Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Opatija | 2021/03/25 09:00 | Sebastian Prechtel v Oleksandr Ovcharenko | 4-6,2-6 |
| ITF - M15 Sharm-el-Sheikh | 2021/11/01 07:00 | Oleksandr Ovcharenko v Haoyuan Huang | 4-6,6-3,9-11 |
| ITF - M15 Sharm-el-Sheikh | 2021/10/31 09:30 | Oleksandr Ovcharenko v Sergo Sikharulidze | 6-7,7-6,10-6 |
| ITF M15 - Pirot | 2021/09/23 09:16 | Luka Pavlovic v Oleksandr Ovcharenko | 6-7,6-3,6-4 |
| ITF M15 - Zlatibor | 2021/09/17 09:55 | Oleksandr Ovcharenko v Marko Tepavac | 3-6,4-6 |
| ITF M15 - Zlatibor | 2021/09/16 09:40 | Oleksandr Ovcharenko v Veljko Krstic | 6-1,6-1 |
| ITF M15 - Zlatibor | 2021/09/15 09:35 | Oleksandr Ovcharenko v Gorazd Srbljak | 6-4,4-6,6-2 |
| ITF M15 - Ulcinj | 2021/09/11 07:55 | Oleksandr Ovcharenko v Bastian Malla | 6-4,1-6,3-6 |
| ITF M15 - Ulcinj | 2021/09/10 09:00 | Oleksandr Ovcharenko v Alejo Lorenzo Lingua Lavallen | 6-3,6-3 |
| ITF - M15 Sharm-el-Sheikh | 2021/11/03 13:30 | Sebastian Prechtel v Nam Hoang Ly | 7-5,4-6,1-6 |
| ITF - M15 Selva Gardena | 2021/10/26 14:30 | Sebastian Prechtel v Mick Veldheer | 5-7,4-6 |
| ITF M15 - Sozopol | 2021/10/13 15:35 | Sebastian Prechtel v Marko Tepavac | 0-6,3-6 |
| ITF M25 Pretoria | 2021/10/01 13:35 | Sebastian Prechtel v Khololwam Montsi | 2-6,3-6 |
| ITF M25 Pretoria | 2021/09/30 07:30 | Benjamin Lock v Sebastian Prechtel | 6-2,3-6,5-7 |
| ITF M25 Pretoria | 2021/09/29 11:50 | Jody Alan Claassen v Sebastian Prechtel | 3-6,1-6 |
| ITF M25 - Johannesburg | 2021/09/23 07:00 | Sebastian Prechtel v Alastair Gray | 3-6,0-6 |
| ITF M25 - Johannesburg | 2021/09/21 10:40 | Filip Peliwo v Sebastian Prechtel | 3-6,4-6 |