| ITF M15 Sofia | 2023/07/04 07:00 | Simeon Terziev v George Lazarov | 6-3,1-6,6-3 |
| ITF M15 Sofia | 2023/07/04 07:00 | Simeon Terziev v George Lazarov | 6-3,1-6,6-3 |
| ITF M15 Kursumlijska Banja | 2023/06/18 07:00 | George Lazarov v Piotr Czaczkowski | 4-6,0-6 |
| ITF M15 Sozopol | 2022/10/19 09:05 | George Lazarov v Vladyslav Orlov | 2-6,2-6 |
| ITF M15 Sozopol | 2022/10/09 09:00 | Jasza Szajrych v George Lazarov | 6-3,6-0 |
| ITF M15 Sozopol | 2022/10/05 09:10 | George Lazarov v Petr Nesterov | 2-6,3-6 |
| ITF M25 Pirot | 2022/09/20 08:00 | George Lazarov v Lazar Vojinovic | 2-6,1-6 |
| ITF M25 Pirot | 2022/09/19 10:50 | George Lazarov v Ognjen Pavlovic | 6-3,6-0 |
| ITF M25 Pirot | 2022/09/18 11:30 | George Lazarov v Nikola Kolyachev | 6-4,4-6,10-5 |
| ITF M15 Curtea de Arges | 2023/08/08 07:30 | Simeon Terziev v Vlad Cristian Breazu | 1-6,3-6 |
| ITF M15 Curtea de Arges | 2023/08/07 08:30 | Simeon Terziev v Tudor S Gheorghita | 4-6,6-3,10-6 |
| ITF M25 Pitesti | 2023/08/02 11:40 | Simeon Terziev v Bor Artnak | 2-6,4-6 |
| ITF M25 Pitesti | 2023/07/31 15:30 | Simeon Terziev v Tommaso Carnevale-Miino | 3-6,6-3,10-8 |
| ITF M25 Pitesti | 2023/07/30 08:30 | Simeon Terziev v Vlad Stoica | 7-6,6-3 |
| ITF M25 Bacau | 2023/07/25 09:15 | Simeon Terziev v William Jucha | 6-7,0-6 |
| ITF M25 Bacau | 2023/07/24 09:00 | Simeon Terziev v Luca Nari | 3-6,6-3,10-2 |
| ITF M15 Sofia | 2023/07/06 06:30 | Simeon Terziev v Jonathan Mridha | 4-6,4-6 |