Stadium: Centre Court Round: 25 Ground: Clay
| Challenger Ostrava | 2023/04/23 08:30 | Timo Stodder v Sandro Kopp | 7-6,6-2 |
| Challenger Oeiras | 2023/04/16 11:10 | Petr Nouza v Sandro Kopp | 6-2,7-6 |
| ITF M25 - Trento | 2023/03/30 10:25 | Anton Matusevich v Sandro Kopp | 3-6,7-6,6-2 |
| ITF M25 - Trento | 2023/03/29 17:05 | Daniil Glinka v Sandro Kopp | 6-7,3-6 |
| ITF M25 - Montreal | 2023/03/16 13:55 | Tibo Colson v Sandro Kopp | 6-3,6-4 |
| ITF M25 - Montreal | 2023/03/10 15:30 | Ben Jones v Sandro Kopp | 6-7,7-5,6-2 |
| ITF M25 - Montreal | 2023/03/09 15:00 | Sebastian Gima v Sandro Kopp | 6-1,4-6,3-6 |
| ITF M25 - Montreal | 2023/03/08 19:30 | Drew Van Orderlain v Sandro Kopp | 1-6,3-6 |
| Challenger Prag | 2023/04/30 08:00 | Rudolf Molleker v Alexandar Lazarov | 7-5,4-6,7-6 |
| Challenger Oeiras | 2023/04/18 14:40 | Adrian Mannarino v Alexandar Lazarov | 5-7,7-5,6-2 |
| Challenger Split | 2023/04/10 09:30 | Elias Ymer v Alexandar Lazarov | 6-4,6-4 |
| Challenger Split | 2023/04/09 11:40 | Nikola Milojevic v Alexandar Lazarov | 3-6,2-6 |
| ATP Marrakech | 2023/04/02 12:10 | Alexandar Lazarov v Andrea Vavassori | 6-7,3-6 |
| Challenger Biel | 2023/03/22 10:00 | Kirill Kivattsev v Alexandar Lazarov | 6-4,6-7,6-3 |
| ATP Dubai | 2023/02/26 07:00 | Alexandar Lazarov v Francesco Passaro | 7-5,7-5 |
| ATP Dubai | 2023/02/25 09:15 | Zhizhen Zhang v Alexandar Lazarov | 1-6,6-7 |