| TT Star Series | 2020/12/08 10:45 | Seibert, Jakub v Grela, Artur | W | 0-3 |
| Challenger Ochsenhausen | 2022/01/09 16:22 | 시루케크, 파벨 v Grela, Artur | W | 1-3 |
| Challenger Ochsenhausen | 2022/01/07 17:03 | 왕, 쩡이 v Grela, Artur | W | 2-3 |
| Others | 2021/12/21 17:09 | 플로라스, 로버트 v Grela, Artur | L | 3-2 |
| Oman Open U21 Women | 2021/11/12 11:40 | 플레테아, 크리스티안 v Grela, Artur | L | 4-1 |
| Oman Open U21 Women | 2021/11/11 15:35 | 레바자크, 디미트리 v Grela, Artur | L | 4-2 |
| Oman Open U21 Women | 2021/11/10 18:50 | Grela, Artur v 젤린카, 야쿱 | L | 3-4 |
| Oman Open U21 Women | 2021/11/10 14:40 | 오시로, 페드로 v Grela, Artur | W | 0-4 |
| Oman Open U21 Women | 2021/11/10 10:30 | Grela, Artur v 치아노우스키, 미하일 | W | 4-0 |
| TT Star Series | 2021/12/14 11:15 | Seibert, Jakub v Tomas Beran | W | 3-0 |
| TT Star Series | 2021/12/14 09:15 | Seibert, Jakub v Tymofieiev, Oleksandr | W | 3-1 |
| TT Star Series | 2021/12/13 13:15 | Seibert, Jakub v David, Petr | L | 1-3 |
| TT Star Series | 2021/12/13 11:45 | Seibert, Jakub v 마틴코, 지리 | L | 1-3 |
| TT Star Series | 2021/12/13 09:15 | 아마토, 안토니노 v Seibert, Jakub | W | 1-3 |
| TT Star Series | 2021/12/13 07:35 | Seibert, Jakub v 블링카, 미첼 | L | 0-3 |
| TT Star Series | 2021/12/07 11:15 | Seibert, Jakub v 브라블릭, 지리 | L | 0-3 |
| TT Star Series | 2021/12/07 09:15 | Seibert, Jakub v 가브라스, 안토닌 | L | 0-3 |