Stadium: Court C Round: 54 Ground: Clay
| ITF M25 Grodzisk Mazowiecki | 2021/08/01 13:25 | Dawid Taczala v Lahky, Nikolas | 6-2,6-2 |
| ITF M15 Novi Sad | 2021/07/26 12:00 | Lahky, Nikolas v Atlangeriev, Bekkhan | 3-6,2-6 |
| ITF M15 Novi Sad | 2021/07/25 12:00 | Marko Stakusic v Lahky, Nikolas | 3-6,5-7 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Lahky, Nikolas v Samuel Puskar | 3-6,2-6 |
| ITF M15 Poprad | 2021/07/04 08:00 | Janos Fekete v Lahky, Nikolas | 6-2,7-6 |
| ITF M25 Wroclaw | 2021/06/27 12:30 | Novansky, Michal v Lahky, Nikolas | 6-4,6-4 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/05/31 12:00 | Trocker, Moritz v Lahky, Nikolas | 6-2,6-1 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/05/30 10:30 | Lahky, Nikolas v Pjevcevic, Petar | 6-3,7-5 |
| Prostejov, Singles M-ITF-CZE-04A | 2021/08/15 08:00 | Filip Kana v Victor Sklenka | 1-6,1-6 |
| Challenger - Prague | 2021/08/08 08:30 | Victor Sklenka v Ignatik, Uladzimir | 0-6,0-6 |
| ITF M25 Prague | 2021/05/10 08:00 | Victor Sklenka v Andrew Paulson | 1-6,2-6 |
| ITF M15 Cairo | 2021/05/04 08:00 | Uzhylovsky, Vladimir v Victor Sklenka | 6-1,6-0 |
| ITF M15 Cairo | 2021/05/03 11:00 | Victor Sklenka v Chin, Christian Didier | 6-1,2-6,10-6 |
| ITF M25 Pardubice | 2020/09/27 09:00 | Victor Sklenka v Veldheer, Mick | 1-6,2-6 |
| ITF M25 Prague | 2020/09/13 08:00 | Lucas Gerch v Victor Sklenka | 6-0,6-1 |