| Challenger Ochsenhausen | 2018/11/27 08:00 | Guillermo Martinez v Sushmit Sriram | W | 3-2 |
| Challenger Ochsenhausen | 2018/11/26 17:00 | Guillermo Martinez v Miroslav Horejsi | L | 0-3 |
| Challenger Ochsenhausen | 2018/11/26 15:00 | Marius Henninger v Guillermo Martinez | W | 1-3 |
| Challenger Ochsenhausen | 2018/11/26 10:10 | Guillermo Martinez v Adrian Wiecek | L | 2-3 |
| Challenger Ochsenhausen | 2018/11/26 08:50 | Guillermo Martinez v Enio Mendes | L | 1-3 |
| Czechy - Extraliga | 2018/10/23 16:15 | Takeru Kashiwa v Guillermo Martinez | L | 4-3 |
| Challenger Ochsenhausen | 2018/10/09 11:40 | Tomas Konecny v Guillermo Martinez | L | 3-0 |
| Challenger Ochsenhausen | 2018/10/09 07:40 | Andriy Sitak v Guillermo Martinez | L | 3-1 |
| Challenger Ochsenhausen | 2018/11/27 08:40 | Aleksandar Karakasevic v Miroslav Horejsi | L | 2-3 |
| Challenger Ochsenhausen | 2018/11/26 18:20 | Marius Henninger v Aleksandar Karakasevic | W | 0-3 |
| Challenger Ochsenhausen | 2018/11/26 14:20 | Aleksandar Karakasevic v Adrian Wiecek | L | 2-3 |
| Challenger Ochsenhausen | 2018/11/26 10:50 | Aleksandar Karakasevic v Enio Mendes | L | 2-3 |
| Challenger Ochsenhausen | 2018/11/26 09:30 | Aleksandar Karakasevic v Sushmit Sriram | W | 3-0 |
| Qatar Open - XD | 2018/11/20 19:26 | Samuel Walker v Aleksandar Karakasevic | W | 2-3 |
| Challenger Ochsenhausen | 2018/10/05 12:05 | Aleksandar Karakasevic v Gaston Alto | L | 1-3 |
| Challenger Ochsenhausen | 2018/10/05 10:30 | Muhamad Ashraf Haiqal v Aleksandar Karakasevic | W | 1-3 |