| ITF Qatar F5 | 12/13 13:50 | 27 | Alexandar Lazarov v Aslan Karatsev | 7-5,5-7,6-3 | |
| ITF Qatar F5 | 12/12 13:25 | 26 | Kristian Lozan v Alexandar Lazarov | 3-6,6-3,0-6 | |
| ITF Qatar F5 | 12/11 13:10 | 25 | Jabor Al Mutawa v Alexandar Lazarov | 3-6,1-6 | |
| ITF Qatar F4 | 12/05 14:25 | 26 | Zizou Bergs v Alexandar Lazarov | 6-4,6-1 | |
| ITF Qatar F4 | 12/04 18:20 | 25 | Alexandar Lazarov v Mousa Shanan Zayed | 6-2,6-1 | |
| ITF Thailand F9 | 11/15 03:00 | 27 | Roman Safiullin v Alexandar Lazarov | 7-6,6-4 | |
| ITF Thailand F9 | 11/14 02:00 | 26 | Alexandar Lazarov v Robert Strombachs | 6-3,6-1 | |
| ITF Thailand F9 | 11/12 05:40 | 25 | Alexandar Lazarov v Pattanapong Borisutpong | 6-1,6-1 | |
| ITF Thailand F8 | 11/05 04:30 | 25 | Seong Chan Hong v Alexandar Lazarov | 6-4,6-1 | |
| ITF Thailand F7 | 10/30 03:00 | 25 | Sanhui Shin v Alexandar Lazarov | 3-6,7-6,7-6 | |
| ITF Romania F10 | 08/24 10:45 | 27 | Nicolo Turchetti v Alexandar Lazarov | 2-6,7-5,6-1 | |
| ITF Romania F10 | 08/23 08:50 | 26 | Riccardo Maiga v Alexandar Lazarov | 2-6,3-6 | |
| ITF Romania F10 | 08/22 08:25 | 25 | Nicolae Frunza v Alexandar Lazarov | 2-6,3-6 | |
| ITF Romania F9 | 08/18 11:00 | 28 | Alexandar Lazarov v Cristian Rodriguez | 3-6,1-6 | |
| ITF Romania F9 | 08/17 08:00 | 27 | Dragos Dima v Alexandar Lazarov | 6-3,3-6,2-6 | |
| ITF Romania F9 | 08/16 06:00 | 26 | Bogdan Ionut Apostol v Alexandar Lazarov | Retired | |
| ITF Romania F9 | 08/14 07:00 | 25 | Scott Puodziunas v Alexandar Lazarov | 3-6,3-6 | |
| ITF Austria F5 | 08/03 08:00 | 27 | Alexandar Lazarov v Yuta Shimizu | Retired | |
| ITF Austria F5 | 08/02 08:00 | 26 | Alexandar Lazarov v Vital Flurin Leuch | 6-2,6-4 | |
| ITF Austria F5 | 08/01 09:55 | 25 | Frederik Press v Alexandar Lazarov | Retired | |
| ITF Austria F2 | 07/12 11:15 | 27 | Alexandar Lazarov v Johannes Haerteis | 3-6,2-6 | |
| ITF Austria F2 | 07/11 12:15 | 26 | David Pichler v Alexandar Lazarov | 6-2,5-7,1-6 | |
| ITF Austria F2 | 07/10 09:00 | 25 | Ergi Kirkin v Alexandar Lazarov | 5-7,4-6 | |
| ITF Tunisia F25 | 06/29 08:30 | 27 | Juan Ignacio Galarza v Alexandar Lazarov | 7-5,6-4 | |
| ITF Tunisia F25 | 06/28 09:35 | 26 | Simone Roncalli v Alexandar Lazarov | 3-6,6-3,3-6 | |
| ITF Tunisia F25 | 06/26 11:05 | 25 | Tristan Meraut v Alexandar Lazarov | 2-6,5-7 | |
| ITF Romania F2 | 05/31 14:00 | 26 | Alexandar Lazarov v Dragos Dima | 1-6,1-6 | |
| ITF Romania F2 | 05/29 08:00 | 25 | Alexandar Lazarov v Vladyslav Orlov | 6-0,6-0 | |
| ITF Romania F1 | 05/25 08:30 | 27 | Dragos Dima v Alexandar Lazarov | Retired | |
| ITF Romania F1 | 05/24 07:00 | 26 | Mathieu Perchicot v Alexandar Lazarov | 4-6,5-7 |
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.