Stadium: Court 4 Round: 62 Ground: Clay
| ITF M15 Telde | 2023/04/10 09:00 | Mario Mansilla Diez v Vicente O Moratalla | 4-6,1-6 |
| ITF M25 Reus | 2023/04/04 08:00 | Diego A B Sanchez v Mario Mansilla Diez | 7-6,6-3 |
| ITF M25 Reus | 2023/04/03 08:00 | Darius Florin Pop v Mario Mansilla Diez | 4-6,3-6 |
| ITF M25 Reus | 2023/04/02 12:00 | Manuel Almeida v Mario Mansilla Diez | 0-6,4-6 |
| ITF M25 Vila Real de Santo Antonio | 2023/02/13 09:30 | Javier Molino v Mario Mansilla Diez | 5-7,7-6,10-7 |
| ITF M25 Vila Real de Santo Antonio | 2023/02/08 14:30 | Mario Mansilla Diez v Noah Gabriel | 6-2,6-7,4-6 |
| ITF M25 Vila Real de Santo Antonio | 2023/02/07 10:00 | Mario Mansilla Diez v Jan Jermar | 6-0,6-2 |
| ITF M15 Madrid | 2022/11/30 11:45 | Federico Bondioli v Mario Mansilla Diez | 6-1,6-3 |
| ITF M15 Valencia | 2023/11/12 09:00 | Artem Avdieiev v Saveliy Ivanov | 4-6,6-4,10-7 |
| ITF M15 Novi Sad | 2023/07/24 09:15 | Lorenzo Gagliardo v Artem Avdieiev | 6-2,4-6,10-4 |
| ITF M15 Novi Sad | 2023/07/23 07:00 | Artem Avdieiev v Aleksei Khomich | 6-2,6-4 |