Stadium: Court 11 Round: 54
| Challenger Sopot Qual | 2018/07/30 09:55 | Dimitar Kuzmanov v Grzegorz Panfil | 5-7,6-3,7-6 |
| Challenger Tampere Qual | 2018/07/23 08:00 | Dimitar Kuzmanov v Tristan Lamasine | 6-7,6-3,4-6 |
| Challenger Tampere Qual | 2018/07/22 08:50 | Dimitar Kuzmanov v Tom Kocevar-Desman | 6-4,2-6,6-3 |
| Challenger Tampere | 2018/07/21 09:45 | Dimitar Kuzmanov v Panu Virtanen | 6-2,6-0 |
| Challenger San Benedetto Qual | 2018/07/14 13:20 | Dimitar Kuzmanov v Antonio Massara | 5-7,4-6 |
| ITF Germany F5 | 2018/07/01 10:00 | Sekou Bangoura v Dimitar Kuzmanov | 1-6,5-7 |
| ITF Germany F5 | 2018/06/30 11:00 | Fabian Marozsan v Dimitar Kuzmanov | 2-6,3-6 |
| ITF Germany F5 | 2018/06/29 11:00 | Christian Hirschmueller v Dimitar Kuzmanov | 1-6,0-6 |
| Challenger Sopot Qual | 2018/07/30 09:00 | Jan Zielinski v Cristian Rodriguez | 7-5,6-3 |
| Challenger Sopot Qual | 2018/07/28 12:05 | Yann Wojcik v Jan Zielinski | 2-6,6-2,3-6 |
| ITF Poland F3 Qual | 2017/06/25 08:00 | Dante Gennaro v Jan Zielinski | 6-3,6-1 |
| ITF Poland F2 | 2017/06/17 08:00 | Filip Bergevi v Jan Zielinski | 4-6,7-6,6-3 |
| ITF Poland F1 | 2017/06/12 13:45 | Jan Zielinski v Zdenek Kolar | 4-6,3-6 |
| ITF Estonia F1 | 2016/07/25 22:00 | Dmitry Mnushkin v Jan Zielinski | 4-6,7-6,7-5 |
| ITF Lithuania F1 | 2016/07/18 08:00 | Ivan Davydov v Jan Zielinski | 3-6,6-1,7-5 |
| Challenger Poznan Qual | 2016/07/09 13:00 | Jan Zielinski v Sergey Betov | 6-4,3-6,4-6 |