| International du Portugal Qualif. | 2023/03/09 15:30 | van Gysel, Leo v Kim Kristensen, D. | W | 2-1 |
| Lithuanian Int. | 2023/06/10 08:40 | Jason Christ Alexander v van Gysel, Leo | L | 2-0 |
| Open de Pologne - Qualif. | 2023/03/23 13:05 | van Gysel, Leo v Dominik Kwinta | L | 0-2 |
| Open de Pologne - Qualif. | 2023/03/22 17:55 | Mikolaj Szymanowski v van Gysel, Leo | W | 0-2 |
| International du Portugal | 2023/03/10 13:15 | Viktor Ording Kauffman v van Gysel, Leo | L | 2-0 |
| International du Portugal Qualif. | 2023/03/09 15:30 | van Gysel, Leo v Kim Kristensen, D. | W | 2-1 |
| International du Portugal Qualif. | 2023/03/09 13:40 | van Gysel, Leo v Schueler, Jacob | W | 2-0 |
| International du Portugal Qualif. | 2023/03/08 18:20 | van Gysel, Leo v Saneeth Dayanand Shimoga | W | 2-1 |
| International du Portugal Qualif. | 2023/03/08 11:00 | Lois Le Corre v van Gysel, Leo | W | 0-2 |
| Denmark Masters Qual | 2023/06/08 13:50 | Wolfgang Gnedt v Kim Kristensen, D. | L | 2-1 |
| Denmark Masters Qual | 2023/06/08 10:20 | Kim Kristensen, D. v Abhishek Yeligar | W | 2-0 |
| Bonn Int. | 2023/06/01 13:10 | Yu-Han Hsu v Kim Kristensen, D. | L | 2-0 |
| Bonn Int. Qual | 2023/05/31 09:10 | Kai Niederhuber v Kim Kristensen, D. | W | 0-2 |
| Open de Slovénie - Qualif. | 2023/05/18 09:30 | Yu Huang v Kim Kristensen, D. | L | 2-1 |
| Open de Slovénie - Qualif. | 2023/05/17 15:45 | Bene Benjamin Kiss v Kim Kristensen, D. | W | 0-2 |
| Open de Slovénie - Qualif. | 2023/05/17 07:40 | Kim Kristensen, D. v Krapez, Andraz | W | 2-1 |
| Luxembourg Open | 2023/05/05 11:00 | Wolfgang Gnedt v Kim Kristensen, D. | L | 2-0 |