Round: 26 Ground: Clay
| ITF Czech Republic F2 | 2017/05/23 09:00 | Michael Vrbensky v Robin Lang | 6-2,6-7,4-6 |
| ITF Czech Republic F2 | 2017/05/22 09:00 | Robin Lang v Jesper T Freimuth | 6-1,6-1 |
| ITF Czech Republic F2 | 2017/05/21 08:00 | Nazim Makhlouf v Robin Lang | 4-6,1-6 |
| ITF Tunisia F7 | 2017/02/18 08:00 | Filippo Leonardi v Robin Lang | 6-3,6-2 |
| ITF Tunisia F6 | 2017/02/11 08:00 | Paul Woerner v Robin Lang | 6-2,5-7,6-3 |
| ITF Switzerland F1 Qual | 2017/02/04 11:00 | Robin Lang v Theo Fournerie | 5-7,4-6 |
| ITF Germany F3 | 2017/01/23 08:30 | Johannes Haerteis v Robin Lang | 7-5,6-3 |
| ITF Germany F3 | 2017/01/22 08:30 | Robin Lang v Yanik Kaelin | 7-6,6-1 |
| ITF Czech Republic F2 | 2017/05/24 11:30 | Patrick Mayer v Alexandar Lazarov | 2-6,2-6 |
| ITF Czech Republic F1 | 2017/05/18 08:30 | Alexandar Lazarov v Julian Lenz | 7-6,6-7,3-6 |
| ITF Czech Republic F1 | 2017/05/16 08:30 | Elmar Ejupovic v Alexandar Lazarov | 1-6,5-7 |
| ITF Hungary F1 | 2017/05/10 08:00 | Attila Balazs v Alexandar Lazarov | 6-2,7-5 |
| ITF Croatia F3 | 2017/03/22 10:05 | Alexandar Lazarov v Naoki Nakagawa | 2-6,0-6 |
| ITF Croatia F2 | 2017/03/15 10:35 | Pere Riba v Alexandar Lazarov | 6-2,6-3 |
| ITF Croatia F1 | 2017/03/08 10:00 | Alexandar Lazarov v Calin Manda | 6-4,3-6,3-6 |
| ATP Sofia | 2017/02/06 16:00 | Alexandar Lazarov v Radu Albot | 6-7,2-6 |