| Baltic Tennis League | 2020/06/19 07:00 | Marcis Garuts v Gustavs Lukstins | 3-6,3-6 |
| Baltic Tennis League | 2020/06/12 07:00 | Arvis Berzins v Gustavs Lukstins | 6-2,4-6,6-1 |
| Baltic Tennis League | 2020/06/10 08:20 | Marcis Garuts v Gustavs Lukstins | 6-0,6-3 |
| Baltic Tennis League | 2020/06/05 10:15 | Marcis Garuts v Gustavs Lukstins | 3-6,7-5,4-6 |
| Baltic Tennis League | 2020/06/04 10:25 | Gustavs Lukstins v Arvis Berzins | 2-6,6-4,6-3 |
| Baltic Tennis League | 2020/06/03 07:00 | Gustavs Lukstins v Mikelis Libietis | 2-6,2-6 |
| Baltic Tennis League | 2020/06/02 07:00 | Gustavs Lukstins v Arturs Kazijevs | 6-3,6-4 |
| ITF Estonia F2 | 2018/10/27 08:00 | Nikola Slavic v Gustavs Lukstins | 6-0,6-3 |
| Baltic Tennis League | 2020/06/23 12:25 | Karlis Ozolins v Alexander Georg Mandma | 6-1,6-2 |
| ITF Estonia F3 | 2018/11/03 14:00 | Tim Heger v Alexander Georg Mandma | 6-4,6-0 |
| ITF Sweden F4 | 2018/09/22 10:30 | Erik Grevelius v Alexander Georg Mandma | 6-4,6-4 |