Stadium: Centre Court Round: 25 Ground: Clay
| 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 |
| Challenger Biella | 2021/05/17 08:00 | Zverev, Mischa v Giacalone, Omar | 6-7,2-6 |
| Challenger Biella | 2021/05/16 09:00 | Zverev, Mischa v Geoffrey Blancaneaux | 6-2,6-0 |
| ITF M25 Prague | 2021/05/12 07:30 | Zverev, Mischa v Goldsteiner, Peter | 7-6,5-7,6-1 |
| ATP - Munich | 2021/04/24 11:00 | Zverev, Mischa v Daniel Elahi Galan | 3-6,3-6 |
| ATP - Monte-Carlo | 2021/04/10 10:20 | Zverev, Mischa v Londero, Juan Ignacio | 4-6,1-6 |
| Challenger - Oeiras | 2021/04/08 13:00 | Zverev, Mischa v Cacao, Tiago | 3-6,6-1,6-7 |
| San Marino, San Marino | 2021/08/10 14:45 | Cagnina, Julien v Holger Rune | 3-6,4-6 |
| ITF - M25 Vic | 2021/05/16 08:00 | Cagnina, Julien v Max Alcala Gurri | 6-7,7-6,1-10 |
| ITF - M25 Reus | 2021/04/13 07:30 | Imanol L Morillo v Cagnina, Julien | 6-4,3-6,10-1 |
| ITF - M25 Reus | 2021/04/12 07:30 | Rudiukov, Ilya v Cagnina, Julien | 3-6,0-6 |
| ITF - M25 Reus | 2021/04/11 10:00 | Pol Amoros Ramos v Cagnina, Julien | 0-6,0-6 |
| ITF - M15 Antalya | 2021/03/10 10:05 | Cagnina, Julien v Oleksii Krutykh | 6-1,1-6,3-6 |
| ITF - M15 Antalya | 2021/03/09 07:00 | Cagnina, Julien v Andrea Picchione | 6-3,7-6 |
| ITF - M15 Antalya | 2021/03/08 09:00 | Cagnina, Julien v Dian Nedev | 7-6,6-1 |