Results
| ITF M25 Plaisir | 09/11 13:22 | - | Stefan Seifert v Simon Reveniau | 6-7,6-7 | |
| ITF M25 Plaisir | 09/10 09:00 | - | Alastair Gray v Stefan Seifert | 4-4 | |
| ITF M25 Plaisir | 09/08 11:30 | - | Stefan Seifert v Yoshka Sborowsky | 6-3,7-5 | |
| ITF M25 Plaisir | 09/07 13:40 | - | Louis Larue v Stefan Seifert | 3-6,2-6 | |
| ITF M25 Plaisir | 09/07 07:30 | - |
Bergen Elite Women
v
Stefan Seifert |
4-6,2-6 | |
| ITF M15 Budapest | 08/27 12:25 | - | Stefan Seifert v Seydina Andre | 3-6,6-6 | |
| German Championship | 12/10 12:00 | - | Stefan Seifert v Luca Gelhardt | 4-6,5-7 | |
| German Championship | 12/09 10:00 | - | Christoph Negritu v Stefan Seifert | 6-2,4-6,5-6 | |
| German Championship | 12/08 09:00 | - | Stefan Seifert v Osman Torski | 6-1,6-3 | |
| German Championship | 12/10 10:30 | - | Stefan Seifert v Jordi Walder | 4-6,6-1,3-6 | |
| German Championship | 12/07 15:30 | - | Stefan Seifert v David Eisenzapf | 6-1,6-4 | |
| DTB German Pro Series | 06/27 08:00 | 1 | Kai Wehnelt v Stefan Seifert | Retired |
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