| Challenger - Ochsenhausen | 2021/07/07 10:10 | Andriy Sitak v Fedor Kuzmin | L | 1-3 |
| Challenger - Ochsenhausen | 2021/07/07 08:30 | Andriy Sitak v Valerij Rakov | L | 0-3 |
| Oekraïne - TT Cup | 2021/06/11 22:15 | Andriy Sitak v Vitaliy Lyevshin | L | 0-3 |
| Oekraïne - TT Cup | 2021/06/11 21:40 | Andriy Sitak v Valeriy Melnik | W | 3-0 |
| Oekraïne - TT Cup | 2021/06/11 21:05 | Andriy Sitak v Bohdan Kohut | W | 3-1 |
| Oekraïne - TT Cup | 2021/06/11 20:00 | Andriy Sitak v Vitaliy Lyevshin | L | 2-3 |
| Oekraïne - TT Cup | 2021/06/11 19:30 | Andriy Sitak v Valeriy Melnik | W | 3-2 |
| Oekraïne - TT Cup | 2021/06/11 18:55 | Andriy Sitak v Bohdan Kohut | W | 3-1 |
| Challenger - Ochsenhausen | 2021/07/07 10:35 | Jeet Chandra v Evgueni Chtchetinine | L | 1-3 |
| Challenger - Ochsenhausen | 2021/07/07 09:20 | Jeet Chandra v Snehit Suravajjula | W | 3-2 |
| Challenger - Ochsenhausen | 2021/07/06 14:00 | Jeet Chandra v Josip Huzjak | L | 1-3 |
| Challenger - Ochsenhausen | 2021/07/06 12:35 | Harmeet Desai v Jeet Chandra | L | 3-0 |
| Challenger - Ochsenhausen | 2021/07/06 11:40 | Jeet Chandra v Harmeet Desai | L | 0-3 |
| Challenger - Ochsenhausen | 2021/07/06 09:00 | Jeet Chandra v Alessandro Baciocchi | W | 3-0 |
| Challenger - Ochsenhausen | 2021/07/05 20:00 | Jeet Chandra v Maciej Kubik | L | 2-3 |
| Challenger - Ochsenhausen | 2021/07/05 15:20 | Jeet Chandra v Dwain Schwarzer | W | 3-0 |