Stadium: Center Court Round: 14 Ground: Clay
| Challenger Heilbronn | 2021/05/09 10:00 | Joao Menezes v Nicola Kuhn | 6-1,6-4 |
| Challenger Biella | 2021/05/03 10:15 | Nicola Kuhn v Felipe Meligeni Rodrigues Alves | 2-6,4-6 |
| Challenger Biella | 2021/05/02 12:40 | Quentin Halys v Nicola Kuhn | 6-7,2-6 |
| Challenger Oeiras | 2021/04/05 14:00 | Nicola Kuhn v Manuel Guinard | 1-6,4-6 |
| Challenger Oeiras | 2021/03/31 10:00 | Raul Brancaccio v Nicola Kuhn | 6-1,6-2 |
| Challenger Oeiras | 2021/03/29 12:00 | Nicola Kuhn v Teymuraz Gabashvili | 6-3,6-3 |
| Challenger Lille | 2021/03/25 16:20 | Arthur Rinderknech v Nicola Kuhn | 6-3,6-1 |
| Challenger Lille | 2021/03/23 10:45 | Matteo Martineau v Nicola Kuhn | 3-6,2-6 |
| ITF M15 Antalya | 2021/05/14 08:55 | Jacopo Berrettini v Francesco Forti | 2-6,6-2,1-6 |
| ITF M15 Antalya | 2021/05/13 08:45 | David Pichler v Jacopo Berrettini | 6-7,6-3,4-6 |
| ITF M15 Antalya | 2021/05/12 09:15 | Jacopo Berrettini v Edoardo Eremin | 0-6,6-4,6-2 |
| ITF M15 Antalya | 2021/05/06 11:10 | Filip Cristian Jianu v Jacopo Berrettini | 6-2,6-4 |
| ITF M15 Antalya | 2021/05/04 08:00 | Burak Bilgin v Jacopo Berrettini | 1-6,1-6 |
| ITF M15 Antalya | 2021/04/29 10:10 | Jacopo Berrettini v Jeroen Vanneste | 4-6,0-6 |
| ITF M15 Antalya | 2021/04/28 10:00 | Jacopo Berrettini v Koray Kirci | 6-2,6-0 |
| ATP Cagliari | 2021/04/04 08:00 | Jacopo Berrettini v Liam Broady | 4-6,1-6 |