Round: 25 Ground: Clay
| ITF Germany F4 | 2017/06/22 12:00 | Bernabe Zapata Miralles v Valentin Guenther | 6-4,6-1 |
| ITF Germany F4 | 2017/06/21 10:45 | Valentin Guenther v Niclas Braun | 6-0,6-0 |
| ITF Germany F4 | 2017/06/19 11:00 | Alexander Mannapov v Valentin Guenther | 4-6,1-6 |
| ITF Germany F4 | 2017/06/18 14:00 | Yannick Staschen v Valentin Guenther | 2-6,4-6 |
| ITF Germany F4 | 2017/06/17 10:30 | Joel Vincent Link v Valentin Guenther | 1-6,4-6 |
| ITF Turkey F19 Qual | 2017/05/15 07:00 | Valentin Guenther v Juan Bautista Otegui | 3-6,3-6 |
| ITF Turkey F19 Qual | 2017/05/14 07:00 | Lance-Pierre Du Toit v Valentin Guenther | 5-7,0-6 |
| ITF Turkey F19 Qual | 2017/05/13 07:00 | Valentin Guenther v Burak Bilgin | 6-2,6-2 |
| ITF Poland F1 | 2017/06/16 14:55 | Kamil Majchrzak v Peter Heller | 6-3,7-6 |
| ITF Poland F1 | 2017/06/14 09:00 | Robin Stanek v Peter Heller | 3-6,4-6 |
| ITF Poland F1 | 2017/06/12 12:00 | Peter Heller v Jonas Luetjen | 2-6,7-5,6-3 |
| ITF Italy F16 | 2017/06/08 13:00 | Peter Heller v Andrea Collarini | 2-6,4-6 |
| ITF Italy F16 | 2017/06/07 08:30 | Facundo Mena v Peter Heller | 6-7,2-6 |
| ITF Italy F16 | 2017/06/06 07:30 | Peter Heller v Patrick Mayer | 6-4,6-3 |
| ITF Italy F16 Qual | 2017/06/05 10:05 | Peter Heller v Adrian Obert | 6-2,7-5 |
| ITF Italy F16 Qual | 2017/06/04 16:10 | Riccardo Balzerani v Peter Heller | 3-6,3-6 |