Round: 27 Ground: Clay
| ITF Repubblica Ceca F2 | 2017/05/25 10:30 | Dominik Kellovsky v Piotr Matuszewski | 1-6,0-6 |
| ITF Repubblica Ceca F2 | 2017/05/23 09:00 | Eduardo Dischinger v Piotr Matuszewski | 3-6,6-2,4-6 |
| ITF Repubblica Ceca F1 - Qual. | 2017/05/13 10:30 | Piotr Matuszewski v Juraj Masar | 2-6,6-3,4-6 |
| Challenger Ostrava - Qual. | 2017/04/29 14:00 | Piotr Matuszewski v Carlos Taberner | 6-7,0-6 |
| ITF Egitto F12 | 2017/04/04 08:00 | Tomas Papik v Piotr Matuszewski | 7-6,6-7,6-0 |
| ITF Egitto F12 | 2017/04/03 08:00 | Piotr Matuszewski v Szymon Walkow | 6-4,6-4 |
| ITF Egitto F12 | 2017/04/02 08:00 | Piotr Matuszewski v Mateusz Smolicki | 6-2,3-6,6-1 |
| ITF Egitto F20 | 2017/03/26 08:00 | Piotr Matuszewski v Ren Nakamura | 2-6,3-6 |
| ITF Repubblica Ceca F2 | 2017/05/25 09:00 | Grzegorz Panfil v Johannes Haerteis | 1-6,5-7 |
| ITF Repubblica Ceca F2 | 2017/05/24 09:00 | Johannes Haerteis v Niels Lootsma | 6-3,6-1 |
| ITF Repubblica Ceca F1 - Qual. | 2017/05/15 10:45 | Johannes Haerteis v Pavel Kotov | 6-4,4-6,4-6 |
| ITF Qatar F2 | 2017/04/12 13:10 | Johannes Haerteis v Antoine Escoffier | 4-6,2-6 |
| ITF Qatar F2 | 2017/04/11 18:15 | Yaraslav Shyla v Johannes Haerteis | 1-6,2-6 |
| ITF Qatar F1 | 2017/04/04 13:25 | Johannes Haerteis v Lenny Hampel | 3-6,5-7 |
| ITF Italia F2 | 2017/03/03 13:00 | Johannes Haerteis v Gregoire Jacq | 7-6,4-6,6-7 |
| ITF Italia F2 | 2017/03/01 14:10 | Viktor Galovic v Johannes Haerteis | 1-6,6-7 |