stadio: Court 13 Round: 62 Ground: Clay
| ITF M25 Gandia | 2021/07/19 10:00 | Emilien Voisin v Mario Mansilla Diez | 5-7,1-6 |
| ITF M25 Bakio | 2021/06/27 16:00 | Gabriel Diaz Freire v Mario Mansilla Diez | 6-4,3-6,10-6 |
| UTR Pro Tennis Series Barcellona | 2021/06/26 09:30 | Rishab Agarwal v Mario Mansilla Diez | 6-2,5-4 |
| UTR Pro Tennis Series Barcellona | 2021/06/25 08:00 | Ervin H Eminefendic v Mario Mansilla Diez | 4-6,6-2,2-6 |
| UTR Pro Tennis Series Barcellona | 2021/06/23 08:00 | Constant De La Bassetiere v Mario Mansilla Diez | 6-1,5-1 |
| UTR Pro Tennis Series Barcellona | 2021/06/22 09:30 | Marcelo Zormann v Mario Mansilla Diez | 7-5,6-3 |
| UTR Pro Tennis Series Barcellona | 2021/06/21 08:00 | Mario Mansilla Diez v Alvaro Bueno Gil | 6-2,4-6,5-3 |
| ITF M15 Marbella | 2021/05/25 09:00 | Max Alcala Gurri v Mario Mansilla Diez | 6-2,6-4 |
| ITF M25 Gandia | 2021/07/18 09:00 | Rayane Oumaouche v Edouard Villoslada | 7-5,3-6,11-9 |
| UTR Pro Tennis Series Zadar | 2021/07/04 08:30 | Rayane Oumaouche v Vito Tonejc | 1-6,6-1,3-6 |
| UTR Pro Tennis Series Zadar | 2021/07/03 08:30 | Rayane Oumaouche v Ryan Goetz | 6-2,6-3 |
| UTR Pro Tennis Series Zadar | 2021/07/02 11:00 | Rayane Oumaouche v Elijah Poritzky | 6-0,5-3 |
| UTR Pro Tennis Series Zadar | 2021/06/30 12:30 | Rayane Oumaouche v Anatoliy Petrenko | 6-0,6-2 |
| UTR Pro Tennis Series Zadar | 2021/06/29 09:30 | Rayane Oumaouche v Yaraslav Shyla | 6-4,7-5 |
| UTR Pro Tennis Series Zadar | 2021/06/28 11:00 | Roko Horvat v Rayane Oumaouche | 6-3,5-0 |
| ITF M25 Faro | 2021/03/01 14:00 | Rayane Oumaouche v Hugo Voljacques | 5-7,6-0,7-10 |