Stadium: Center Court Round: 25 Ground: Grass
| ITF M15 Gaiba | 2021/06/07 11:40 | Andrea Guerrieri v Gabriele Moghini | 7-6,6-4 |
| ITF M15 Monastir | 2021/05/02 09:00 | Andrea Guerrieri v Alessandro Pecci | 6-3,6-7,6-10 |
| ITF M15 Monastir | 2021/04/25 09:00 | Andrea Guerrieri v Lorenzo Bresciani | 4-6,6-4,7-10 |
| ITF M15 Monastir | 2021/04/19 13:00 | Andrea Guerrieri v Harry Wendelken | 6-3,1-6,4-10 |
| ITF M15 Monastir | 2021/04/18 14:00 | Andrea Guerrieri v Bruno P Navarro | 4-6,7-6,10-6 |
| ITF M15 Monastir | 2021/04/14 11:00 | Benjamin Pietri v Andrea Guerrieri | 4-6,6-2,7-5 |
| ITF M15 Monastir | 2021/04/12 12:30 | Andrea Guerrieri v Fabio Coelho | 6-3,6-2 |
| ITF M15 Monastir | 2021/04/12 08:00 | Andrea Guerrieri v Federico Lucini | 6-1,6-3 |
| ITF M15 Antalya | 2021/06/06 07:30 | Giovanni Fonio v Nicolas Moreno De Alboran | 5-7,4-6 |
| ITF M15 Antalya | 2021/06/05 07:20 | Gonzalo Lama v Giovanni Fonio | 6-7,5-7 |
| ITF M15 Antalya | 2021/06/04 10:05 | Giovanni Fonio v Stuart Parker | 6-3,2-6,6-1 |
| ITF M15 Antalya | 2021/06/01 09:30 | Giovanni Fonio v Luca Castagnola | 6-1,1-6,7-6 |
| ITF M15 Antalya | 2021/05/27 10:15 | Giovanni Fonio v Matteo Gigante | 1-6,3-6 |
| ITF M15 Antalya | 2021/05/26 07:30 | Giovanni Fonio v Nicolas Parizzia | 6-4,6-4 |
| Challenger Biella | 2021/05/16 09:00 | Tomas Martin Etcheverry v Giovanni Fonio | 6-4,6-4 |
| ITF M15 Opatija | 2021/03/28 07:55 | Giacomo Dambrosi v Giovanni Fonio | 2-6,3-6 |