| ITF Czech Republic F5 Qual | 2015/06/28 09:00 | Jan Zielinski v Pawel Zawisza | 5-7,7-6,4-6 |
| ITF Georgia F2 | 2015/06/09 06:00 | Jan Zielinski v Igor Saveljic | 2-6,6-3,2-6 |
| ITF Turkey F12 | 2015/03/21 09:00 | Matteo Berrettini v Jan Zielinski | 6-3,6-2 |
| ITF Turkey F11 | 2015/03/18 07:30 | Zhizhen Zhang v Jan Zielinski | 6-4,6-2 |
| ITF Turkey F11 | 2015/03/16 08:00 | Jan Zielinski v Peter Vajda | 7-5,4-6,6-2 |
| ITF Turkey F11 | 2015/03/16 07:30 | Jan Zielinski v James Allemby | 6-1,6-2 |
| ITF Egypt F33 | 2015/02/08 08:00 | Dan Dowson v Jan Zielinski | 7-6,6-2 |
| ITF Egypt F4 | 2015/02/05 08:00 | Jan Zielinski v Karim-Mohamed Maamoun | 3-6,0-6 |
| ITF Czech Republic F6 Qual | 2015/07/04 08:00 | Nazar Khrustalev v Jan Poskocil | 2-6,2-6 |
| ITF Austria F5 Qual | 2014/07/21 07:30 | Jan Poskocil v Nebojsa Peric | 6-1,6-2 |
| ITF Austria F5 Qual | 2014/07/20 07:30 | Jan Poskocil v Joy Vigani | 6-1,1-6,6-2 |
| ITF Austria F5 Qual | 2014/07/19 08:00 | Jan Poskocil v Alessandro Ceppellini | 6-1,6-1 |
| ITF Hungary F2 | 2014/06/11 13:30 | Catalin-Ionut Gard v Jan Poskocil | 4-6,7-6,6-2 |