| UTR Pro Tennis Series Ricany | 2021/09/07 12:30 | Marek Jaloviec v Krystof Zapsky | 6-3,3-6,5-1 |
| UTR Pro Tennis Series Ricany | 2021/09/06 09:00 | Krystof Zapsky v Jiri Barnat | 0-6,3-6 |
| ITF M25 Ricany | 2021/08/30 09:00 | Marcelo Zormann v Krystof Zapsky | 6-2,6-3 |
| ITF M25 Ricany | 2021/08/29 10:30 | Lars Aregger v Krystof Zapsky | 6-7,2-6 |
| ITF M15 Lodz | 2021/08/16 08:00 | Kamil Gajewski v Krystof Zapsky | 6-3,6-3 |
| Challenger Prague | 2021/08/08 08:30 | Franco Agamenone v Krystof Zapsky | 6-2,6-3 |
| ITF M25 Wroclaw | 2021/06/27 14:00 | Toby Alex Kodat v Krystof Zapsky | 6-0,6-2 |
| ITF M25 Most | 2021/05/23 14:00 | Krystof Zapsky v Daniel Siniakov | 4-6,3-6 |