Round: 1
| Davis Kupa | 2020/03/06 15:00 | Karlis Ozolins v Mohamed Safwat | 6-7,5-7 |
| ITF M15 Trnava | 2020/03/01 10:00 | Danylo Kalenichenko v Karlis Ozolins | 6-4,6-4 |
| ITF M15 Trnava | 2020/02/29 10:00 | Vitaliy Sachko v Karlis Ozolins | 3-6,5-7 |
| ITF M15 Trnava | 2020/02/28 10:00 | Petr Michnev v Karlis Ozolins | 6-7,6-7 |
| ITF M15 Trnava | 2020/02/27 11:15 | Karlis Ozolins v Dalibor Svrcina | 3-6,6-4,6-4 |
| ITF M15 Trnava | 2020/02/26 14:10 | Jakob Aichhorn v Karlis Ozolins | 6-4,6-7,3-6 |
| ITF Egypt F9 | 2018/03/11 12:00 | Evan Hoyt v Karlis Ozolins | 7-6,6-3 |
| ITF Egypt F8 | 2018/03/03 14:30 | Evan Hoyt v Karlis Ozolins | 6-3,6-3 |
| 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 |