Stadium: Court 3 Round: 26 Ground: Carpet indoor
| ITF M15 - Heraklion | 2019/11/17 08:30 | Alexander Erler v Jan Zielinski | 7-5,6-1 |
| ITF M15 - Heraklion | 2019/11/16 12:00 | Yshai Oliel v Alexander Erler | 4-6,6-2,1-6 |
| ITF M15 - Heraklion | 2019/11/16 08:00 | Alexander Erler v Nikita Mashtakov | 6-1,3-6,6-3 |
| ITF M15 - Heraklion | 2019/11/15 08:00 | Alexander Erler v Billy Harris | 6-3,3-6,6-4 |
| ITF M15 - Heraklion | 2019/11/12 08:30 | Alexander Erler v Toby Martin | 6-3,3-6,6-3 |
| ITF M15 - Heraklion | 2019/11/08 08:00 | Alexander Erler v Yshai Oliel | 2-6,3-6 |
| ITF M15 - Heraklion | 2019/11/07 09:00 | Alexander Erler v Lenny Hampel | 6-3,6-4 |
| ITF M15 - Heraklion | 2019/11/05 08:30 | Alexander Erler v Michael Zhu | 6-3,2-6,6-2 |
| ITF M25 - Nussloch | 2020/01/22 11:00 | Evan Hoyt v Stefan Seifert | 5-7,3-6 |
| ITF M25 - Nussloch | 2020/01/20 17:55 | Stefan Seifert v Lasse Muscheites | 6-4,6-3 |
| ITF M25 - Nussloch | 2020/01/20 10:05 | Stefan Seifert v Niklas Albuszies | 6-0,6-2 |
| ITF M25 - Nussloch | 2020/01/19 09:00 | Stefan Seifert v Paul-Georg Guenther | 6-3,6-1 |
| ITF M15 - Sharm El Sheikh | 2019/11/21 09:15 | Stefan Seifert v Vladyslav Manafov | 2-6,4-6 |
| ITF M15 - Sharm El Sheikh | 2019/11/20 13:50 | Stefan Seifert v Filip Duda | 6-4,6-1 |
| ITF M15 - Parnu | 2019/11/02 10:00 | Stefan Seifert v Evgeny Tyurnev | 5-7,7-5,3-6 |
| ITF M15 - Parnu | 2019/11/01 11:55 | Stefan Seifert v Maxime Pauwels | 4-6,6-2,6-2 |