| TT Cup Ukraine | 05/17 13:10 | - | Oleksandr Leonenko v Serhii Illiushchenko | L | 3-0 | |
| TT Cup Ukraine | 05/02 18:30 | - | Serhii Illiushchenko v Anatolii Zapletniuk | L | 0-3 | |
| TT Cup Ukraine | 05/02 17:20 | - | Serhii Illiushchenko v Andrey Troyan | W | 3-1 | |
| TT Cup Ukraine | 05/02 16:10 | - | Serhii Illiushchenko v Vitalii Protopopov | W | 3-2 | |
| TT Cup Ukraine | 05/02 15:35 | - | Serhii Illiushchenko v Andrey Troyan | L | 0-3 | |
| TT Cup Ukraine | 05/02 13:50 | - | Vitalii Protopopov v Serhii Illiushchenko | L | 3-1 | |
| TT Cup Ukraine | 05/02 13:15 | - | Anatolii Zapletniuk v Serhii Illiushchenko | W | 1-3 | |
| TT Cup Ukraine | 05/01 17:20 | - | Vitalii Protopopov v Serhii Illiushchenko | L | 3-0 | |
| TT Cup Ukraine | 05/01 16:45 | - | Serhii Illiushchenko v Yurii Volkov | L | 0-3 | |
| TT Cup Ukraine | 05/01 14:25 | - | Serhii Illiushchenko v Anatolii Zapletniuk | L | 0-3 | |
| TT Cup Ukraine | 05/01 12:40 | - | Serhii Illiushchenko v Andrey Troyan | W | 3-0 | |
| TT Cup Ukraine | 04/27 12:05 | - | Andrii Kurtenko v Serhii Illiushchenko | L | 3-0 | |
| TT Cup Ukraine | 04/27 10:20 | - | Andrii Kurtenko v Serhii Illiushchenko | L | 3-2 | |
| TT Cup Ukraine | 04/27 09:45 | - | Serhii Illiushchenko v Artem Nesterenko | W | 3-1 | |
| TT Cup Ukraine | 04/27 07:25 | - | Serhii Illiushchenko v Dmitriy Belanchik | W | 3-1 | |
| TT Cup Ukraine | 04/27 05:40 | - | Serhii Illiushchenko v Vitalii Protopopov | W | 3-1 | |
| TT Cup Ukraine | 04/26 11:30 | - | Vitalii Protopopov v Serhii Illiushchenko | W | 1-3 | |
| TT Cup Ukraine | 04/26 10:55 | - | Serhii Illiushchenko v Artem Nesterenko | L | 1-3 | |
| TT Cup Ukraine | 04/26 09:45 | - | Serhii Illiushchenko v Dmytro Belanchyk | L | 1-3 | |
| TT Cup Ukraine | 04/26 08:35 | - | Serhii Illiushchenko v Dmytro Belanchyk | L | 2-3 | |
| TT Cup Ukraine | 04/26 06:50 | - | Artem Nesterenko v Serhii Illiushchenko | W | 2-3 | |
| TT Cup Ukraine | 04/26 06:15 | - | Vitalii Protopopov v Serhii Illiushchenko | W | 0-3 | |
| TT Cup Ukraine | 03/31 11:30 | - | Serhii Illiushchenko v Andrii Kurtenko | L | 0-3 | |
| TT Cup Ukraine | 03/31 10:20 | - | Andrii Isaiev v Serhii Illiushchenko | W | 1-3 | |
| TT Cup Ukraine | 03/31 09:45 | - | Serhii Illiushchenko v Vitalii Protopopov | L | 1-3 | |
| TT Cup Ukraine | 03/31 07:25 | - | Serhii Illiushchenko v Shimshon Tel Aviv | L | 2-3 | |
| TT Cup Ukraine | 03/31 05:40 | - | Serhii Illiushchenko v Andrii Kurtenko | W | 3-0 | |
| TT Cup Ukraine | 03/30 16:30 | - | Artem Tkachenko v Serhii Illiushchenko | L | 3-0 | |
| TT Cup (2021) | 03/30 12:05 | - | Artem Tkachenko v Serhii Illiushchenko | L | 3-0 | |
| TT Cup Ukraine | 03/30 09:10 | - | Golubovskaya/Pogrebnyak v Serhii Illiushchenko | W | 2-3 |