| ITF - M25 Santa Margherita | 05/01 11:00 | 25 | [354] Sebastian Fanselow v Kai Wehnelt [204] | 4-6,7-6,6-3 | |
| Challenger - Rome | 04/23 08:00 | 14 | Sebastian Fanselow v Denis Istomin | 4-6,6-4,3-6 | |
| Challenger - Oeiras | 04/16 10:10 | 14 | [311] Jaime Faria v Sebastian Fanselow [344] | 6-4,7-5 | |
| Challenger - St Brieuc | 03/23 19:45 | 26 | [216] Evan Furness v Sebastian Fanselow [365] | 2-6,6-1,6-4 | |
| Challenger - St Brieuc | 03/21 19:00 | 25 | [365] Sebastian Fanselow v Antoine Hoang [354] | 6-4,6-3 | |
| ITF M25 - Portimao | 03/16 16:00 | 26 | [397] Georgii Kravchenko v Sebastian Fanselow [371] | 6-3,4-6,6-4 | |
| ITF M25 - Portimao | 03/14 12:25 | 25 | Tiago Pereira v Sebastian Fanselow | 6-2,3-6,1-6 | |
| Challenger Waco | 02/26 16:00 | 14 | [369] Sebastian Fanselow v Henri Squire [315] | 2-6,2-6 | |
| Challenger - Rome GA | 02/21 19:45 | 25 | [369] Sebastian Fanselow v Sho Shimabukuro [251] | 6-2,3-6,3-6 | |
| Challenger - Rome GA | 02/20 19:00 | 19 | Sebastian Fanselow v Pedro Rodenas | 6-3,6-2 | |
| Challenger - Rome GA | 02/19 21:25 | 14 | Sebastian Fanselow v Ronald Hohmann | 6-4,4-6,6-2 | |
| ITF - M25 Vila Real de Santo Antonio | 02/10 14:10 | 27 | Matej Vocel v Sebastian Fanselow | 7-5,6-1 | |
| ITF - M25 Vila Real de Santo Antonio | 02/10 09:30 | 26 | Imanol L Morillo v Sebastian Fanselow | 6-7,2-6 | |
| ITF - M25 Vila Real de Santo Antonio | 02/09 10:00 | 25 | Sergio R Pereira v Sebastian Fanselow | 1-6,4-6 | |
| ITF M25 - Manacor | 01/28 13:00 | 28 | [375] Sebastian Fanselow v Abedallah Shelbayh [475] | 4-6,7-6,5-7 | |
| ITF M25 - Manacor | 01/27 13:00 | 27 | [384] Alvaro Lopez San Martin v Sebastian Fanselow [375] | 3-6,4-6 | |
| ITF M25 - Manacor | 01/26 11:00 | 26 | [477] Felix Gill v Sebastian Fanselow [375] | 7-5,2-6,3-6 | |
| ITF M25 - Manacor | 01/25 18:35 | 25 | Javier Molino v Sebastian Fanselow | 4-6,0-6 | |
| ITF M25 - Manacor | 01/19 12:30 | 26 | [427] Daniel Rincon v Sebastian Fanselow [375] | 6-4,6-4 | |
| ITF M25 - Manacor | 01/18 18:50 | 25 | Christian Sigsgaard v Sebastian Fanselow | 3-6,5-7 | |
| Challenger - Oeiras | 01/11 16:15 | 26 | [450] Dino Prizmic v Sebastian Fanselow [393] | 2-6,6-2,6-2 | |
| Challenger - Oeiras | 01/10 17:05 | 25 | [393] Sebastian Fanselow v Harold Mayot [256] | 6-2,3-6,6-4 | |
| Challenger - Oeiras | 01/09 12:35 | 19 | [393] Sebastian Fanselow v Vitaliy Sachko [336] | 2-6,6-3,7-5 | |
| Challenger - Oeiras - Kwal. | 01/08 16:05 | 14 | [330] Max Houkes v Sebastian Fanselow [399] | 2-6,2-6 | |
| Challenger - Oeiras | 01/02 12:50 | 19 | [336] Alibek Kachmazov v Sebastian Fanselow [399] | 6-3,6-2 | |
| Challenger - Oeiras | 01/01 18:25 | 14 | [390] Fabio Coelho v Sebastian Fanselow [399] | 3-6,5-7 | |
| Challenger - Champaign | 11/16 17:25 | 26 | [381] Prajnesh Gunneswaran v Sebastian Fanselow [334] | 3-6,6-2,7-5 | |
| Challenger - Champaign | 11/14 23:20 | 25 | [334] Sebastian Fanselow v Ezekiel Clark [483] | 6-1,6-1 | |
| Challenger - Knoxville | 11/08 18:25 | 25 | [330] Sebastian Fanselow v Inaki M-De La Torre [425] | 6-3,1-6,4-6 | |
| Challenger - Charlottesville | 11/02 01:00 | 25 | [105] Denis Kudla v Sebastian Fanselow [303] | 6-4,6-3 |