Stadium: Sparkassen Court Round: 54 Ground: Clay
| ITF USA F29 | 2018/10/28 16:00 | Jan Soeren Hain v Preston Touliatos | 4-6,0-6 |
| ITF USA F29 | 2018/10/27 16:30 | Jai Corbett v Jan Soeren Hain | 4-6,1-6 |
| ITF USA F29 | 2018/10/26 20:30 | Trey Hilderbrand v Jan Soeren Hain | 6-7,6-4,2-6 |
| ITF USA F25 | 2018/09/15 17:30 | Harry Bourchier v Jan Soeren Hain | 6-1,6-3 |
| ITF Germany F9 | 2018/07/24 10:00 | Jan Soeren Hain v Alejo Vilaro | 5-7,4-6 |
| ITF Germany F2 Qual | 2018/01/21 08:30 | Jan Soeren Hain v Moritz Hoffmann | 3-6,6-3,6-4 |
| ITF Germany F10 | 2017/08/08 12:15 | Jan Soeren Hain v Christian Hirschmueller | 3-6,1-6 |
| ITF Germany F10 | 2017/08/07 14:30 | Moritz Dettinger v Jan Soeren Hain | 6-4,4-6,2-6 |
| 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 |
| ITF Egypt F27 | 2018/11/16 08:00 | Jannis Kahlke v Johan Nikles | 6-1,3-6,3-6 |
| ITF Egypt F27 | 2018/11/15 09:50 | Luca Prevosto v Jannis Kahlke | 2-6,3-6 |