| TT Cup (2023) | 11/08 11:20 | - | Stepan Koci v Jan Trefny | L | 3-2 | |
| TT Cup (2023) | 11/05 15:25 | - | Jan Trefny v Stepan Koci | W | 3-2 | |
| TT Cup (2023) | 11/05 14:25 | - | Stepan Koci v Jan Trefny | W | 0-3 | |
| TT Cup (2023) | 11/05 13:25 | - | Jan Trefny v Josef Pistora | W | 3-0 | |
| TT Cup (2023) | 11/05 11:55 | - | Vladimir Milata Jnr v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 11/02 15:35 | - | Martin Juhasz v Jan Trefny | L | 3-1 | |
| TT Cup (2023) | 11/02 14:25 | - | Jan Trefny v Martin Juhasz | L | 2-3 | |
| TT Cup (2023) | 11/02 12:55 | - | Stepan Koci v Jan Trefny | L | 3-2 | |
| TT Cup (2023) | 11/02 12:25 | - | Josef Pistora v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 11/01 11:30 | - | Christian Kratochvil v Jan Trefny | W | 2-3 | |
| TT Cup (2023) | 11/01 10:25 | - | Vojtech Waldhauser v Jan Trefny | L | 3-1 | |
| TT Cup (2023) | 11/01 09:25 | - | Jan Trefny v Martin Topol | W | 3-2 | |
| TT Cup (2023) | 11/01 07:55 | - | Christian Kratochvil v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 10/22 14:00 | - | Jan Trefny v Vojtech Waldhauser | L | 1-3 | |
| TT Cup (2023) | 10/22 13:25 | - | Jan Trefny v Stepan Koci | L | 0-3 | |
| TT Cup (2023) | 10/22 11:55 | - | Petr Priscak v Jan Trefny | L | 3-2 | |
| TT Cup (2023) | 10/22 11:25 | - | Vojtech Waldhauser v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 10/17 14:00 | - | Jan Trefny v Christian Kratochvil | L | 1-3 | |
| TT Cup (2023) | 10/17 12:50 | - | Zdenek Dusek v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 10/17 11:50 | - | Jan Trefny v Christian Kratochvil | W | 3-2 | |
| TT Cup (2023) | 10/17 10:20 | - | Jaroslav Zamyslicky v Jan Trefny | W | 0-3 | |
| TT Cup (2023) | 10/16 13:55 | - | Christian Kratochvil v Jan Trefny | W | 2-3 | |
| TT Cup (2023) | 10/16 12:20 | - | Jaroslav Zamyslicky v Jan Trefny | W | 0-3 | |
| TT Cup (2023) | 10/16 11:50 | - | Stepan Koci v Jan Trefny | W | 2-3 | |
| TT Cup (2023) | 10/16 10:50 | - | Jan Trefny v Christian Kratochvil | L | 2-3 | |
| TT Cup (2023) | 10/12 18:15 | - | Jan Trefny v Zbynek Vyskocil | W | 3-2 | |
| TT Cup (2023) | 10/12 17:10 | - | Zbynek Vyskocil v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 10/12 16:10 | - | Jan Trefny v Lukas Vich | W | 3-1 | |
| TT Cup (2023) | 10/12 14:40 | - | Pavel Kocabek v Jan Trefny | W | 1-3 | |
| TT Cup (2023) | 10/11 13:55 | - | Stepan Koci v Jan Trefny | W | 0-3 |