Stadium: Court 1 Round: 44 Ground: Clay
| ITF M15 Targu Jiu | 2023/08/15 09:55 | Lazar Vojinovic v Dumitru, Vlad Andrei | 6-7,4-6 |
| ITF M15 Targu Jiu | 2023/08/14 09:30 | Lazar Vojinovic v Rafael Grosu | 6-2,6-2 |
| ITF M15 Targu Jiu | 2023/08/13 12:00 | Lazar Vojinovic v Ivan Zaytsev | 6-2,6-1 |
| ITF M25 Osijek | 2023/08/09 08:00 | Luka Pavlovic v Lazar Vojinovic | 6-0,6-1 |
| ITF M15 Novi Sad | 2023/07/30 09:30 | Lazar Vojinovic v Bautista Vilicich | 7-5,3-6,6-10 |
| ITF M15 Belgrade | 2023/06/25 07:00 | Maxim Krapivin v Lazar Vojinovic | 6-4,3-6,10-8 |
| ITF - M15 Kursumlijska Banja | 2023/06/18 07:00 | Khomich, Aleksei v Lazar Vojinovic | 7-6,6-3 |
| ITF - M15 Kursumlijska Banja | 2023/06/12 14:45 | Pavel Verbin v Lazar Vojinovic | 6-4,6-2 |
| Pirot, Singles M-ITF-SRB-05A | 2023/09/03 11:30 | Shendrit Deari v Nazar Oliynykov | 3-6,6-3,8-10 |
| ITF M25 Osijek | 2023/08/07 12:15 | Nazar Oliynykov v Jaka Protic Zakelj | 1-6,5-7 |
| ITF M25 Osijek | 2023/08/06 10:00 | Peter Nad v Nazar Oliynykov | 2-6,6-1,5-10 |
| ITF M15 Novi Sad | 2023/08/01 11:35 | Sergei Pogosian v Nazar Oliynykov | 6-1,6-2 |
| ITF M15 Novi Sad | 2023/08/01 07:30 | Nazar Oliynykov v Andrejic, Marko | 7-5,6-1 |
| ITF M15 Novi Sad | 2023/07/25 09:35 | Pavel Verbin v Nazar Oliynykov | 6-1,6-3 |
| ITF M15 Novi Sad | 2023/07/24 11:05 | Nazar Oliynykov v Radomir Tomic | 7-5,6-2 |
| ITF M15 Novi Sad | 2023/07/23 13:00 | Paulovcak, Samuel v Nazar Oliynykov | 3-6,4-6 |