Stadium: Centre Court Round: 25 Ground: Clay
| Irving, USA | 2017/03/14 18:30 | Lacko, Lukas v Stakhovsky, Sergiy | 6-3,4-6,6-3 |
| Challenger - Bratislava | 2016/11/09 15:30 | Lacko, Lukas v Stakhovsky, Sergiy | 5-7,6-7 |
| Challenger - Hambourg | 2020/10/26 12:20 | Lacko, Lukas v Nikola Milojevic | 5-7,4-6 |
| Challenger Ismaning | 2020/10/21 18:50 | Gunneswaran, Prajnesh v Lacko, Lukas | 6-4,5-7,6-4 |
| Challenger Ismaning | 2020/10/20 14:00 | Lacko, Lukas v Max Hans Rehberg | 5-7,7-6,6-1 |
| Challenger Biella | 2020/09/29 08:00 | Lacko, Lukas v Horansky, Filip | 2-6,2-6 |
| Open de France | 2020/09/21 08:00 | Lacko, Lukas v Oscar Otte | 6-4,1-6,2-6 |
| Challenger - Ostrava | 2020/09/04 11:45 | Botic Van De Zandschulp v Lacko, Lukas | 5-7,6-3,6-1 |
| Challenger - Ostrava | 2020/09/03 08:00 | Lacko, Lukas v Frederico Ferreira Silva | 6-4,7-5 |
| Challenger - Ostrava | 2020/08/31 08:00 | Lacko, Lukas v Horansky, Filip | 7-6,6-2 |
| Istanbul, Turkey | 2020/10/19 11:00 | Stakhovsky, Sergiy v Jay Clarke | 4-6,0-6 |
| Open de France | 2020/09/21 14:50 | Stakhovsky, Sergiy v Daniel Elahi Galan | 6-7,3-6 |
| Challenger - Ostrava | 2020/08/31 10:00 | Polansky, Peter v Stakhovsky, Sergiy | 6-4,4-6,3-6 |
| Challenger Prague 2 | 2020/08/26 10:25 | Tallon Griekspoor v Stakhovsky, Sergiy | 6-1,6-1 |
| Challenger Prague 2 | 2020/08/24 13:20 | Frederico Ferreira Silva v Stakhovsky, Sergiy | 6-2,6-7,6-7 |
| Challenger - Prague | 2020/08/16 10:00 | Stakhovsky, Sergiy v Tomas Machac | 5-7,2-6 |
| Eastern European Championship | 2020/06/17 08:00 | Stakhovsky, Sergiy v Stipic, Filip | 6-1,6-3 |
| Eastern European Championship | 2020/06/16 14:40 | Stakhovsky, Sergiy v Brkic, Tomislav | 7-5,5-7,5-7 |