| Challenger Ochsenhausen | 2019/12/06 10:10 | Nikola Marinkovic v Alexander Valuch | L | 0-3 |
| Challenger Ochsenhausen | 2019/12/06 07:30 | Nikola Marinkovic v Michal Benes | L | 0-3 |
| Challenger Ochsenhausen | 2019/12/05 10:50 | Nikola Marinkovic v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2019/12/05 08:10 | Jon Ander Guerricabeitia v Nikola Marinkovic | L | 3-1 |
| Challenger Ochsenhausen | 2019/12/04 12:50 | Sven Happek v Nikola Marinkovic | W | 1-3 |
| Challenger Ochsenhausen | 2019/12/04 10:50 | Nikola Marinkovic v Abhishek Yadav | L | 0-3 |
| Challenger Ochsenhausen | 2019/12/04 08:50 | Nikola Marinkovic v Tomasz Tomaszuk | W | 3-1 |
| Croatia Open | 2019/05/14 14:20 | Alexander Valuch v Nikola Marinkovic | L | 3-0 |
| Challenger Ochsenhausen | 2019/11/19 12:40 | Antonin Gavlas v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2019/11/19 08:40 | Jiri Martinko v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2019/11/18 20:20 | Valerij Rakov v Emil Santos | L | 0-3 |
| Challenger Ochsenhausen | 2019/11/18 17:00 | Valerij Rakov v Tomas Konecny | L | 0-3 |
| Challenger Ochsenhausen | 2019/11/18 15:00 | Liang Qiu v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2019/11/18 11:30 | Gaston Alto v Valerij Rakov | L | 3-2 |
| Challenger Ochsenhausen | 2019/11/18 08:50 | Robert Floras v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2019/10/22 11:40 | Juan Gallego v Valerij Rakov | W | 0-3 |