| UTR Pro Tennis Series Zadar | 2021/10/02 11:30 | Christos Keisidis v Ivan Denisov | 3-6,6-1,6-5 |
| UTR Pro Tennis Series Zadar | 2021/10/01 09:30 | Maxim Krapivin v Ivan Denisov | 5-7,3-6 |
| UTR Pro Tennis Series Zadar | 2021/09/30 12:00 | Deni Zmak v Ivan Denisov | 2-6,6-2,6-5 |
| UTR Pro Tennis Series Zadar | 2021/09/28 11:00 | Ivan Liutarevich v Ivan Denisov | 3-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/09/27 11:00 | Ivan Denisov v Michalis Sakellaridis | 6-2,5-1 |
| ITF M15 Shymkent | 2021/06/02 05:00 | Ivan Denisov v Beibit Zhukayev | 2-6,2-6 |
| ITF M15 Shymkent | 2021/06/01 07:00 | Ivan Denisov v Olimjon Nabiev | 7-5,6-4 |
| ITF M15 Shymkent | 2021/05/31 09:35 | Ibrokhimjon Urinov v Ivan Denisov | 1-6,1-6 |
| UTR Pro Tennis Series Zadar | 2021/10/02 08:30 | Admir Kalender v Petar Pjevcevic | 6-3,6-1 |
| UTR Pro Tennis Series Zadar | 2021/10/01 12:30 | Petar Pjevcevic v Filip Maric | 4-6,6-2,6-3 |
| UTR Pro Tennis Series Zadar | 2021/09/30 14:00 | Petar Pjevcevic v Lawrence Bataljin | 6-1,6-5 |
| UTR Pro Tennis Series Zadar | 2021/09/29 09:30 | Yanais Laurent v Petar Pjevcevic | 6-2,6-2 |
| UTR Pro Tennis Series Zadar | 2021/09/28 09:30 | Mile Matic v Petar Pjevcevic | 2-6,2-5 |
| ITF M15 Pirot | 2021/09/20 08:00 | Kristof Minarik v Petar Pjevcevic | 7-5,6-4 |
| ITF M15 Pirot | 2021/09/19 09:30 | Danilo Ilic v Petar Pjevcevic | 1-6,1-6 |
| ITF M15 Zlatibor | 2021/09/16 09:40 | Fabian Marozsan v Petar Pjevcevic | 6-3,7-5 |