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