Stadium: C4 Citta'DellÁquila Round: 25 Ground: Clay
| ITF M25 Velenje | 2021/07/08 08:00 | Prechtel, Sebastian v Gonzalo Lama | 4-6,1-6 |
| ITF M25 Velenje | 2021/07/07 10:45 | Prechtel, Sebastian v Malesevic, Nemanja | 6-3,6-3 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/02 09:00 | Kekez, Duje v Prechtel, Sebastian | 6-1,6-1 |
| ITF M25 Kiseljak | 2021/05/27 12:00 | Zsombor Piros v Prechtel, Sebastian | 6-3,6-4 |
| ITF M25 Kiseljak | 2021/05/25 13:05 | Prechtel, Sebastian v Kekez, Duje | 3-6,6-3,6-4 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/05/20 08:00 | Zsombor Piros v Prechtel, Sebastian | 6-1,6-1 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/05/19 10:15 | Prechtel, Sebastian v Cuenin, Sean | 6-3,7-5 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/05/18 08:00 | Prechtel, Sebastian v Nikola Basic | 6-2,6-1 |
| ITF M15 L'Aquila | 2021/07/13 10:10 | Louroi Martinez v Procopio, Alessandro | 6-2,2-6,7-10 |
| ITF M15 L'Aquila | 2021/07/12 10:30 | Luigi Castelletti v Procopio, Alessandro | 6-1,2-6,8-10 |
| ITF M15 L'Aquila | 2021/07/11 11:00 | Biagio Gramaticopolo v Procopio, Alessandro | 4-6,2-6 |
| ITF M15 Sofia | 2021/07/04 07:30 | Franco Roncadelli v Procopio, Alessandro | 6-2,6-3 |
| ITF M25 Wroclaw | 2021/06/28 11:00 | Procopio, Alessandro v Illya Beloborodko | 2-6,4-6 |
| ITF M25 Wroclaw | 2021/06/27 15:30 | Procopio, Alessandro v Caspar Schuetze | 6-3,3-6,10-5 |
| ITF - M15 Opatija | 2021/03/21 08:00 | Peter Bertran v Procopio, Alessandro | 6-3,6-1 |
| ITF - M15 Rovinj | 2021/03/14 08:30 | Procopio, Alessandro v Dambrosi, Giacomo | 1-6,2-6 |