Stadium: Court 2 Round: 54 Ground: Carpet indoor
| ITF - M25 Praag | 2021/10/03 09:00 | Dominik Kellovsky v Krystof Zapsky | 6-3,6-0 |
| UTR Pro Tennis Series - Říčany | 2021/09/12 07:30 | Dominik Kellovsky v Krystof Zapsky | 6-1,6-1 |
| UTR Pro Tennis Series - Říčany | 2021/09/11 07:30 | Krystof Zapsky v Yanais Laurent | 6-2,6-4 |
| UTR Pro Tennis Series - Říčany | 2021/09/10 10:30 | Adam Krischke v Krystof Zapsky | 4-6,1-3 |
| UTR Pro Tennis Series - Říčany | 2021/09/07 12:30 | Marek Jaloviec v Krystof Zapsky | 6-3,3-6,5-1 |
| UTR Pro Tennis Series - Říčany | 2021/09/06 09:00 | Krystof Zapsky v Jiri Barnat | 0-6,3-6 |
| ITF M25 - Říčany | 2021/08/30 09:00 | Marcelo Zormann v Krystof Zapsky | 6-2,6-3 |
| ITF M25 - Říčany | 2021/08/29 10:30 | Lars Aregger v Krystof Zapsky | 6-7,2-6 |
| ITF - M15 Antalya | 2021/10/24 07:00 | Leyton Rivera v Kalin Ivanovski | 3-6,6-7 |
| ITF - M15 Antalya | 2021/10/10 07:00 | Leyton Rivera v Mark Havlicek | 2-6,2-6 |
| ITF M15 - Caïro | 2021/09/19 10:30 | Karan Singh v Leyton Rivera | 6-2,6-3 |
| ITF M15 - Caïro | 2021/09/12 07:00 | Nitin Kumar Sinha v Leyton Rivera | 7-5,6-2 |
| ITF M15 - Žilina | 2021/08/31 07:30 | Paul Valsecchi v Leyton Rivera | 6-3,6-4 |
| ITF M15 - Žilina | 2021/08/30 07:30 | Jan Jermar v Leyton Rivera | 6-7,3-6 |
| ITF M15 - Bratislava | 2021/08/23 09:00 | Janos Fekete v Leyton Rivera | 6-2,7-5 |
| ITF M15 - Bratislava | 2021/08/17 08:00 | Leyton Rivera v Tomas Lanik | 6-7,2-6 |