Stadium: Court 1 Round: 54 Ground: Grass
| ITF M15 Monastir | 2021/05/23 08:00 | Ezequiel Simonit v Giovanni Agostinetto | 6-2,6-3 |
| ITF M15 Monastir | 2021/05/16 08:00 | Giovanni Agostinetto v Seita Watanabe | 3-6,3-6 |
| ITF M15 Monastir | 2021/05/09 08:00 | Giovanni Agostinetto v Riccardo Chessari | 6-7,0-6 |
| ITF M15 Monastir | 2021/04/04 13:00 | Giovanni Agostinetto v Fabio Coelho | 3-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/03/15 07:30 | Francesco Vilardo v Giovanni Agostinetto | 6-1,6-3 |
| ITF M15 Sharm El Sheikh | 2021/03/14 07:00 | Giovanni Agostinetto v Preston Connor | 6-0,6-3 |
| ITF M25 Trimbach | 2021/03/09 08:55 | Giovanni Agostinetto v Jan Sebesta | 4-6,2-6 |
| ITF M25 Trimbach | 2021/03/08 15:40 | Mats Hermans v Giovanni Agostinetto | 6-4,4-6,10-12 |
| ITF M15 Helsinki | 2021/06/03 07:00 | Yannik Steinegger v Bruno Kuzuhara | 2-6,6-2,3-6 |
| ITF M15 Helsinki | 2021/06/02 11:30 | Mikhail Minakov v Yannik Steinegger | 4-6,1-6 |
| ITF M15 Helsinki | 2021/06/01 08:50 | Yannik Steinegger v Alexander Chepik | 6-4,6-3 |
| ITF M15 Helsinki | 2021/05/31 10:00 | Yannik Steinegger v Peetu Pohjola | 6-2,6-3 |
| ITF M15 Kouvola | 2021/05/27 12:35 | Yannik Steinegger v Otto Virtanen | 0-6,7-5,3-6 |
| ITF M15 Kouvola | 2021/05/26 15:20 | Yan Sabanin v Yannik Steinegger | 2-6,2-6 |
| ITF M15 Kouvola | 2021/05/25 07:00 | Yannik Steinegger v Tommy Hellstrom | 6-1,6-0 |
| ITF M15 Troisdorf | 2021/05/11 08:00 | Tom Kocevar-Desman v Yannik Steinegger | 6-3,6-1 |