Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF Poland F4 | 2018/05/24 08:00 | Hajek, Petr v David Pichler | 4-6,5-7 |
| ITF - M15 Héraklion | 2020/02/19 12:55 | David Pichler v Kalovelonis, Markos | 3-6,6-4,3-6 |
| ITF - M15 Héraklion | 2020/02/12 07:55 | David Pichler v Giacalone, Omar | 6-3,0-6,4-6 |
| ITF - M15 Héraklion | 2019/12/15 10:00 | Kobelt, Peter v David Pichler | 3-6,3-6 |
| ITF - M15 Héraklion | 2019/12/12 09:00 | David Pichler v Recci, Mason | 6-2,6-3 |
| ITF - M15 Héraklion | 2019/12/10 13:00 | David Pichler v Illya Beloborodko | 6-2,3-6,6-2 |
| ITF - M15 Héraklion | 2019/12/06 08:00 | David Pichler v Yshai Oliel | 2-6,4-6 |
| ITF - M15 Héraklion | 2019/12/05 09:50 | David Pichler v Alexander Donski | 6-4,0-6,6-4 |
| ITF - M15 Héraklion | 2019/12/04 12:10 | David Pichler v Crawford, Clay | 6-3,6-3 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/25 09:00 | Hajek, Petr v Shumeiko, Pavel | 3-6,6-3,6-10 |
| ITF - M15 Oberhaching | 2020/02/16 16:45 | Naow, Amer v Hajek, Petr | 6-1,6-3 |
| ITF - M15 Oberhaching | 2020/02/16 10:30 | Patric Prinoth v Hajek, Petr | 6-7,4-6 |
| ITF M15 Cairo | 2020/01/22 10:45 | Alexander Shevchenko v Hajek, Petr | 6-2,6-2 |
| ITF M15 Cairo | 2020/01/17 08:00 | Hajek, Petr v Nikolas Sanchez Izquierdo | 1-6,3-6 |
| ITF M15 Cairo | 2020/01/16 10:25 | Kekez, Duje v Hajek, Petr | 5-7,6-2,3-6 |
| ITF M15 Cairo | 2020/01/15 09:00 | Hanyi Liu v Hajek, Petr | 4-6,1-6 |
| Milovice, Singles M-ITF-CZE-10A | 2019/11/13 10:15 | Hajek, Petr v Jirousek, Tomas | 2-6,6-3,6-3 |