| Challenger Ochsenhausen | 2018/07/09 14:00 | Jan Gorecki v Frane Runjic | L | 3-2 |
| Challenger Ochsenhausen | 2018/07/09 10:30 | Yannick Vostes v Frane Runjic | L | 3-1 |
| Challenger Ochsenhausen | 2018/07/09 07:50 | Ronald Redjep v Frane Runjic | L | 3-0 |
| Qatar Open XD | 2018/04/11 10:50 | Maksim Kiselev v Frane Runjic | L | 4-3 |
| Qatar Open XD | 2018/04/10 16:55 | Rares Sipos v Frane Runjic | L | 4-0 |
| Qatar Open XD | 2018/04/10 10:50 | Jiaji Wu v Frane Runjic | L | 4-1 |
| Challenger Ochsenhausen | 2018/07/09 12:30 | Petr Husnik v Petr David | W | 0-3 |
| Challenger Ochsenhausen | 2018/07/09 11:10 | Jan Gorecki v Petr David | W | 1-3 |
| Challenger Ochsenhausen | 2018/07/09 06:30 | Miroslav Horejsi v Petr David | W | 0-3 |
| Challenger Ochsenhausen | 2018/06/29 11:25 | Yannick Vostes v Petr David | L | 3-1 |
| Challenger Ochsenhausen | 2018/06/29 09:50 | Petr David v Robert Floras | W | 3-2 |
| Challenger Ochsenhausen | 2018/06/29 07:10 | Petr David v Florian Bluhm | L | 2-3 |
| Challenger Ochsenhausen | 2018/06/28 10:30 | Petr David v Evgueni Chtchetinine | L | 2-3 |
| Challenger Ochsenhausen | 2018/06/28 07:10 | Petr David v Josip Huzjak | L | 2-3 |