| TT Cup (2023) | 02/05 08:55 | - | Karel Kastner v Pavel Vilhelm | W | 3-2 | |
| TT Cup (2023) | 02/05 07:55 | - | Karel Kastner v Vladimir Libovicky | W | 3-1 | |
| TT Cup (2023) | 02/04 18:20 | - | Karel Kastner v Vojtech Strouhal | W | 3-2 | |
| TT Cup (2023) | 02/04 17:20 | - | Pavel Vilhelm v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 02/04 16:50 | - | Jaroslav Brynych v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 02/04 15:50 | - | Karel Kastner v Vojtech Strouhal | W | 3-1 | |
| TT Cup (2023) | 02/04 14:50 | - | Zdenek Bron v Karel Kastner | L | 3-2 | |
| TT Cup (2023) | 02/04 13:50 | - | Karel Kastner v Vladimir Libovicky | W | 3-1 | |
| TT Cup (2023) | 02/04 12:20 | - | Vlastimil Kocvara v Karel Kastner | W | 1-3 | |
| TT Cup (2023) | 02/04 11:50 | - | Zdenek Bron v Karel Kastner | L | 3-0 | |
| TT Cup (2023) | 02/01 18:20 | - | Karel Kastner v Pavel Vyvial | L | 0-3 | |
| TT Cup (2023) | 02/01 17:50 | - | Karel Kastner v Pavel Vilhelm | L | 2-3 | |
| TT Cup (2023) | 02/01 16:20 | - | Pavel Vyvial v Karel Kastner | W | 0-3 | |
| TT Cup (2023) | 02/01 15:50 | - | Vojtech Strouhal v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 01/31 18:20 | - | Vojtech Strouhal v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 01/31 17:50 | - | Karel Kastner v Vojtech Strouhal | L | 0-3 | |
| TT Cup (2023) | 01/31 16:20 | - | Pavel Vilhelm v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 01/31 15:50 | - | Gustav Lomsky v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 01/25 18:20 | - | Karel Kastner v Vlastimil Kocvara | L | 2-3 | |
| TT Cup (2023) | 01/25 17:50 | - | Martin Novak v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 01/25 16:50 | - | Karel Kastner v Radek Libovicky | L | 0-3 | |
| TT Cup (2023) | 01/25 15:20 | - | Vlastimil Kocvara v Karel Kastner | W | 2-3 | |
| TT Cup (2023) | 01/24 18:20 | - | Vojtech Strouhal v Karel Kastner | L | 3-2 | |
| TT Cup (2023) | 01/24 17:50 | - | Vojtech Strouhal v Karel Kastner | W | 1-3 | |
| TT Cup (2023) | 01/24 16:50 | - | Karel Kastner v Pavel Vilhelm | L | 0-3 | |
| TT Cup (2023) | 01/24 15:20 | - | Radek Libovicky v Karel Kastner | L | 3-1 | |
| TT Cup (2023) | 01/23 18:50 | - | Vladimir Libovicky v Karel Kastner | L | 3-0 | |
| TT Cup (2023) | 01/23 17:20 | - | Karel Kastner v Pavel Vyvial | W | 3-1 | |
| TT Cup (2023) | 01/23 16:20 | - | Karel Kastner v Vojtech Strouhal | W | 3-1 | |
| TT Cup (2023) | 01/23 15:20 | - | Karel Kastner v Vladimir Libovicky | L | 1-3 |