stadio: Center Court Round: 19 Ground: Clay
| Challenger Biella | 2021/05/16 09:00 | Mischa Zverev v Geoffrey Blancaneaux | 6-2,6-0 |
| ITF M25 Praga | 2021/05/12 07:30 | Mischa Zverev v Peter Goldsteiner | 7-6,5-7,6-1 |
| ATP Monaco | 2021/04/24 11:00 | Mischa Zverev v Daniel Elahi Galan | 3-6,3-6 |
| ATP Monte Carlo | 2021/04/10 10:20 | Mischa Zverev v Juan Ignacio Londero | 4-6,1-6 |
| Challenger Oeiras | 2021/04/08 13:00 | Mischa Zverev v Tiago Cacao | 3-6,6-1,6-7 |
| ATP Miami | 2021/03/24 18:55 | James Duckworth v Mischa Zverev | 6-2,4-6,6-4 |
| ATP Miami | 2021/03/23 18:10 | Matteo Viola v Mischa Zverev | 7-6,4-6,1-6 |
| ATP Miami | 2021/03/22 19:15 | Mischa Zverev v Danilo Petrovic | 7-6,6-2 |
| ITF M15 Troisdorf | 2021/05/09 08:00 | Omar Giacalone v Glenn Smits | 4-6,6-4,7-10 |
| ITF M15 Monastir | 2021/04/27 08:30 | Yunseong Chung v Omar Giacalone | 6-3,6-7,6-2 |
| ITF M15 Monastir | 2021/04/24 09:30 | Omar Giacalone v Christoph Negritu | 4-6,2-6 |
| ITF M15 Monastir | 2021/04/23 15:00 | Omar Giacalone v Laurynas Grigelis | 6-7,6-4,6-2 |
| ITF M15 Monastir | 2021/04/22 08:30 | Omar Giacalone v Alexander Donski | 3-6,6-2,6-3 |
| ITF M15 Monastir | 2021/04/15 08:30 | Eliakim Coulibaly v Omar Giacalone | 6-2,6-4 |
| ITF M15 Monastir | 2021/04/13 10:00 | Omar Giacalone v Keanu Elias Immler | 6-1,6-2 |
| ITF M15 Monastir | 2021/02/26 10:25 | Alexis Gautier v Omar Giacalone | 4-6,6-4,7-6 |