| TT Cup | 2021/06/13 07:10 | Didukh, Oleksandr v Viktor Yefimov | L | 2-3 |
| TT Cup | 2021/04/04 10:50 | Viktor Yefimov v Didukh, Oleksandr | L | 3-2 |
| TT Cup | 2021/04/03 10:15 | Didukh, Oleksandr v Viktor Yefimov | L | 1-3 |
| TT Cup | 2021/04/03 07:20 | Didukh, Oleksandr v Viktor Yefimov | W | 3-2 |
| TT Cup | 2021/03/10 18:50 | Viktor Yefimov v Didukh, Oleksandr | W | 0-3 |
| TT Cup | 2021/03/10 16:30 | Didukh, Oleksandr v Viktor Yefimov | L | 0-3 |
| TT Cup | 2021/03/09 13:35 | Viktor Yefimov v Didukh, Oleksandr | L | 3-2 |
| TT Cup | 2021/03/02 13:35 | Viktor Yefimov v Didukh, Oleksandr | L | 3-0 |
| TT Cup | 2021/06/28 19:00 | Lyevshyn, Vitaliy v Didukh, Oleksandr | W | 0-3 |
| TT Cup | 2021/06/28 18:25 | Didukh, Oleksandr v Tuzhylin, Alexander | W | 3-0 |
| TT Cup | 2021/06/28 16:40 | Didukh, Oleksandr v Anton Limonov | L | 1-3 |
| TT Cup | 2021/06/28 15:30 | Lyevshyn, Vitaliy v Didukh, Oleksandr | W | 1-3 |
| TT Cup | 2021/06/28 14:55 | Didukh, Oleksandr v Anton Limonov | L | 2-3 |
| TT Cup | 2021/06/28 13:10 | Didukh, Oleksandr v Tuzhylin, Alexander | W | 3-1 |
| TT Cup | 2021/06/27 18:25 | Tuzhylin, Alexander v Didukh, Oleksandr | W | 1-3 |
| TT Cup | 2021/06/27 17:15 | Lyevshyn, Vitaliy v Didukh, Oleksandr | W | 2-3 |
| TT Cup | 2021/08/14 05:35 | Anton Limonov v Viktor Yefimov | L | 3-0 |
| European Championships | 2021/06/24 18:20 | Joao Monteiro v Viktor Yefimov | L | 4-0 |
| European Championships | 2021/06/22 07:50 | Benedek Olah v Viktor Yefimov | W | 2-3 |
| TT Cup | 2021/06/13 10:05 | Anton Limonov v Viktor Yefimov | W | 1-3 |
| TT Cup | 2021/06/13 08:20 | Quadri Aruna v Viktor Yefimov | L | 3-2 |
| TT Cup | 2021/06/13 07:10 | Didukh, Oleksandr v Viktor Yefimov | W | 2-3 |
| TT Cup | 2021/06/12 10:05 | Anton Limonov v Viktor Yefimov | L | 3-2 |
| TT Cup | 2021/06/12 08:20 | Tuzhylin, Alexander v Viktor Yefimov | W | 2-3 |