| UTR Pro Tennis Series Zadar | 2022/06/03 07:30 | Keisidis, Christos v Egor Matvievici | 6-1,7-6 |
| UTR Pro Tennis Series Zadar | 2022/06/02 07:30 | Keisidis, Christos v Filip, Vladimir | 6-3,6-5 |
| UTR Pro Tennis Series Zadar | 2022/06/01 10:30 | Rumler, Robert v Keisidis, Christos | 3-6,6-1,6-1 |
| UTR Pro Tennis Series Zadar | 2022/05/31 11:58 | Minakov, Mikhail v Keisidis, Christos | 6-4,6-2 |
| UTR Pro Tennis Series Zadar | 2021/11/19 09:00 | Zmak, Deni v Keisidis, Christos | 6-1,6-0 |
| UTR Pro Tennis Series Zadar | 2021/11/18 10:30 | Keisidis, Christos v Alexander Chepik | 6-3,6-2 |
| UTR Pro Tennis Series Zadar | 2021/11/16 09:00 | Keisidis, Christos v Parshutin, Denis | 6-3,6-7,6-3 |
| UTR Pro Tennis Series Zadar | 2021/11/15 12:00 | Kolisnyk, Olexiy v Keisidis, Christos | 7-5,3-6,4-6 |
| UTR Pro Tennis Series Zadar | 2022/06/03 10:03 | Trapeznikov, Zakhar v Tsai, Chung Han | 6-1,6-3 |
| UTR Pro Tennis Series Zadar | 2022/06/02 10:45 | Trapeznikov, Zakhar v Niki Kaliyanda Poonacha | 1-6,6-4,1-5 |
| UTR Pro Tennis Series Zadar | 2022/06/01 07:30 | Dinko Dinev v Trapeznikov, Zakhar | 4-6,6-2,4-6 |
| UTR Pro Tennis Series Zadar | 2022/05/31 06:00 | Matyas Fuele v Trapeznikov, Zakhar | 6-2,6-2 |
| UTR Pro Tennis Series Blaricum | 2022/05/08 06:00 | Trapeznikov, Zakhar v Roland Stuurman | 6-3,6-1 |
| UTR Pro Tennis Series Blaricum | 2022/05/07 10:30 | Crepatte, Baptiste v Trapeznikov, Zakhar | 1-4 |
| UTR Pro Tennis Series Blaricum | 2022/05/05 09:00 | Trapeznikov, Zakhar v Guy Den Heijer | 3-6,6-7 |
| UTR Pro Tennis Series Blaricum | 2022/05/04 07:30 | Trapeznikov, Zakhar v Dhoe, Benjamin | 6-0,6-0 |