Stadium: MTA 22 Round: 62 Ground: Clay
| ITF M15 Novi Sad | 2021/08/01 09:45 | Lazar Vojinovic v Keremedchiev, Ivailo | 4-6,6-3,6-10 |
| ITF M15 Novi Sad | 2021/07/25 09:30 | Roko Horvat v Lazar Vojinovic | 6-2,3-6,10-3 |
| ITF - M15 Doboj | 2021/07/11 08:15 | Cungu, Rrezart v Lazar Vojinovic | 6-3,6-3 |
| ITF M15 Sofia | 2021/07/04 10:30 | Macovei, Radu Florin v Lazar Vojinovic | 4-6,7-6,10-4 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/05/30 09:00 | Valentin Lapalu v Lazar Vojinovic | 6-4,7-5 |
| ITF - M15 Brcko | 2021/05/19 08:30 | Neuchrist, Maximilian v Lazar Vojinovic | 6-3,6-4 |
| ITF - M15 Brcko | 2021/05/18 09:30 | Drazen Petrovic v Lazar Vojinovic | 2-6,3-6 |
| ITF - M15 Brcko | 2021/05/17 15:30 | Lazar Vojinovic v Luka Petrovic | 6-3,6-4 |
| ITF - M15 Antalya | 2021/10/26 11:10 | Oscar Galimardanov v John Sperle | 6-3,7-5 |
| ITF - M15 Antalya | 2021/10/25 07:00 | John Sperle v Rizzuti, Giovanni | 7-5,6-3 |
| ITF - M15 Antalya | 2021/10/24 07:00 | Suleyman Deniz Gursoy v John Sperle | 3-6,3-6 |
| ITF - M15 Antalya | 2021/10/17 07:00 | Arthur Bonnaud v John Sperle | 2-6,6-3,10-5 |
| ITF - M15 Antalya | 2021/10/12 07:00 | Lukas H Lilleengen v John Sperle | 3-6,6-3,10-8 |
| ITF - M15 Antalya | 2021/10/11 09:00 | Naow, Amer v John Sperle | 1-6,4-6 |
| ITF M15 Huy | 2021/08/22 17:00 | John Sperle v Nicolas Bruna | 6-4,6-7,8-10 |
| ITF M25 Koksijde | 2021/08/19 08:00 | John Sperle v Carr, Simon | 2-6,2-6 |