Stadium: Citta Di Forlì Round: 14 Ground: Clay
| Challenger Mallorca | 2021/09/02 19:25 | Frederico Ferreira Silva v Matteo Viola | 3-6,7-5,6-0 |
| Challenger Mallorca | 2021/09/01 14:00 | Matteo Viola v Liam Broady | 6-4,3-6,6-4 |
| Challenger Barletta | 2021/08/24 12:30 | Matteo Viola v Cristian Rodriguez | 2-6,5-7 |
| Challenger Verona | 2021/08/17 16:10 | Nerman Fatic v Matteo Viola | 6-0,6-1 |
| Challenger Segovia | 2021/07/28 10:00 | Matteo Viola v Benjamin Bonzi | 1-6,2-6 |
| Challenger Segovia | 2021/07/27 08:00 | Mirza Basic v Matteo Viola | 4-6,1-6 |
| Challenger Pozoblanco | 2021/07/22 17:20 | Matteo Viola v Emilio Nava | 5-7,6-4,3-6 |
| Challenger Pozoblanco | 2021/07/20 17:10 | Matteo Viola v Thomaz Bellucci | 6-1,6-3 |
| ITF M25 Plaisir | 2021/09/14 09:50 | Nicolas Alvarez Varona v Robin Bertrand | 5-7,3-6 |
| Challenger Mallorca | 2021/09/01 14:00 | Nicolas Alvarez Varona v Tomas Barrios Vera | 4-6,6-7 |
| ITF M25 Santander | 2021/08/29 09:30 | Nicolas Alvarez Varona v Alex M Pujolras | 7-6,2-6,6-2 |
| ITF M25 Santander | 2021/08/28 10:55 | Juan Bautista Torres v Nicolas Alvarez Varona | 3-6,3-6 |
| ITF M25 Santander | 2021/08/27 14:30 | Rio Noguchi v Nicolas Alvarez Varona | 1-6,4-6 |
| ITF M25 Santander | 2021/08/26 08:55 | Louis Dussin v Nicolas Alvarez Varona | 2-6,5-7 |
| ITF M25 Santander | 2021/08/25 10:00 | Pol Toledo Bague v Nicolas Alvarez Varona | 3-6,4-6 |
| ITF M25 Prostejov | 2021/08/18 10:05 | Nicolas Alvarez Varona v Dalibor Svrcina | 5-7,2-6 |