Stadium: Court 1 Round: 25 Ground: Grass
| ITF M15 Kouvola | 2021/05/29 07:00 | Naoki Tajima v Lorenzo Rottoli | 7-5,6-4 |
| ITF M15 Kouvola | 2021/05/28 08:35 | Lorenzo Rottoli v Otto Virtanen | 6-2,2-6,7-5 |
| ITF M15 Kouvola | 2021/05/27 07:00 | Lorenzo Rottoli v Eero Vasa | 6-3,6-1 |
| ITF M15 Kouvola | 2021/05/26 08:00 | Vladimir Ivanov v Lorenzo Rottoli | 2-6,4-6 |
| ITF M15 Kouvola | 2021/05/25 10:00 | Lorenzo Rottoli v Peetu Pohjola | 7-6,6-2 |
| ITF M15 Tbilisi | 2021/05/20 06:00 | Alessandro Bega v Lorenzo Rottoli | 6-1,6-0 |
| ITF M15 Tbilisi | 2021/05/18 12:25 | Lorenzo Rottoli v George Tsivadze | 7-6,6-4 |
| ITF M15 Sharm El Sheikh | 2021/04/06 09:40 | Daniel Cox v Lorenzo Rottoli | 7-5,6-3 |
| ITF M15 Gaiba | 2021/06/08 10:30 | Mattia Frinzi v Alessandro Ragazzi | 6-4,6-2 |
| ITF M15 Gaiba | 2021/06/07 14:50 | Mattia Frinzi v Filippo Carpi | 6-2,6-2 |
| ITF M15 Monastir | 2021/05/15 08:30 | Mohamed Aziz Dougaz v Mattia Frinzi | 7-5,6-4 |
| ITF M15 Monastir | 2021/05/14 10:00 | Mattia Frinzi v Antoine Bellier | 5-7,7-6,6-4 |
| ITF M15 Monastir | 2021/05/13 10:30 | Benjamin Lock v Mattia Frinzi | 6-7,4-6 |
| ITF M15 Monastir | 2021/05/12 11:55 | Dong Ju Kim v Mattia Frinzi | 3-6,1-6 |
| ITF M15 Monastir | 2021/05/10 13:30 | Guy Orly Iradukunda v Mattia Frinzi | 6-4,4-6,4-10 |
| ITF M15 Monastir | 2021/05/10 09:00 | Francesco Cano v Mattia Frinzi | 2-6,5-7 |