Stadium: Center Court (5) Round: 25 Ground: Clay
| ITF M25 Bourg-en-Bresse | 2021/07/01 10:20 | Damien Wenger v Nikolas Sanchez Izquierdo | 6-3,6-2 |
| ITF M25 Bourg-en-Bresse | 2021/06/30 13:30 | Eysseric, Jonathan v Nikolas Sanchez Izquierdo | 2-6,7-5,1-6 |
| Milan, Italy | 2021/06/20 12:55 | Nikolas Sanchez Izquierdo v Orlando Luz | 3-6,7-5,2-6 |
| Challenger - Aix en Provence | 2021/06/15 08:30 | Nikolas Sanchez Izquierdo v Manuel Guinard | 6-3,3-6,4-6 |
| Challenger - Aix en Provence | 2021/06/14 10:05 | Nikolas Sanchez Izquierdo v Michael Geerts | 6-7,6-4,6-2 |
| Challenger - Aix en Provence | 2021/06/13 11:15 | Nikolas Sanchez Izquierdo v Matos, Rafael | 6-2,6-2 |
| Lyon, France | 2021/06/06 09:30 | Esteve Lobato, Eduard v Nikolas Sanchez Izquierdo | 6-4,6-0 |
| Challenger - Oeiras | 2021/05/28 11:55 | Timofey Skatov v Nikolas Sanchez Izquierdo | 7-6,5-7,6-1 |
| ITF M15 Bergamo | 2021/06/21 15:00 | Rondoni, Pietro v Jaimee Floyd Angele | 2-6,6-7 |
| ITF M15 Genova | 2021/06/15 18:00 | Rondoni, Pietro v Mateus Alves | 6-2,3-6,4-6 |
| ITF M15 Gaiba | 2021/06/09 16:35 | Rondoni, Pietro v Giacalone, Omar | 4-6,6-2,4-6 |
| ITF - M15 Antalya | 2021/06/04 09:45 | Rondoni, Pietro v Gonzalo Lama | 4-6,4-6 |
| ITF - M15 Antalya | 2021/06/03 07:30 | Rondoni, Pietro v Daisuke Sumizawa | 6-3,6-2 |
| ITF - M15 Antalya | 2021/06/01 10:00 | Okala, Jules v Rondoni, Pietro | 6-7,4-6 |
| Challenger Biella | 2021/05/02 13:10 | Guido Andreozzi v Rondoni, Pietro | 6-2,6-2 |
| ITF M25 Meerbusch | 2021/04/14 12:15 | Milan Welte v Rondoni, Pietro | 6-3,4-6,6-4 |