Stadium: Court 1 Round: 62 Ground: Clay
| ITF - M15 Pirot | 2023/09/06 07:30 | Petr Bar Biryukov v Dusan Obradovic | 6-7,4-6 |
| ITF - M15 Kuršumlijska Banja | 2023/08/30 11:35 | Petr Bar Biryukov v Nicolo Pozzani | 4-6,3-6 |
| ITF - M15 Belehrad | 2023/06/25 07:00 | Petr Bar Biryukov v Maxence Rivet | 6-4,3-6,5-10 |
| ITF - M15 Kuršumlijska Banja | 2023/06/19 08:55 | Petr Bar Biryukov v Louis Tessa | 2-6,2-6 |
| ITF - M15 Kuršumlijska Banja | 2023/06/18 11:00 | Petr Bar Biryukov v Darko Kolevski | 6-1,6-1 |
| ITF - M15 Kuršumlijska Banja | 2023/06/17 17:15 | Viktor Jovic v Petr Bar Biryukov | 3-6,7-5,6-4 |
| ITF - M15 Kuršumlijska Banja | 2023/06/17 12:00 | Petr Bar Biryukov v Rrezart Cungu | 7-6,7-6 |
| ITF - M15 Kuršumlijska Banja | 2023/06/13 15:40 | William Grant v Petr Bar Biryukov | 6-7,6-7 |
| ITF - M15 Satu Mare | 2023/09/10 07:00 | Simon Norrman v Alan Postay | 7-6,6-4 |