Stadium: Court 3 Oberhaching Round: 44 Ground: Carpet indoor
| Challenger Sibiu Qual | 2018/09/16 12:00 | 프룬자, 니콜라에 v Sieber, Marc | 6-4,6-3 |
| Challenger Seville | 2018/09/01 16:00 | Sieber, Marc v 자파타 미랄레스, 베르나베 | 6-7,3-6 |
| Challenger Mallorca | 2018/08/26 11:30 | 제발로스, 페데리코 v Sieber, Marc | 3-6,6-1,6-3 |
| Challenger Meerbusch | 2018/08/14 12:30 | Sieber, Marc v 태틀로트, 조한 세바스티엔 | 6-7,6-4,4-6 |
| Meerbusch, Germany, Qualifying | 2018/08/13 09:00 | 라마신, 트리스탄 v Sieber, Marc | 6-7,5-7 |
| Meerbusch, Germany, Qualifying | 2018/08/12 09:40 | Sieber, Marc v 오에츠바치, 아드리안 | 6-0,6-0 |
| Meerbusch, Germany, Qualifying | 2018/08/11 11:45 | 로센크란즈, 매츠 v Sieber, Marc | 3-6,3-6 |
| Challenger Pullach Qual | 2018/08/04 09:00 | Sieber, Marc v 렌즈, 줄리안 | 4-6,6-4,4-6 |
| ITF Germany F14 | 2018/09/30 07:00 | Nystroem, Patrick v Vasic, Nikola | 6-0,6-2 |
| ITF Italy F26 | 2018/09/04 09:30 | Simonsson, Fred v Nystroem, Patrick | 6-1,6-1 |
| ITF Italy F26 | 2018/09/02 11:00 | Nystroem, Patrick v 마르체티, 페데리코 | 6-2,2-6,7-5 |
| ITF Italy F26 | 2018/09/01 08:30 | 아이초른, 야코브 v Nystroem, Patrick | 2-6,4-6 |
| ITF Austria F6 | 2017/08/06 08:00 | 마르틴, 토비 v Nystroem, Patrick | 6-2,6-4 |
| ITF Austria F6 | 2017/08/05 10:00 | Nystroem, Patrick v Moncagatto, Francesco | 1-6,6-3,6-4 |
| ITF Austria F6 | 2017/08/05 07:00 | Nystroem, Patrick v 아에스, 루드비그 | 6-3,6-1 |
| ITF Austria F3 | 2017/07/15 07:00 | Nystroem, Patrick v 베르톨라, 레미 | 6-3,6-7,2-6 |