| ITF M25 Hamburg | 2021/10/17 07:55 | Romain Faucon v Jip Van Assendelft | 1-6,6-1,11-9 |
| ITF M25 Sintra | 2021/09/15 15:20 | Jip Van Assendelft v Rio Noguchi | 6-4,0-6,1-6 |
| ITF M25 Sintra | 2021/09/14 09:55 | Jip Van Assendelft v Mirko Lagasio | 7-6,6-0 |
| ITF M25 Sintra | 2021/09/13 16:30 | Henrik Heise Korsgaard v Jip Van Assendelft | 6-3,4-6,5-10 |
| ITF M25 Eupen | 2021/09/07 07:30 | Juan Ignacio Galarza v Jip Van Assendelft | 4-6,6-2,10-3 |
| ITF M25 Eupen | 2021/09/06 09:15 | Jip Van Assendelft v Jing L Weng | 6-4,6-1 |
| ITF M25 Eupen | 2021/09/05 12:00 | Jip Van Assendelft v Joris Hoogland | 6-2,6-1 |
| ITF M25 Alkmaar | 2021/06/20 12:00 | Jip Van Assendelft v Benjamin Dhoe | 2-6,3-6 |
| ITF M15 Marburg | 2019/07/08 09:00 | Valentin Guenther v Jannis Kahlke | 6-4,6-2 |
| ITF M15 Marburg | 2019/07/08 07:00 | Jan Soeren Hain v Jannis Kahlke | 6-7,4-6 |
| ITF M15 Kaarst | 2019/02/04 08:30 | Daniel De Jonge v Jannis Kahlke | 7-5,6-4 |
| ITF M15 Sharm El Sheikh | 2019/01/21 09:30 | Kacper Zuk v Jannis Kahlke | 7-5,6-0 |
| ITF Egypt F28 | 2018/11/22 09:15 | Jannis Kahlke v Mohamed Aziz Dougaz | 2-6,6-7 |
| ITF Egypt F28 | 2018/11/21 13:10 | Jannis Kahlke v Jan Vehovec | 6-0,6-0 |
| ITF Egypt F28 | 2018/11/19 08:00 | Tom Pisane v Jannis Kahlke | 3-6,4-6 |
| ITF Egypt F28 | 2018/11/18 08:00 | Jannis Kahlke v Dzianis Zharyn | 7-6,6-3 |