| Internazionali di Polonia - Qual. | 2021/09/23 10:30 | Jonas Petkus v Dominik Kopriva | L | 0-2 |
| Latvia Int. Qual | 2021/08/26 15:00 | Shun Yang Lee v Jonas Petkus | L | 2-0 |
| Latvia Int. Qual | 2021/08/26 09:40 | Pauls E Rozenvalds v Jonas Petkus | W | 0-2 |
| Internazionali di Lituania - Qual. | 2019/06/07 06:30 | Jonas Petkus v Magnus Klinggaard | L | 0-2 |
| Internazionali di Lituania - Qual. | 2022/06/09 07:10 | Dumindu Abeywickrama v Andrei Don | W | 2-1 |