| TT Cup (2023) | 12/09 17:50 | - | Zbynek Vyskocil v Jan Trefny | W | 0-3 | |
| TT Cup (2023) | 12/09 16:50 | - | Jan Trefny v Kamil Pittner | W | 3-1 | |
| TT Cup (2023) | 12/09 15:20 | - | Josef Pistora v Jan Trefny | W | 0-3 | |
| TT Cup (2023) | 12/01 18:30 | - | Jan Trefny v Pavel Verner | W | 3-2 | |
| TT Cup (2023) | 12/01 17:20 | - | Jan Trefny v Pavel Verner | W | 3-0 | |
| TT Cup (2023) | 12/01 16:20 | - | Jan Trefny v Josef Pistora | L | 1-3 | |
| TT Cup (2023) | 12/01 15:20 | - | Jan Trefny v Tomas Krejci | L | 1-3 | |
| TT Cup (2023) | 11/27 14:55 | - | Jan Trefny v Petr Priscak | L | 0-3 | |
| TT Cup (2023) | 11/27 13:20 | - | Jan Trefny v Petr Priscak | W | 3-1 | |
| TT Cup (2023) | 11/27 12:20 | - | Jan Trefny v Martin Dvorak | L | 2-3 | |
| TT Cup (2023) | 11/27 11:20 | - | Jan Trefny v Martin Prusa | W | 3-0 | |
| TT Cup (2023) | 11/26 15:10 | - | Jan Trefny v Pavel Verner | L | 2-3 | |
| TT Cup (2023) | 11/26 13:55 | - | Pavel Verner v Jan Trefny | L | 3-2 | |
| TT Cup (2023) | 11/26 13:25 | - | Petr Priscak v Jan Trefny | L | 3-0 | |
| TT Cup (2023) | 11/26 12:25 | - | Jan Trefny v Tomas Krejci | W | 3-1 | |
| TT Cup (2023) | 11/26 10:55 | - | Jan Trefny v Tomas Krejci | L | 0-3 | |
| TT Cup (2023) | 11/26 09:20 | - | Jan Trefny v Martin Topol | W | 3-0 | |
| TT Cup (2023) | 11/26 08:20 | - | Jan Trefny v Zbynek Vyskocil | L | 2-3 | |
| TT Cup (2023) | 11/26 07:20 | - | Jan Trefny v Tomas Krejci | W | 3-1 | |
| TT Cup (2023) | 11/23 14:55 | - | Vojtech Waldhauser v Jan Trefny | L | 3-0 | |
| TT Cup (2023) | 11/23 13:50 | - | Jan Trefny v Roman Pokorny | W | 3-2 | |
| TT Cup (2023) | 11/23 12:20 | - | Stepan Koci v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 11/23 11:50 | - | Vojtech Waldhauser v Jan Trefny | L | 3-1 | |
| TT Cup (2023) | 11/13 15:35 | - | Christian Kratochvil v Jan Trefny | L | 3-1 | |
| TT Cup (2023) | 11/13 14:25 | - | Christian Kratochvil v Jan Trefny | L | 3-0 | |
| TT Cup (2023) | 11/13 13:50 | - | Jan Trefny v Jan Eibich | W | 3-0 | |
| TT Cup (2023) | 11/13 11:20 | - | Zdenek Dusek v Jan Trefny | W | 2-3 | |
| TT Cup (2023) | 11/08 14:25 | - | Christian Kratochvil v Jan Trefny | L | 3-2 | |
| TT Cup (2023) | 11/08 13:50 | - | Christian Kratochvil v Jan Trefny | L | 3-1 | |
| TT Cup (2023) | 11/08 12:50 | - | Jan Trefny v Vojtech Waldhauser | L | 0-3 |