Stadium: Court 6 (c) Round: 25 Ground: Clay
| Challenger Eckental | 2021/11/01 10:00 | Mischa Zverev v Christopher Heyman | 3-6,6-3,2-6 |
| Challenger Eckental | 2021/10/31 11:30 | Mischa Zverev v Alen Mujakic | 6-2,6-1 |
| Challenger Ismaning | 2021/10/25 11:25 | Mischa Zverev v Julian Lenz | 5-7,6-7 |
| Challenger Alicante | 2021/10/14 09:30 | Mischa Zverev v Frederico Ferreira Silva | 2-6,0-6 |
| Challenger Alicante | 2021/10/11 14:30 | Vladyslav Orlov v Mischa Zverev | 2-6,1-6 |
| Challenger Mouilleron le Captif | 2021/10/03 11:00 | Mischa Zverev v Jurgen Briand | 3-6,3-6 |
| Challenger Orleans | 2021/09/26 12:05 | Mischa Zverev v Kyrian Jacquet | 6-7,1-6 |
| Challenger Luedenscheid | 2021/08/17 14:45 | Mischa Zverev v Julien Cagnina | 3-6,1-6 |
| ITF M25 Prague | 2021/05/11 08:00 | Vaclav Safranek v Jakub Beran | 6-2,6-2 |
| ITF M25 Prague | 2021/05/10 08:00 | Vaclav Safranek v Kristof Minarik | 6-2,6-1 |
| ITF M25 Prague | 2021/05/09 08:30 | Vaclav Safranek v Jeremy Schifris | 6-1,6-0 |
| Challenger Lille | 2021/03/22 16:00 | Gregoire Barrere v Vaclav Safranek | 6-4,6-7,6-0 |
| ITF M15 Porec | 2021/03/10 09:00 | Alexandar Lazarov v Vaclav Safranek | 7-5,6-4 |
| ATP Rotterdam | 2021/02/27 10:00 | Vaclav Safranek v Pierre-Hugues Herbert | 6-7,2-6 |
| Challenger Potchefstroom Qual | 2021/02/14 10:10 | Benjamin Lock v Vaclav Safranek | 7-6,6-4 |
| Challenger Potchefstroom | 2021/02/08 09:30 | Liam Broady v Vaclav Safranek | 6-3,6-2 |