Stadium: Court 3 Round: 19 Ground: Clay
| Challenger Zadar | 2021/03/21 13:35 | Nikolas Sanchez Izquierdo v Flavio Cobolli | 6-2,7-6 |
| ITF M15 La Nucia | 2021/03/14 11:00 | Emilio Nava v Nikolas Sanchez Izquierdo | 7-6,7-5 |
| ITF M15 La Nucia | 2021/03/13 10:00 | Nikolas Sanchez Izquierdo v Pablo Llamas Ruiz | 6-4,6-1 |
| ITF M15 La Nucia | 2021/03/12 09:25 | Georgii Kravchenko v Nikolas Sanchez Izquierdo | 4-6,1-6 |
| ITF M15 La Nucia | 2021/03/11 13:00 | Nathan Seateun v Nikolas Sanchez Izquierdo | 2-6,1-6 |
| ITF M15 La Nucia | 2021/03/10 13:15 | Giovanni Mpetshi Perricard v Nikolas Sanchez Izquierdo | 4-6,6-4,3-6 |
| Challenger Gran Canaria | 2021/03/03 13:00 | Alessandro Giannessi v Nikolas Sanchez Izquierdo | 7-6,7-5 |
| Challenger Gran Canaria | 2021/03/01 15:30 | Nikolas Sanchez Izquierdo v Andrea Pellegrino | 5-7,7-5,6-3 |
| Challenger Zadar | 2021/03/21 11:05 | Duje Kekez v Skander Mansouri | 6-7,4-6 |
| Challenger St. Petersburg | 2021/03/01 08:30 | Artem Dubrivnyy v Skander Mansouri | 4-6,7-6,6-0 |
| Challenger St. Petersburg | 2021/02/28 09:10 | Daniil Glinka v Skander Mansouri | 6-3,6-7,5-7 |
| ITF M15 Monastir | 2021/02/17 10:00 | Skander Mansouri v Giovanni Mpetshi Perricard | 6-3,6-3 |
| ITF M15 Monastir | 2021/02/12 08:25 | Skander Mansouri v Alexander Erler | 3-6,1-6 |
| ITF M15 Monastir | 2021/02/11 10:20 | Skander Mansouri v Naoki Nakagawa | 7-6,7-5 |
| ITF M15 Monastir | 2021/02/10 08:30 | Skander Mansouri v Antonio Massara | 6-7,6-4,6-4 |
| ITF M15 Monastir | 2021/02/08 09:30 | Skander Mansouri v Arthur Bouquier | 6-3,6-2 |