| UTR ProTennis Series Zadar | 2021/06/28 08:00 | Karlo Kajin v Ryan Goetz | 1-6,1-5 |
| ITF Croatia F3 | 2018/03/19 12:30 | Tommaso Gabrieli v Karlo Kajin | 7-6,6-4 |
| ITF Croatia F3 | 2018/03/18 10:30 | Marco De Rosa v Karlo Kajin | 6-7,6-2,2-6 |
| ITF Croatia F2 | 2018/03/12 08:00 | Andres Gabriel Ciurletti v Karlo Kajin | 6-3,6-3 |
| ITF Croatia F2 | 2018/03/10 09:00 | Karlo Kajin v Justin Schlageter | 3-6,6-2,6-4 |
| ITF Croatia F1 | 2018/03/08 09:00 | Pascal Meis v Karlo Kajin | 6-3,6-1 |
| ITF Austria F5 | 2017/07/29 07:00 | Charles Broom v Karlo Kajin | 6-0,6-4 |
| ITF Croatia F4 Qual | 2016/03/19 10:30 | Mihnea L.S. Turcu v Karlo Kajin | 1-6,6-2,6-0 |
| UTR ProTennis Series Zadar | 2021/06/28 08:00 | Aleksei Khomich v Matija Pecotic | 1-6,2-5 |
| ITF M15 Shymkent | 2021/05/25 07:50 | Aleksei Khomich v Roman Nashatyrkin | 4-6,1-6 |
| ITF M15 Shymkent | 2021/05/24 06:35 | Aleksei Khomich v Adil Karakayev | 6-1,6-0 |
| ITF M15 Antalya | 2021/05/17 07:00 | Bastien Presuhn v Aleksei Khomich | 7-5,6-3 |
| ITF M15 Antalya | 2021/05/16 07:00 | Daniel Svensson v Aleksei Khomich | 2-6,6-2,6-10 |
| ITF M15 Antalya | 2021/05/09 07:00 | Adrian Mateo Bejenaru v Aleksei Khomich | 6-4,6-1 |
| ITF M15 Shymkent | 2021/04/13 05:00 | Aleksei Khomich v Federico Bertuccioli | 2-6,4-6 |
| ITF M15 Shymkent | 2021/04/07 04:50 | Vladyslav Manafov v Aleksei Khomich | 6-1,6-4 |