Stadium: Center Court Round: 29 Ground: Clay
| Challenger Biella MD | 2021/05/20 14:25 | King/Lenz v Cobolli/Passaro | 7-5,7-6 |
| Challenger Biella MD | 2021/05/19 15:20 | King/Lenz v Bortolotti/Rodriguez | 6-4,3-6,10-8 |
| Challenger Biella MD | 2021/05/18 14:05 | King/Lenz v Benchetrit/Clarke | 6-7,6-4,10-7 |
| Challenger Biella MD | 2021/05/20 13:30 | Fratangelo/Krueger v Drzewiecki/Martos Gornes | 2-6,4-6 |
| Challenger Biella MD | 2021/05/19 14:45 | Cerretani/Cornea v Drzewiecki/Martos Gornes | 6-3,3-6,4-10 |
| Challenger Biella MD | 2021/05/18 13:30 | Mena/Popko v Drzewiecki/Martos Gornes | 3-6,6-4,4-10 |