| Campeonato de Europa del Este | 07/13 10:00 | - | [482] Alexandar Lazarov v Matej Sabanov [154] | 6-3,6-3 | |
| Campeonato de Europa del Este | 06/25 17:55 | 1 | [367] Nerman Fatic v Alexandar Lazarov [482] | 6-4,6-3 | |
| Campeonato de Europa del Este | 06/24 16:00 | 1 | Alexandar Lazarov v Hamad Medjedovic | 4-6,7-6,7-5 | |
| Campeonato de Europa del Este | 06/23 18:00 | 1 | [23] Dusan Lajovic v Alexandar Lazarov [482] | 7-6,4-6,4-6 | |
| Campeonato de Europa del Este | 06/17 18:00 | 1 | [466] Marko Miladinovic v Alexandar Lazarov [482] | 0-6,2-6 | |
| Campeonato de Europa del Este | 06/16 08:00 | 1 | Alexandar Lazarov v Pavle Daljev | 6-4,6-2 | |
| Campeonato de Europa del Este | 06/15 14:00 | - | [101] Emil Ruusuvuori v Alexandar Lazarov [482] | 6-1,6-4 | |
| Campeonato de Europa del Este | 06/15 13:20 | 1 | Emil Ruusuvuori v Alexandar Lazarov | 6-1,6-4 | |
| ITF M15 Doha | 03/12 11:55 | 26 | Pol Wattanakul v Alexandar Lazarov | 4-6,3-6 | |
| ITF M15 Doha | 03/11 15:40 | 25 | Shahbaaz Khan v Alexandar Lazarov | 1-6,2-6 | |
| Copa Davis | 03/08 02:50 | 45 | Julián Saborio v Alexandar Lazarov | Cancelled | |
| Copa Davis | 03/07 01:25 | 45 | Jesse Flores v Alexandar Lazarov | 5-7,6-4,3-6 | |
| ITF 15 Antalya | 02/16 08:20 | 27 | Alexandar Lazarov v Naoki Tajima | 7-6,4-6,6-10 | |
| ITF 15 Antalya | 02/15 12:50 | 26 | Alexandar Lazarov v Max Houkes | 6-4,6-4 | |
| ITF 15 Antalya | 02/15 08:55 | 25 | Alexandar Lazarov v Denis Klok | 6-4,7-5 | |
| ITF 15 Antalya | 02/08 07:00 | 28 | [359] Alexandar Lazarov v Michael Vrbensky [421] | 0-6,1-6 | |
| ITF 15 Antalya | 02/07 07:00 | 27 | [359] Alexandar Lazarov v Riccardo Bonadio [422] | 6-1,6-1 | |
| ITF 15 Antalya | 02/06 07:00 | 26 | Alexandar Lazarov v David Jorda Sanchis | 6-1,7-6 | |
| ITF 15 Antalya | 02/05 07:00 | 25 | Alexandar Lazarov v Juan Pablo Paz | 5-7,6-1,6-3 | |
| ITF 15 Antalya | 02/01 08:00 | 28 | [362] Alexandar Lazarov v Carlos Alcaraz [446] | 3-6,0-6 | |
| ITF 15 Antalya | 01/31 07:00 | 27 | [253] Marco Bortolotti v Alexandar Lazarov [362] | 6-1,6-7,2-6 | |
| ITF 15 Antalya | 01/30 09:35 | 26 | Taiyo Yamanaka v Alexandar Lazarov | 6-7,7-6,5-7 | |
| ITF 15 Antalya | 01/29 06:00 | 25 | Bogdan Ionut Apostol v Alexandar Lazarov | 7-6,5-7,3-6 | |
| ITF M15 Heraklion | 12/11 09:30 | 25 | Alexandar Lazarov v Peter Kobelt | Retired | |
| ITF M15 Heraklion | 12/06 10:15 | 27 | Alexandar Lazarov v Boris Pokotilov | 6-7,7-5,2-6 | |
| ITF M15 Heraklion | 12/05 10:10 | 26 | Alexandar Lazarov v Peter Kobelt | 6-3,2-6,6-3 | |
| ITF M15 Heraklion | 12/03 09:30 | 25 | Alexandar Lazarov v Pavel Shumeiko | 6-2,6-0 | |
| ITF M15 Heraklion | 11/29 10:05 | 27 | [479] Alexandar Lazarov v Yshai Oliel [432] | 2-6,2-6 | |
| ITF M15 Heraklion | 11/28 08:00 | 26 | [479] Alexandar Lazarov v Marek Gengel [239] | 6-4,6-2 | |
| ITF M15 Heraklion | 11/27 11:20 | 25 | Alexandar Lazarov v Domagoj Biljesko | 6-1,4-6,6-4 |
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.