| TT Cup Ukraine | 02/10 23:15 | - | Viktor Kotov v Serhiy Tkachuk | L | 3-1 | |
| TT Cup Ukraine | 02/10 22:15 | - | Serhiy Tkachuk v Iurii Prokhoruk | L | 0-3 | |
| TT Cup Ukraine | 02/03 20:45 | - | Oleksandr Mykhalus v Serhiy Tkachuk | L | 3-0 | |
| TT Cup Ukraine | 02/03 19:35 | - | Serhiy Tkachuk v Oleg Shevchuk | W | 3-2 | |
| TT Cup Ukraine | 02/03 18:25 | - | Mykola Treshchetka v Serhiy Tkachuk | W | 0-3 | |
| TT Cup Ukraine | 02/03 16:40 | - | Maxim Naumchuk v Serhiy Tkachuk | W | 1-3 | |
| TT Cup Ukraine | 02/03 14:55 | - | Oleksandr Mykhalus v Serhiy Tkachuk | L | 3-0 | |
| TT Cup Ukraine | 01/31 19:35 | - | Oleksandr Mykhalus v Serhiy Tkachuk | L | 3-2 | |
| TT Cup Ukraine | 01/31 17:15 | - | Mykola Treshchetka v Serhiy Tkachuk | L | 3-1 | |
| TT Cup Ukraine | 01/31 15:30 | - | Oleg Shevchuk v Serhiy Tkachuk | W | 0-3 | |
| TT Cup (2021) | 01/31 14:20 | - | Maxim Naumchuk v Serhiy Tkachuk | L | 3-2 | |
| TT Cup Ukraine | 10/08 10:20 | - | Oleg Volynets v Serhiy Tkachuk | L | 3-1 | |
| TT Cup Ukraine | 10/08 09:45 | - | Serhiy Tkachuk v Mykola Uchen | W | 3-2 | |
| TT Cup Ukraine | 10/08 07:25 | - | Serhiy Tkachuk v Vitalii Krivenko | W | 3-1 | |
| TT Cup Ukraine | 10/08 05:40 | - | Serhiy Tkachuk v Vasyl Aksenin | L | 2-3 |