| DTB German Pro Series | 2020/06/26 09:30 | Tom Schonenberg v Stefan Seifert | 6-4,6-2 |
| DTB German Pro Series | 2020/06/25 08:00 | Kai Wehnelt v Stefan Seifert | 6-4,6-2 |
| DTB German Pro Series | 2020/06/23 08:00 | Marvin Moeller v Stefan Seifert | 4-6,6-3,7-5 |
| ITF M15 Oberhaching | 2020/02/20 11:00 | Jakub Paul v Stefan Seifert | 6-4,6-7,6-4 |
| ITF M15 Heraklion | 2020/02/13 08:30 | Antonio Massara v Stefan Seifert | 6-3,7-5 |
| ITF M15 Heraklion | 2020/02/11 09:30 | Ioannis Stamoulos v Stefan Seifert | 0-6,6-2,3-6 |
| ITF M15 Veigy-Foncenex | 2020/01/30 11:45 | Quentin Robert v Stefan Seifert | 7-6,4-6,6-3 |
| ITF M15 Veigy-Foncenex | 2020/01/29 14:40 | Stefan Seifert v Jurgen Briand | 7-6,6-1 |
| ITF Germany F16 | 2018/10/21 08:00 | Roy Sarut De Valk v David Eisenzapf | 6-4,3-6,6-3 |
| ITF Germany F4 | 2016/06/20 15:30 | David Eisenzapf v Delf Gohlke | 4-6,5-7 |
| ITF Germany F4 | 2016/06/18 12:30 | David Eisenzapf v Jannik Opitz | 6-2,6-1 |
| ITF Germany F16 | 2015/10/11 07:00 | Bastien Presuhn v David Eisenzapf | 6-4,6-4 |
| ITF Germany F10 Qual | 2015/08/02 08:00 | Flemming Peters v David Eisenzapf | 6-3,6-3 |
| ITF Netherlands F4 | 2015/07/04 08:00 | Marc Dijkhuizen v David Eisenzapf | 3-6,6-3,6-1 |
| ITF Belgium F14 | 2014/08/30 13:30 | Elmar Ejupovic v David Eisenzapf | 6-3,6-1 |
| ITF Germany F9 | 2014/07/23 13:05 | David Eisenzapf v David Simunek | 1-6,4-6 |