| Slovak Open - Kval | 04/17 09:20 | - | Sebastian Kadlec v Michael Tomic | L | 0-2 | |
| Polish Open - Kval | 03/20 08:35 | - | Sebastian Kadlec v Mateusz Danielak | L | 0-2 | |
| Ungern Int. - Kval | 11/01 17:20 | - | Sebastian Kadlec v Dominik Kopriva | L | 1-2 | |
| Ungern Int. - Kval | 11/01 11:30 | - | Michal Szczypka v Sebastian Kadlec | W | 1-2 | |
| Czech Open - Kval | 10/19 10:30 | - | Kyrylo Leonov v Sebastian Kadlec | L | 2-0 | |
| Kroatien Int. - Kval | 09/28 12:15 | - | Sebastian Kadlec v Kai Niederhuber | L | 0-2 | |
| Slovenien - Future Series - Kval | 09/07 09:20 | - | Sebastian Kadlec v Ivan Druzchenko | L | 0-2 | |
| Litauen - Int. - Kval | 06/08 09:05 | - | Yegor Romaniuk v Sebastian Kadlec | L | 2-0 | |
| Dutch International - Kval | 04/13 08:50 | - | Marcus Viscovich v Sebastian Kadlec | L | 2-0 | |
| Polish Open - Kval | 03/22 09:45 | - | Sebastian Kadlec v Aaron Sonnenschein | L | 0-2 | |
| Portugal Int. - Kval | 03/08 12:10 | - | Sebastian Kadlec v Joonas Korhonen | L | 0-2 | |
| Polish Int. - Kval | 09/21 14:20 | - | Sebastian Kadlec v Kuan Lin Kuo | L | 0-2 |