| ITF - Alemanha F13 | 10/06 10:00 | 26 | Vadym Ursu v Alexandar Lazarov | 3-6,6-7 | |
| ITF - Alemanha F13 | 10/05 09:15 | 25 | Alexandar Lazarov v Karlo Cubelic | 6-3,6-4 | |
| ITF Serbia F8 | 09/25 09:00 | 29 | Alexandar Lazarov v Filip Veger | Retired | |
| ITF Serbia F8 | 09/24 09:00 | 28 | Alexandar Lazarov v Mike Urbanija | 6-1,3-6,6-4 | |
| ITF Serbia F8 | 09/23 10:05 | 27 | Alexandar Lazarov v Davide Galoppini | 1-6,7-6,6-2 | |
| ITF Serbia F8 | 09/22 08:00 | 26 | Mate Delic v Alexandar Lazarov | 2-6,3-6 | |
| ITF Serbia F8 | 09/20 08:00 | 25 | Alexandar Lazarov v Darko Jandric | 6-1,6-4 | |
| ITF Serbia F7 | 09/17 12:00 | 28 | Lorenzo Giustino v Alexandar Lazarov | 6-4,6-4 | |
| ITF Serbia F7 | 09/16 09:00 | 27 | Alexandar Lazarov v Maciej Rajski | 1-6,6-4,6-2 | |
| ITF Serbia F7 | 09/15 08:00 | 26 | Petar Trendafilov v Alexandar Lazarov | 3-6,3-6 | |
| ITF Serbia F7 | 09/13 08:00 | 25 | Alexandar Lazarov v Tommaso Gabrieli | 6-4,3-6,6-4 | |
| ITF Serbia F6 | 09/07 11:25 | 25 | Kristijan Mesaros v Alexandar Lazarov | 7-6,6-2 | |
| ITF - Sérvia F5 | 08/17 14:00 | 25 | Alexandar Lazarov v Boris Butulija | 6-3,6-7,4-6 | |
| Taça Davis | 07/17 12:15 | - | Mohamed Aziz Dougaz v Alexandar Lazarov | 6-4,4-6,6-7 | |
| Taça Davis | 07/15 13:20 | - | Malek Jaziri v Alexandar Lazarov | 6-4,6-4,6-1 | |
| ITF - Bulgária F1 | 05/21 09:20 | 28 | David Perez Sanz v Alexandar Lazarov | Retired | |
| ITF - Bulgária F1 | 05/20 08:55 | 27 | Alexandar Lazarov v Martin Beran | 7-5,6-1 | |
| ITF - Bulgária F1 | 05/19 07:30 | 26 | Alexander Igoshin v Alexandar Lazarov | 3-6,6-2,3-6 | |
| ITF - Bulgária F1 | 05/17 07:30 | 25 | Alexandar Lazarov v Giovanni Rizzuti | 6-1,6-4 | |
| ITF - Grécia F3 | 04/02 07:00 | 62 | Alexandar Lazarov v Robert Galloway | 2-6,1-6 | |
| Taça Davis | 03/06 13:20 | - | Altug Celikbilek v Alexandar Lazarov | 6-4,4-6,4-6 | |
| Taça Davis | 03/04 13:35 | - | Marsel Ilhan v Alexandar Lazarov | 6-4,6-2,6-3 | |
| ITF - Grécia F8 | 10/21 07:55 | 25 | Matteo Berrettini v Alexandar Lazarov | 6-4,6-2 | |
| ITF - Grécia F7 | 10/13 07:00 | 25 | Alexandar Lazarov v Andre Biro | 5-7,4-6 |
Alexandar Lazarov (Bulgarian: Александър Лазаров, born 6 November 1997) is a Bulgarian professional tennis player. His highest singles ranking is No. 272 achieved on 14 November 2022, whilst his best doubles ranking is No. 359 achieved on 3 February 2020.