Stadium: TK PALILULA C2 Round: 62 Ground: Clay
| ITF M25 Belgrade | 2021/06/27 07:00 | Aleksandar Tomas v Petar Pjevcevic | 3-6,1-6 |
| ITF M15 Skopje | 2021/06/07 11:30 | Petar Pjevcevic v Hugo Pontico | 4-6,4-6 |
| ITF M15 Skopje | 2021/06/06 12:00 | Aleksa Bucan v Petar Pjevcevic | 4-6,3-6 |
| ITF M15 Sarajevo | 2021/05/30 10:30 | Nikolas Lahky v Petar Pjevcevic | 6-3,7-5 |
| ITF M15 Brcko | 2021/05/16 09:30 | Dusan Obradovic v Petar Pjevcevic | 6-4,6-0 |
| Eastern European Championship | 2020/12/29 12:30 | Luka Pavlovic v Petar Pjevcevic | 6-4,7-5 |
| Eastern European Championship | 2020/12/28 14:15 | Duje Kekez v Petar Pjevcevic | 7-6,6-2 |
| Eastern European Championship | 2020/12/27 12:30 | Marat Deviatiarov v Petar Pjevcevic | 6-3,7-5 |
| ITF M25 Belgrade | 2021/06/27 07:00 | Maxim Krapivin v Mirko Martinez | 0-6,5-7 |
| ITF M25 Klosters | 2021/06/24 10:15 | Francesco Forti v Mirko Martinez | 6-3,6-4 |
| ITF M25 Klosters | 2021/06/22 06:55 | Mirko Martinez v Mika Brunold | 6-2,7-5 |
| ITF M15 Genova | 2021/06/15 08:55 | Mirko Martinez v Leopold Zima | 5-7,4-6 |
| ITF M15 Genova | 2021/06/14 07:00 | Wishaya Trongcharoenchaikul v Mirko Martinez | 4-6,3-6 |
| ITF M15 Sarajevo | 2021/06/02 11:25 | Gergely Madarasz v Mirko Martinez | 6-2,7-6 |
| ITF M15 Bucharest | 2021/05/26 07:00 | Mirko Martinez v Juan Ignacio Galarza | 1-6,7-5,4-6 |
| ITF M15 Bucharest | 2021/05/25 12:30 | Ioan Alexandru Chirita v Mirko Martinez | 6-7,0-6 |