Stadium: Central Round: 25
| Challenger - Prague | 2021/08/24 10:25 | Facundo Diaz Acosta v Donati, Matteo | 6-1,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/20 10:55 | Prechtel, Sebastian v Donati, Matteo | 3-6,6-4,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/19 12:55 | Donati, Matteo v Franco Ribero | 6-1,6-1 |
| ITF M15 Warmbad-Villach | 2021/08/17 13:25 | Donati, Matteo v Rohrer, Niklas | 6-3,6-3 |
| San Marino, San Marino | 2021/08/08 09:45 | Alexander Shevchenko v Donati, Matteo | 6-3,3-6,7-5 |
| Iasi, Romania | 2021/07/14 11:05 | Felipe Meligeni Rodrigues Alves v Donati, Matteo | 6-3,6-3 |
| Iasi, Romania | 2021/07/12 09:55 | Stefan Palosi v Donati, Matteo | 4-6,4-6 |
| ITF M25 Wroclaw | 2021/06/27 14:00 | Donati, Matteo v Dominik Kellovsky | 6-2,6-7,6-10 |
| ITF M15 Platja D'Aro | 2021/10/08 14:00 | Toledo Bague, Pol v Carlos Sanchez Jover | 6-3,6-3 |
| ITF M15 Platja D'Aro | 2021/10/07 11:15 | Lorenzo Joaquin Rodriguez v Carlos Sanchez Jover | 3-6,2-6 |
| ITF M15 Platja D'Aro | 2021/10/06 10:00 | David Jorda Sanchis v Carlos Sanchez Jover | 5-7,4-6 |
| Challenger Murcia | 2021/09/27 09:00 | Alex Rybakov v Carlos Sanchez Jover | 6-3,6-1 |
| Challenger Murcia | 2021/09/26 09:00 | Mariano Kestelboim v Carlos Sanchez Jover | 3-6,6-2,6-7 |
| ITF M25 Madrid | 2021/09/16 07:55 | Giacalone, Omar v Carlos Sanchez Jover | 6-3,6-4 |
| ITF M25 Madrid | 2021/09/15 07:00 | Carlos Sanchez Jover v Corentin Denolly | 7-5,6-4 |
| Challenger Seville | 2021/09/06 09:00 | Benjamin Winter Lopez v Carlos Sanchez Jover | 6-3,6-3 |