Stadium: Court 7 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2021/05/03 12:00 | Yuta Kawahashi v Pietro Pampanin | 6-4,6-4 |
| ITF M15 Monastir | 2021/05/02 12:00 | Yuta Kawahashi v Ammar Elamin | 6-3,6-3 |
| ITF M15 Monastir | 2021/05/01 08:30 | Yuta Kawahashi v Lucas Catarina | 3-6,1-6 |
| ITF M15 Monastir | 2021/04/30 11:55 | Yuta Kawahashi v Remy Bertola | 6-4,6-1 |
| ITF M15 Monastir | 2021/04/29 11:20 | Mariano Kestelboim v Yuta Kawahashi | 1-6,1-6 |
| ITF M15 Monastir | 2021/04/28 08:30 | Yuta Kawahashi v Guido Ivan Justo | 6-4,6-2 |
| ITF M15 Monastir | 2021/04/26 13:30 | Yuta Kawahashi v Marcello Serafini | 6-3,6-1 |
| ITF M15 Monastir | 2021/04/26 09:00 | Yuta Kawahashi v George Davies | 6-2,6-3 |
| ITF M15 Monastir | 2021/05/03 12:00 | Luca Castagnola v Mattia Frinzi | 2-6,6-7 |
| ITF M15 Monastir | 2021/05/02 12:00 | Theo Arribage v Mattia Frinzi | 6-7,1-6 |
| ITF M15 Opatija | 2021/03/23 10:20 | Aleksandre Bakshi v Mattia Frinzi | 6-2,6-3 |
| ITF M15 Opatija | 2021/03/22 13:15 | Stefan Loncar v Mattia Frinzi | 3-6,6-7 |
| ITF M15 Opatija | 2021/03/21 08:00 | Milan Radojkovic v Mattia Frinzi | 0-6,1-6 |
| ITF M15 Rovinj | 2021/03/14 08:30 | Josip Krstanovic v Mattia Frinzi | 6-2,7-6 |
| ITF M15 Porec | 2021/03/09 09:00 | Gergely Madarasz v Mattia Frinzi | 7-5,6-3 |
| ITF M15 Porec | 2021/03/07 11:00 | Roko Horvat v Mattia Frinzi | 1-6,1-6 |