| Challenger Ochsenhausen | 2018/06/20 07:10 | Andriy Sitak v Karakasevic, Aleksandar | L | 1-3 |
| Challenger Ochsenhausen | 2018/06/18 14:00 | Karakasevic, Aleksandar v Andriy Sitak | L | 3-0 |
| Challenger Ochsenhausen | 2019/01/28 19:00 | Andriy Sitak v Filip Zeljko | L | 0-3 |
| Challenger Ochsenhausen | 2019/01/28 16:20 | Frane Kojic v Andriy Sitak | L | 3-0 |
| Challenger Ochsenhausen | 2019/01/28 12:50 | Josip Huzjak v Andriy Sitak | L | 3-2 |
| Challenger Ochsenhausen | 2019/01/28 10:50 | Andriy Sitak v Kuzmin, Fedor | L | 1-3 |
| Challenger Ochsenhausen | 2019/01/28 08:50 | Andriy Sitak v Rakov, Valerij | L | 0-3 |
| Challenger Ochsenhausen | 2019/01/08 15:00 | Andriy Sitak v Petr David | L | 0-3 |
| Challenger Ochsenhausen | 2019/01/08 13:35 | Yannick Vostes v Andriy Sitak | W | 2-3 |
| Challenger Ochsenhausen | 2019/01/08 10:40 | Pawel Grela v Andriy Sitak | W | 1-3 |
| Challenger Ochsenhausen | 2019/01/28 19:40 | Josip Huzjak v Karakasevic, Aleksandar | W | 1-3 |
| Challenger Ochsenhausen | 2019/01/28 17:40 | Karakasevic, Aleksandar v Kuzmin, Fedor | W | 3-1 |
| Challenger Ochsenhausen | 2019/01/28 15:00 | Karakasevic, Aleksandar v Rakov, Valerij | W | 3-1 |
| Challenger Ochsenhausen | 2019/01/28 12:10 | Karakasevic, Aleksandar v Filip Zeljko | L | 0-3 |
| Challenger Ochsenhausen | 2019/01/28 09:30 | Schabacker, Jens v Karakasevic, Aleksandar | W | 0-3 |
| Qatar Open XD | 2019/01/15 16:45 | Niagol Stoyanov v Karakasevic, Aleksandar | L | 4-0 |
| Challenger Ochsenhausen | 2018/12/20 11:30 | Karakasevic, Aleksandar v Kuzmin, Fedor | W | 3-2 |
| Challenger Ochsenhausen | 2018/12/20 08:50 | Karakasevic, Aleksandar v Demeter, Lehel | L | 1-3 |