| ITF M25 - Sintra | 09/06 11:45 | 25 | Sebastian Fanselow v Tomas C Abasolo | Retired | |
| ITF - M15 Frankfurt Am Main | 08/10 10:35 | 26 | Jakob Schnaitter v Sebastian Fanselow | Walkover | |
| ITF - M15 Frankfurt Am Main | 08/08 13:00 | 25 | Rostislav Galfinger v Sebastian Fanselow | 1-6,7-6,2-6 | |
| ITF M25 - Wetzlar | 08/06 10:00 | 29 | [489] Sebastian Fanselow v Tristan Lamasine [438] | 3-6,1-6 | |
| ITF M25 - Wetzlar | 08/05 12:30 | 28 | [483] Orlando Luz v Sebastian Fanselow [489] | 6-7,2-6 | |
| ITF M25 - Wetzlar | 08/04 11:10 | 27 | Sebastian Fanselow v Milan Welte | 7-5,4-6,6-3 | |
| ITF M25 - Wetzlar | 08/04 08:00 | 26 | [489] Sebastian Fanselow v Niklas Schell [240] | 6-4,6-3 | |
| ITF M25 - Wetzlar | 08/03 09:35 | 25 | Sebastian Fanselow v Yan Sabanin | 6-3,6-4 | |
| Challenger - Karlsruhe | 07/03 10:35 | 19 | [324] Denis Yevseyev v Sebastian Fanselow [413] | 7-5,7-6 | |
| Challenger - Karlsruhe | 07/02 14:15 | 14 | [460] Andrew Paulson v Sebastian Fanselow [408] | 2-6,5-7 | |
| ITF M25 - Arlon | 06/29 12:00 | 26 | [446] Sandro Kopp v Sebastian Fanselow [408] | 6-4,4-6,7-6 | |
| ITF M25 - Arlon | 06/28 07:50 | 25 | Boris Fassbender v Sebastian Fanselow | 2-6,3-6 | |
| Challenger - Parma | 06/18 12:00 | 14 | Andrea Arnaboldi v Sebastian Fanselow | 6-2,6-4 | |
| Challenger - Heilbronn | 06/06 12:10 | 25 | [448] Sebastian Fanselow v Rudolf Molleker [338] | 4-6,7-6,1-6 | |
| Challenger - Heilbronn | 06/05 10:30 | 19 | [448] Sebastian Fanselow v Vladyslav Orlov [370] | 6-3,3-6,6-3 | |
| Challenger - Heilbronn | 06/04 15:25 | 14 | [327] Daniel Dutra Da Silva v Sebastian Fanselow [448] | 4-6,6-7 | |
| ITF - M25 Jablonec nad Nisou | 06/03 09:00 | 28 | Sebastian Fanselow v Tim Handel | 4-6,2-6 | |
| ITF - M25 Jablonec nad Nisou | 06/02 09:00 | 27 | [429] Khumoyun Sultanov v Sebastian Fanselow [448] | 5-7,5-7 | |
| ITF - M25 Jablonec nad Nisou | 06/01 07:55 | 26 | [448] Sebastian Fanselow v Michael Vrbensky [344] | 6-3,4-6,6-3 | |
| ITF - M25 Jablonec nad Nisou | 05/31 11:30 | 25 | Sebastian Fanselow v Dominik Recek | 6-0,6-3 | |
| ITF M15 - Warmbad-Villach | 05/25 07:25 | 26 | Sebastian Fanselow v Philip Florig | 6-2,3-6,6-7 | |
| ITF M15 - Warmbad-Villach | 05/23 08:50 | 25 | Sebastian Fanselow v Marko Andrejic | 6-0,6-2 | |
| Challenger - Oeiras | 05/15 11:15 | 19 | [341] Eduardo Riberio v Sebastian Fanselow [356] | 6-2,6-4 | |
| Challenger - Oeiras | 05/14 15:00 | 14 | [356] Sebastian Fanselow v Alejandro Moro Canas [309] | 7-5,6-4 | |
| Challenger - Francavilla | 05/08 12:35 | 19 | [302] Moez Echargui v Sebastian Fanselow [356] | 5-7,6-3,6-0 | |
| Challenger - Francavilla | 05/07 13:15 | 14 | Lorenzo Carboni v Sebastian Fanselow | 5-7,6-4,4-6 | |
| ITF - M25 Santa Margherita | 05/06 07:55 | 29 | [354] Sebastian Fanselow v Daniel Michalski [272] | 1-6,2-6 | |
| ITF - M25 Santa Margherita | 05/05 08:00 | 28 | Tommaso Compagnucci v Sebastian Fanselow | 2-6,3-6 | |
| ITF - M25 Santa Margherita | 05/04 09:30 | 27 | [354] Sebastian Fanselow v Giovanni Oradini [444] | 6-7,6-3,7-5 | |
| ITF - M25 Santa Margherita | 05/03 15:55 | 26 | [354] Sebastian Fanselow v Piotr Matuszewski [171] | 7-5,1-6,6-4 |