| UTR Pro Tennis Series Zadar | 2022/05/30 06:00 | Dmitrii Vasilev v Noa Vukadin | 6-2,0-6,2-6 |
| ITF - M15 Antalya | 2022/05/22 07:00 | Francisco, Luis v Dmitrii Vasilev | 6-4,6-3 |
| ITF - M15 Antalya | 2022/05/16 08:25 | Paul Woerner v Dmitrii Vasilev | 6-7,7-5,10-4 |
| ITF - M15 Antalya | 2022/05/15 07:00 | Kim Kristensen, D. v Dmitrii Vasilev | 3-6,2-6 |
| ITF M15 Kazan | 2021/11/22 12:10 | Dmitrii Vasilev v Uvarov, Andrey | 4-6,5-7 |
| ITF - M15 Antalya | 2021/11/14 06:30 | Toby Martin v Dmitrii Vasilev | 7-5,6-1 |
| ITF - M15 Antalya | 2021/11/07 06:30 | Dmitrii Vasilev v Bielinskyi, Oleksandr | 1-6,6-1,3-10 |
| ITF - M15 Antalya | 2021/11/02 08:30 | Cungu, Rrezart v Dmitrii Vasilev | 6-3,6-3 |
| UTR Pro Tennis Series Zadar | 2022/05/30 06:00 | Kajin, Karlo v Maximilian Homberg | 4-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/07/04 08:30 | Jerko Brkic v Kajin, Karlo | 6-4,6-4 |
| UTR Pro Tennis Series Zadar | 2021/07/03 11:30 | Ihor Dudun v Kajin, Karlo | 3-6,1-6 |
| UTR Pro Tennis Series Zadar | 2021/07/01 11:00 | Kajin, Karlo v Matija Pecotic | 1-6,2-5 |
| UTR Pro Tennis Series Zadar | 2021/06/30 09:30 | Kajin, Karlo v Kiefer, Alexander | 3-6,1-6 |
| UTR Pro Tennis Series Zadar | 2021/06/29 12:30 | Kajin, Karlo v Khomich, Aleksei | 6-4,3-6,2-6 |
| 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 |