Stadium: Cancha 5 Ground: Clay
| ITF Bulgaria F1 | 2018/05/18 07:00 | Lucas Catarina v Lazarov, Alexandar | 7-6,6-2 |
| Challenger Lima | 2021/10/24 16:00 | Lucas Catarina v Ballotta, Gianluca | 6-3,7-5 |
| Bogota, Colombia | 2021/10/20 17:45 | Nicolas Mejia v Lucas Catarina | 6-4,7-5 |
| Bogota, Colombia | 2021/10/18 18:35 | Lucas Catarina v Jaziri, Malek | 6-2,6-3 |
| Challenger - Santiago | 2021/10/12 20:15 | Lucas Catarina v Tomas Barrios Vera | 5-7,2-6 |
| Challenger - Santiago | 2021/10/11 16:50 | Lucas Catarina v Nicolas Alvarez | 6-1,3-6,4-6 |
| Challenger Santiago Qual | 2021/10/10 15:45 | Lucas Catarina v Barrientos, Nicolas | 6-4,7-5 |
| Challenger - Santiago | 2021/10/05 15:35 | Hugo Dellien v Lucas Catarina | 4-6,6-3,6-3 |
| Challenger Lima | 2021/09/27 19:10 | Lucas Catarina v Renzo Olivo | 4-6,4-6 |
| Challenger Lima | 2021/10/24 16:00 | Luca Castelnuovo v Lazarov, Alexandar | 4-6,5-7 |
| Bogota, Colombia | 2021/10/17 16:30 | Lazarov, Alexandar v Stevens, Bart | 6-1,3-6,3-6 |
| ITF M15 Sozopol | 2021/10/08 07:00 | Lazarov, Alexandar v Billy Harris | 4-6,2-6 |
| ITF M15 Sozopol | 2021/10/07 07:00 | Lazarov, Alexandar v Adam Jurajda | 6-1,6-4 |
| ITF M15 Sozopol | 2021/10/05 10:00 | Lazarov, Alexandar v Petr Nesterov | 6-1,6-1 |
| Sofia, Bulgaria | 2021/09/29 15:35 | Lazarov, Alexandar v Filip Krajinovic | 0-6,3-6 |
| Challenger Kyiv | 2021/09/05 08:00 | Aleksandr Braynin v Lazarov, Alexandar | 7-6,6-4 |
| UTR Pro Tennis Series Sofia | 2021/09/04 06:00 | Lazarov, Alexandar v Dzhavakian, Yurii | 6-3,6-7,5-1 |