| TT Cup Ukraine | 2021/02/03 16:40 | Maxim Naumchuk v Serhiy Tkachuk | W | 1-3 |
| TT Cup Ukraine | 2021/02/03 14:55 | Alexander Michalus v Serhiy Tkachuk | L | 3-0 |
| TT Cup Ukraine | 2021/01/31 19:35 | Alexander Michalus v Serhiy Tkachuk | L | 3-2 |
| TT Cup Ukraine | 2021/01/31 17:15 | Mykolay Treschetka v Serhiy Tkachuk | L | 3-1 |
| TT Cup Ukraine | 2021/01/31 15:30 | Oleg Shevchuk v Serhiy Tkachuk | W | 0-3 |
| TT Cup (2021) | 2021/01/31 14:20 | Maxim Naumchuk v Serhiy Tkachuk | L | 3-2 |
| TT Cup Ukraine | 2020/10/08 10:20 | Oleg Volynets v Serhiy Tkachuk | L | 3-1 |
| TT Cup Ukraine | 2020/10/08 09:45 | Serhiy Tkachuk v Mykola Uchen | W | 3-2 |