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