| 2023-11-06 | Sofia | Hard | R32 | 80 |  Pavel Kotov | 709 |  Alexandar Lazarov (WC) | 3-6 6-1 6-2 | H2H | 3 | 107 | 3 | 0 | 74.7% | 64.4% | 55.0% | 2/4 |
| 2023-02-27 | Dubai | Hard | R32 | 46 |  Alexander Bublik | 301 | Alexandar Lazarov (Q) | 6-1 1-0 RET | H2H | 3 | 25 | 3 | 1 | 77.8% | 92.9% | 75.0% | 0/0 |
| 2022-09-26 | Sofia | Hard | R16 | 30 |  Lorenzo Musetti (4) | 334 | Alexandar Lazarov (WC) | 6-7(5) 7-6(8) 6-2 | H2H | 3 | 161 | 8 | 2 | 69.3% | 82.9% | 58.1% | 4/5 |
| 2022-09-26 | Sofia | Hard | R32 | 334 | Alexandar Lazarov (WC) | 74 |  Jiri Lehecka | 7-5 6-3 | H2H | 3 | 90 | 6 | 1 | 65.2% | 74.4% | 65.2% | 1/2 |
| 2022-09-16 | Davis Cup WG2 R1: RSA vs BUL | Clay | RR | 332 | Alexandar Lazarov | 1310 |  Philip Henning | 6-0 6-1 | H2H | 3 | - | - | - | - | - | - | - |
| 2021-09-27 | Sofia | Hard | R32 | 37 |  Filip Krajinovic (5) | 462 | Alexandar Lazarov (WC) | 6-0 6-3 | H2H | 3 | 65 | 4 | 1 | 64.1% | 80.0% | 64.3% | 1/1 |
| 2020-03-06 | Davis Cup WG2 PO: CRC vs BUL | Hard | RR | 537 | Alexandar Lazarov | 1146 |  Jesse Flores | 7-5 4-6 6-3 | H2H | 3 | - | - | - | - | - | - | - |
| 2019-09-13 | Davis Cup G2 R1: RSA vs BUL | Hard | RR | 113 | Lloyd Harris | 527 | Alexandar Lazarov | 6-4 6-7(3) 6-3 | H2H | 3 | - | - | - | - | - | - | - |
| 2019-02-04 | Sofia | Hard | R32 | 26 |  Fernando Verdasco (6) | - | Alexandar Lazarov (Q) | 6-2 6-1 | H2H | 3 | 51 | 7 | 2 | 75.0% | 84.8% | 45.5% | 1/1 |
| 2017-02-06 | Sofia | Hard | R32 | 92 |  Radu Albot | 599 | Alexandar Lazarov (WC) | 7-6(0) 6-2 | H2H | 3 | 73 | 4 | 1 | 59.2% | 73.8% | 55.2% | 5/7 |
