Stadium: Court 4 Round: 44 Ground: Clay
| ITF M15 Ulcinj | 2021/08/30 07:30 | Pietro Marino v Aleksandar Mihailovic | 5-7,6-4,10-7 |
| ITF M15 Ulcinj | 2021/08/29 11:30 | Aleksandar Mihailovic v Luca Moro Almeida | 6-0,6-0 |
| ITF M15 Novi Sad | 2021/08/04 10:00 | Juan Pablo Paz v Aleksandar Mihailovic | 6-0,6-1 |
| ITF - M15 Doboj | 2021/07/14 08:30 | Felix Gill v Aleksandar Mihailovic | 6-1,6-4 |
| ITF M25 Belgrade | 2021/06/27 12:00 | Nicolas Bruna v Aleksandar Mihailovic | 7-6,6-0 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/02 14:05 | Petrovic, Luka v Aleksandar Mihailovic | 6-4,6-0 |
| ITF M25 Kiseljak | 2021/05/25 15:25 | Aleksandar Mihailovic v Forti, Francesco | 1-6,1-6 |
| ITF - M15 Brcko | 2021/05/16 07:00 | Valentin Lapalu v Aleksandar Mihailovic | 6-3,6-4 |
| ITF M15 Ulcinj | 2021/09/02 11:10 | Alejo Lorenzo Lingua Lavallen v Matthew Dellavedova | 6-2,6-2 |
| ITF M15 Ulcinj | 2021/09/01 11:25 | Matthew Dellavedova v Rajic, Dusan | 6-2,6-3 |
| ITF M15 Ulcinj | 2021/08/30 11:30 | Ioannis Xilas v Matthew Dellavedova | 6-1,6-1 |
| ITF M15 Ulcinj | 2021/08/30 07:30 | Milo Gazivoda v Matthew Dellavedova | 0-6,3-6 |
| ITF - M15 Monastir | 2021/08/16 08:30 | Matthew Dellavedova v Adil Kalyanpur | 4-6,6-2,6-10 |
| ITF - M15 Monastir | 2021/08/15 11:00 | Matthew Dellavedova v Ren Nakamura | 6-1,6-4 |
| ITF - M15 Monastir | 2021/08/08 09:30 | Beale, Jeremy v Matthew Dellavedova | 3-6,6-4,10-7 |
| ITF - M15 Monastir | 2021/08/04 17:30 | Matthew Dellavedova v Kawakami, Rimpei | 6-0,3-6,3-6 |