| Challenger de Oeiras | 06/19 16:55 | 14 | [408] Sergey Fomin v Alexandar Lazarov [380] | Retired | |
| Challenger de Shymkent | 05/12 04:30 | 27 | [406] Alexandar Lazarov v Ulises Blanch [338] | Retired | |
| Challenger de Shymkent | 05/11 06:30 | 26 | [238] Alexander Shevchenko v Alexandar Lazarov [406] | 6-3,4-6,6-7 | |
| Challenger de Shymkent | 05/10 12:50 | 25 | [417] Yan Bondarevskiy v Alexandar Lazarov [406] | 6-4,6-7,5-7 | |
| Challenger de Shymkent | 05/09 05:35 | 19 | [406] Alexandar Lazarov v Arjun Kadhe [167] | 6-4,6-2 | |
| Challenger de Shymkent | 05/08 09:00 | 14 | [409] Alexandar Lazarov v Vladyslav Manafov [198] | 6-3,6-0 | |
| Challenger Split | 04/17 08:00 | 14 | [294] Johan Nikles v Alexandar Lazarov [411] | 6-3,7-5 | |
| Challenger de Barletta | 04/11 08:00 | 19 | [355] Miljan Zekic v Alexandar Lazarov [411] | 6-1,6-3 | |
| Challenger de Barletta | 04/10 10:00 | 14 | Giuseppe Tresca v Alexandar Lazarov | 3-6,2-6 | |
| Challenger de Oeiras | 04/05 12:30 | 25 | [208] Dimitar Kuzmanov v Alexandar Lazarov [411] | 7-6,0-6,6-2 | |
| Challenger de Oeiras | 04/04 12:50 | 19 | Alexandar Lazarov v Jan Choinski | 6-4,6-3 | |
| Challenger Oeiras Qual | 04/03 15:35 | 14 | [411] Alexandar Lazarov v Adam Pavlasek [461] | 6-3,6-1 | |
| ITF M25 Rovinj | 03/17 09:00 | 26 | [297] Eduard Esteve Lobato v Alexandar Lazarov [408] | 7-6,6-4 | |
| ITF M25 Rovinj | 03/16 08:55 | 25 | Alexandar Lazarov v Luka Mikrut | 6-4,6-3 | |
| ITF M25 Porec | 03/11 10:00 | 27 | Sebastian Gima v Alexandar Lazarov | 6-4,6-2 | |
| ITF M25 Porec | 03/10 11:30 | 26 | Louroi Martinez v Alexandar Lazarov | 4-6,4-6 | |
| ITF M25 Porec | 03/09 10:45 | 25 | Nikolaj Katic v Alexandar Lazarov | 0-6,5-7 | |
| Copa Davis | 03/05 18:05 | 45 | Alexandar Lazarov v Hernando J E Isnardi | Cancelled | |
| Copa Davis | 03/04 15:50 | 45 | Alexandar Lazarov v Adolfo Daniel Vallejo | 6-4,6-1 | |
| ITF M25 Antalya | 02/24 13:00 | 25 | [405] Alexandar Lazarov v Cezar Cretu [474] | 6-3,6-7,3-6 | |
| ITF M25 Antalya | 02/15 12:50 | 25 | [304] Javier Barranco Cosano v Alexandar Lazarov [411] | 7-5,3-6,7-5 | |
| Challenger de Forli - Clasificación | 01/09 18:25 | 14 | [405] Alexandar Lazarov v Gijs Brouwer [367] | 3-6,3-6 | |
| Challenger de Forlì | 01/04 09:00 | 25 | [405] Alexandar Lazarov v Cedrik-Marcel Stebe [227] | 6-7,3-6 | |
| Challenger de Forlì | 01/03 12:45 | 19 | [365] Adrian Andreev v Alexandar Lazarov [405] | 4-6,5-7 | |
| Challenger de Antalya | 12/10 07:00 | 27 | [413] Alexandar Lazarov v Evgenii Tiurnev [320] | 4-6,7-6,1-6 | |
| Challenger de Antalya | 12/09 07:00 | 26 | Andrey Chepelev v Alexandar Lazarov | 2-6,0-6 | |
| Challenger de Antalya | 12/08 11:20 | 25 | Alexandar Lazarov v Marsel Ilhan | 6-3,6-3 | |
| Challenger de Manama | 11/26 15:20 | 27 | [462] Alexandar Lazarov v Jay Clarke [231] | Retired | |
| Challenger de Manama | 11/25 11:30 | 26 | [462] Alexandar Lazarov v Nerman Fatic [310] | 6-3,7-6 | |
| Challenger de Manama | 11/23 11:20 | 25 | [164] Altug Celikbilek v Alexandar Lazarov [462] | 2-6,3-6 |
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.