/01 10:00 | Nikolay Nedelchev v Matyas Fuele | 4-6,3-6 |
| ITF M15 Budapest | 2023/08/31 08:00 | Matthew Summers v Nikolay Nedelchev | 1-6,4-6 |
| ITF M15 Budapest | 2023/08/29 12:00 | Attila Dominik Boros v Nikolay Nedelchev | 6-2,1-6,2-6 |
| ITF M15 Monastir | 2023/08/02 10:15 | Nikolay Nedelchev v Andrea Bacaloni | 4-6,1-6 |