Stadium: Center Court Round: 14 Ground: Carpet indoor
| Challenger Ismaning | 2021/10/25 11:25 | Zverev, Mischa v Lenz, Julian | 5-7,6-7 |
| Alicante, Spain | 2021/10/14 09:30 | Zverev, Mischa v Frederico Ferreira Silva | 2-6,0-6 |
| Alicante, Spain | 2021/10/11 14:30 | Vladyslav Orlov v Zverev, Mischa | 2-6,1-6 |
| Mouilleron-Le-Captif, France | 2021/10/03 11:00 | Zverev, Mischa v Briand, Jurgen | 3-6,3-6 |
| Orleans, France | 2021/09/26 12:05 | Zverev, Mischa v Kyrian Jacquet | 6-7,1-6 |
| Luedenscheid, Germany | 2021/08/17 14:45 | Zverev, Mischa v Cagnina, Julien | 3-6,1-6 |
| Challenger - Prague | 2021/08/09 15:30 | Riccardo Bonadio v Zverev, Mischa | 6-3,2-6,6-3 |
| Braunchsweig, Germany | 2021/07/06 15:25 | Nicola Kuhn v Zverev, Mischa | 6-2,7-6 |
| ITF M15 Allershausen | 2021/08/31 10:00 | Alen Mujakic v Galarza, Juan Ignacio | 3-6,2-6 |