| Challenger Ochsenhausen | 08/14 09:10 | 1 | Enio Mendes v Karakasevic, Aleksandar | L | 3-1 | |
| Challenger Ochsenhausen | 08/14 07:10 | 1 | Michal Benes v Karakasevic, Aleksandar | W | 1-3 | |
| Challenger Ochsenhausen | 08/13 11:50 | 1 | Petr David v Karakasevic, Aleksandar | W | 1-3 | |
| Challenger Ochsenhausen | 08/13 09:10 | 1 | Karakasevic, Aleksandar v Chtchetinine, Evgueni | W | 3-2 | |
| Challenger Ochsenhausen | 08/13 06:30 | 1 | Karakasevic, Aleksandar v Uribe, Salvador | W | 3-0 | |
| Challenger Ochsenhausen | 08/12 11:10 | 1 | Karakasevic, Aleksandar v Jiri Vrablik | L | 1-3 | |
| Challenger Ochsenhausen | 08/12 08:30 | 1 | de Saintilan, Mathieu v Karakasevic, Aleksandar | L | 3-2 | |
| Challenger Ochsenhausen | 08/11 12:35 | 1 | Karakasevic, Aleksandar v Dauud Cheaib | L | 0-3 | |
| Challenger Ochsenhausen | 08/11 11:00 | 1 | Petr David v Karakasevic, Aleksandar | W | 1-3 | |
| Challenger Ochsenhausen | 08/11 09:40 | 1 | Karakasevic, Aleksandar v Michal Benes | W | 3-2 | |
| Challenger Ochsenhausen | 08/10 19:20 | 1 | de Saintilan, Mathieu v Karakasevic, Aleksandar | W | 2-3 | |
| Challenger Ochsenhausen | 08/10 16:40 | 1 | Carlos Muhlbach v Karakasevic, Aleksandar | W | 1-3 | |
| Challenger Ochsenhausen | 08/10 14:40 | 1 | Enio Mendes v Karakasevic, Aleksandar | W | 2-3 | |
| Challenger Ochsenhausen | 08/10 09:50 | 1 | Dauud Cheaib v Karakasevic, Aleksandar | W | 1-3 | |
| Challenger Ochsenhausen | 08/10 07:10 | 1 | Jiri Vrablik v Karakasevic, Aleksandar | W | 1-3 | |
| Challenge Plus Oman Open 2020, MS | 03/13 13:40 | 5 | Karakasevic, Aleksandar v Yang Wang | L | 1-4 | |
| Challenge Plus Portugal Open 2020, MS, Quali | 02/14 14:50 | 6 | Mihai Bobocica v Karakasevic, Aleksandar | L | 4-2 | |
| German Open 2020, MS | 01/28 16:35 | - | Karakasevic, Aleksandar v Vitor Ishiy | L | 3-4 | |
| Swedish Open (WTP) 2019, MS, Qualification | 10/02 09:50 | - | Karakasevic, Aleksandar v Chuang, Chih-Yuan | L | 2-4 | |
| Swedish Open (WTP) 2019, MS, Qualification | 10/01 12:30 | - | Truls Moregard v Karakasevic, Aleksandar | W | 1-4 | |
| Euro Team Champs | 09/04 09:30 | 1 | Karakasevic, Aleksandar v Jakub Dyjas | W | 3-2 | |
| Euro Team Champs | 09/04 08:00 | 1 | Karakasevic, Aleksandar v Marek Badowski | L | 0-3 | |
| Euro Team Champs | 09/03 12:30 | 1 | Cedric Nuytinck v Karakasevic, Aleksandar | L | 3-2 | |
| Euro Team Champs | 09/03 11:30 | 1 | Florent Lambiet v Karakasevic, Aleksandar | W | 1-3 | |
| Bulgaria Open 2019, MS | 08/13 14:10 | - | Xia, Yizheng v Karakasevic, Aleksandar | W | 1-4 | |
| Challenger Ochsenhausen | 08/09 12:10 | 1 | Karakasevic, Aleksandar v Enzo Angles | W | 3-1 | |
| Challenger Ochsenhausen | 08/09 10:45 | 1 | Gorak, Daniel v Karakasevic, Aleksandar | W | 0-3 | |
| Challenger Ochsenhausen | 08/09 09:10 | 1 | Ollivier, Brice v Karakasevic, Aleksandar | W | 0-3 | |
| Challenger Ochsenhausen | 08/09 07:50 | 1 | Enzo Angles v Karakasevic, Aleksandar | L | 3-2 | |
| Challenger Ochsenhausen | 08/08 11:10 | 1 | Karakasevic, Aleksandar v Gorak, Daniel | W | 3-1 |