Stadium: Table 2
| WTT Contender Zagreb Quals | 2023/06/26 16:50 | Kay Stumper v Vincent Picard | L | 0-3 |
| WTT Contender Tunis Quals | 2023/06/21 10:45 | Florent Lambiet v Kay Stumper | L | 3-1 |
| WTT Contender Tunis Quals | 2023/06/20 11:45 | Tamas Lakatos v Kay Stumper | W | 1-3 |
| WTT Star Contender Bangkok Quals | 2023/04/24 11:40 | Kay Stumper v Cheng-Jui Kao | L | 0-3 |
| WTT Star Contender Bangkok Quals | 2023/04/24 03:50 | Kay Stumper v Man Ho Kwan | W | 3-1 |
| WTT Star Contender Bangkok Quals | 2023/04/23 05:05 | Samuel Walker v Kay Stumper | W | 0-3 |
| Ligue des Champions | 2023/04/03 18:50 | Kay Stumper v Takuya Jin | W | 3-0 |
| Ligue des Champions | 2023/03/31 18:15 | Cedric Nuytinck v Kay Stumper | W | 0-3 |
| WTT Contender Lima Quals | 2022/06/14 20:00 | Eduardo Mendoza v Rafael Turrini | L | 0-3 |