Stadium: Eden 1 Round: 62 Ground: Clay
| Adriatic Tennis Series | 2020/06/16 10:00 | Petrovic, Danilo v Zmak, Deni | 6-2,6-4 |
| Adriatic Tennis Series | 2020/06/15 09:30 | Marino Jakic v Zmak, Deni | 2-6,4-5 |
| ITF - M15 Porec | 2020/03/11 09:00 | Juan Pablo Paz v Zmak, Deni | 6-2,3-6,7-6 |
| ITF - M15 Porec | 2020/03/10 09:00 | Oleksandr Ovcharenko v Zmak, Deni | 7-6,2-6,10-12 |
| ITF - M15 Porec | 2020/03/09 12:25 | Mrsic, Luka v Zmak, Deni | 1-6,2-6 |
| ITF - M15 Porec | 2020/03/08 14:20 | Zmak, Deni v Domagoj Biljesko | 6-2,6-2 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2019/08/08 10:35 | Zmak, Deni v Vit Kopriva | 4-6,3-6 |
| Vogau, Singles Qualifying M-ITF-AUT-04A | 2019/08/07 12:15 | Zmak, Deni v Deviatiarov, Marat | 6-4,7-5 |
| ITF - M15 Porec | 2021/03/07 13:00 | Jan Kupcic v Ragazzi, Alessandro | 6-4,6-0 |
| ITF - M15 Antalya | 2021/01/13 09:30 | Cengiz, Baran v Ragazzi, Alessandro | 6-1,4-6,6-2 |
| ITF - M15 Antalya | 2021/01/12 07:00 | Ragazzi, Alessandro v Leopold Zima | 6-2,6-2 |
| ITF - M15 Antalya | 2021/01/11 07:00 | Jorge Martinez Martinez v Ragazzi, Alessandro | 6-4,1-6,12-14 |
| ITF - M15 Antalya | 2021/01/10 06:00 | Boyer, Toby D v Ragazzi, Alessandro | 1-6,5-7 |
| ITF - M15 Antalya | 2021/01/06 07:30 | Giuseppe Tresca v Ragazzi, Alessandro | 4-6,6-3,10-2 |
| ITF - M15 Antalya | 2021/01/03 07:00 | Mikail Alimli v Ragazzi, Alessandro | 1-6,1-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/08/19 07:30 | Ragazzi, Alessandro v Lulli, Gregorio | 6-7,6-1,10-12 |