Round: 44 Ground: Clay
| ITF Poland F4 Qual | 2016/06/12 08:00 | Jan Zielinski v Krzysztof Mlazga | 6-4,6-0 |
| ITF Poland F3 | 2016/06/09 09:00 | Andriej Kapas v Jan Zielinski | 6-4,6-4 |
| ITF Poland F3 | 2016/06/07 09:20 | Michal Dembek v Jan Zielinski | 2-6,6-4,2-6 |
| ITF Egypt F33 | 2015/11/28 12:30 | Jan Zielinski v Denys Molchanov | 5-7,6-7 |
| ITF Egypt F33 | 2015/11/27 12:30 | George Tsivadze v Jan Zielinski | 3-6,4-6 |
| ITF Egypt F33 | 2015/11/26 13:30 | Simeon Rossier v Jan Zielinski | 4-6,4-6 |
| ITF Egypt F33 | 2015/11/24 12:30 | Jan Zielinski v Volodymyr Uzhylovskyi | 6-4,6-1 |
| ITF Egypt F33 | 2015/11/18 12:30 | Aldin Setkic v Jan Zielinski | 6-2,6-1 |
| ITF Poland F4 Qual | 2016/06/12 08:00 | Karol Krawczynski v Eero Vasa | 7-6,6-4 |
| ITF Poland F4 Qual | 2016/06/11 08:00 | Yann Wojcik v Karol Krawczynski | 3-6,6-2,6-7 |
| ITF Poland F3 Qual | 2016/06/05 08:00 | Piotr Grynkowski v Karol Krawczynski | 6-4,6-3 |
| ITF Poland F3 Qual | 2016/06/04 08:00 | Karol Krawczynski v Artsiom Dabryian | 3-6,6-4,6-2 |
| ITF Poland F2 | 2016/05/30 12:35 | Karol Krawczynski v Adrian Andrzejczuk | 3-6,7-5,3-6 |
| ITF Czech Republic F3 Qual | 2016/05/23 08:30 | David Simunek v Karol Krawczynski | 6-4,6-3 |
| ITF Czech Republic F3 Qual | 2016/05/21 11:30 | Karol Krawczynski v Michael Avetisyan | 6-3,6-1 |
| ITF Poland F4 Qual | 2015/08/31 08:00 | Maciej Rajski v Karol Krawczynski | 6-2,6-2 |