| WTT Contender - Rio - Kwalifikacje | 2023/08/08 19:40 | Ricardo Walther v Kay Stumper | L | 3-2 |
| WTT Contender - Rio - Kwalifikacje | 2023/08/07 21:20 | Carlo Rossi v Kay Stumper | W | 2-3 |
| WTT Contender Lima - Kwalifikacje | 2023/08/02 21:35 | Kay Stumper v Ricardo Walther | L | 1-3 |
| WTT Contender Lima - Kwalifikacje | 2023/08/01 23:30 | Kay Stumper v Eduardo Mendoza | W | 3-0 |
| WTT Contender Zagreb Quals | 2023/06/26 16:50 | Kay Stumper v Vincent Picard | L | 0-3 |
| WTT Contender - Tunis - Kwalifikacje | 2023/06/21 10:45 | Florent Lambiet v Kay Stumper | L | 3-1 |
| WTT Contender - Tunis - Kwalifikacje | 2023/06/20 11:45 | Tamas Lakatos v Kay Stumper | W | 1-3 |
| WTT Star Contender - Bangkok - Kwalifikacje | 2023/04/24 11:40 | Kay Stumper v Cheng-Jui Kao | L | 0-3 |
| WTT Feeder - Olomouc | 2023/08/24 14:35 | Cedric Nuytinck v Pavel Sirucek | L | 3-0 |
| TT Star Series | 2023/08/17 14:45 | Jiri Martinko v Pavel Sirucek | W | 1-3 |
| TT Star Series | 2023/08/17 12:45 | Pavel Sirucek v Tomas Konecny | W | 3-1 |
| TT Star Series | 2023/08/17 10:45 | Lubomir Jancarik v Pavel Sirucek | W | 1-3 |
| TT Star Series | 2023/08/17 08:15 | Jiri Martinko v Pavel Sirucek | W | 1-3 |
| TT Star Series | 2023/08/17 06:35 | Francisco Sanchi v Pavel Sirucek | W | 1-3 |
| TT Star Series | 2023/08/16 13:45 | Pavel Sirucek v Tomas Martinko | W | 3-0 |
| TT Star Series | 2023/08/16 11:45 | Pavel Sirucek v Tomas Konecny | L | 1-3 |