Stadium: I Round: 27 Ground: Clay
| Challenger Como | 2018/08/27 15:30 | Martin Klizan v Alessandro Giannessi | 6-2,6-4 |
| Challenger Pullach | 2018/08/11 14:05 | Jan-Lennard Struff v Martin Klizan | 6-4,6-4 |
| Challenger Pullach | 2018/08/10 13:15 | Mikael Ymer v Martin Klizan | 3-6,2-6 |
| Challenger Pullach | 2018/08/08 16:50 | Kamil Majchrzak v Martin Klizan | 3-6,3-6 |
| Challenger Pullach | 2018/08/07 13:45 | Ricardo Ojeda Lara v Martin Klizan | 3-6,2-6 |
| ATP Kitzbühel | 2018/08/04 12:00 | Martin Klizan v Denis Istomin | 6-2,6-2 |
| ATP Kitzbühel | 2018/08/03 13:50 | Martin Klizan v Jaume Munar | 7-6,6-3 |
| ATP Kitzbühel | 2018/08/02 15:00 | Martin Klizan v Dusan Lajovic | 4-6,7-6,6-2 |
| Challenger Como | 2018/08/29 11:45 | Viktor Galovic v Lorenzo Giustino | 4-6,7-5,7-5 |
| Challenger Como | 2018/08/27 13:30 | Alessandro Coppini v Viktor Galovic | 2-6,2-6 |
| US Open | 2018/08/21 21:45 | Santiago Giraldo v Viktor Galovic | 6-4,6-4 |
| Challenger Portoroz | 2018/08/07 08:00 | Markus Eriksson v Viktor Galovic | 6-4,6-7,6-4 |
| ATP Kitzbuhel Qual | 2018/07/28 13:30 | Viktor Galovic v Yannick Maden | 4-6,4-6 |
| ATP Gstaad | 2018/07/27 12:30 | Viktor Galovic v Laslo Djere | 7-6,3-6,6-7 |
| ATP Gstaad | 2018/07/26 08:30 | Viktor Galovic v Felix Auger Aliassime | 3-6,6-4,6-2 |
| ATP Gstaad | 2018/07/24 10:40 | Robin Haase v Viktor Galovic | 1-6,6-3,3-6 |