| WTT Contender Rio Quals | 2023/08/07 21:20 | Carlo Rossi v Kay Stumper | W | 2-3 |
| WTT Feeder Dusseldorf | 2024/04/10 16:25 | Kay Stumper v Daeseong Cho | L | 2-3 |
| WTT Feeder Dusseldorf | 2024/04/10 11:45 | Cedric Nuytinck v Kay Stumper | W | 2-3 |
| WTT Star Contender Goa | 2024/01/25 10:10 | Jaehyun An v Kay Stumper | L | 3-0 |
| WTT Star Contender Goa Quals | 2024/01/24 11:45 | Mehdi Bouloussa v Kay Stumper | W | 1-3 |
| WTT Star Contender Goa Quals | 2024/01/23 12:10 | Kay Stumper v Yan-Cheng Huang | W | 3-2 |
| WTT Contender Doha Quals | 2024/01/16 14:10 | Panagiotis Gionis v Kay Stumper | L | 3-2 |
| WTT Contender Doha Quals | 2024/01/15 12:40 | Kay Stumper v Daniel Habesohn | W | 3-1 |
| WTT Contender Doha Quals | 2024/01/14 13:25 | Kay Stumper v Jeet Chandra | W | 3-1 |
| WTT Feeder Havirov Quals | 2024/04/14 18:45 | Andrea Landrieu v Carlo Rossi | L | 3-1 |
| WTT Feeder Havirov Quals | 2024/04/14 15:45 | Carlo Rossi v Simon Belik | W | 3-0 |
| WTT Feeder Havirov Quals | 2024/04/14 10:10 | Carlo Rossi v Javen Choong | W | 3-2 |
| WTT Feeder Varazdin Quals | 2024/04/03 10:30 | Kijeong Cho v Carlo Rossi | L | 3-1 |
| WTT Feeder Otocec | 2024/03/30 14:00 | Carlo Rossi v Fanbo Meng | L | 0-3 |
| WTT Feeder Otocec | 2024/03/29 17:00 | Kristian Karlsson v Carlo Rossi | W | 1-3 |
| Challenger Series TT | 2024/03/08 14:10 | Mohammad Mousavi v Carlo Rossi | W | 0-3 |
| Challenger Series TT | 2024/03/08 13:05 | Kirill Fadeev v Carlo Rossi | L | 3-2 |