Stadium: Court 2 Round: 44 Ground: Clay
| ITF M15 Kursumlijska Banja | 2023/04/24 07:00 | Valentin Vanta v Nikola Kolyachev | 6-4,7-5 |
| ITF M15 Kursumlijska Banja | 2023/04/23 07:00 | Tarik Sehovic v Nikola Kolyachev | 2-6,0-6 |
| UTR Pro Beograd | 2023/04/22 06:00 | Nikola Kolyachev v Edison Ambarzumjan | 0-3 |
| UTR Pro Beograd | 2023/04/21 07:30 | Nikola Kolyachev v Strahinja Rakic | 7-6,4-6,3-6 |
| UTR Pro Beograd | 2023/04/20 06:00 | Nikola Kolyachev v Luka Pavlovic | 3-6,2-6 |
| UTR Pro Beograd | 2023/04/19 07:30 | Matija Samardzic v Nikola Kolyachev | 3-6,6-1,6-4 |
| UTR Pro Beograd | 2023/04/18 06:00 | Maxime Hamou v Nikola Kolyachev | 6-1,6-1 |
| ITF M15 Sozopol | 2022/10/16 10:00 | Adam Jurajda v Nikola Kolyachev | 7-6,6-3 |
| ITF M25 Kursumlijska Banja | 2023/06/05 10:25 | Mwendwa Mbithi v Piotr Czaczkowski | 6-3,6-3 |
| ITF M15 Rovinj | 2023/03/12 12:00 | Nik Mikovic v Piotr Czaczkowski | 6-1,6-0 |
| ITF M15 Porec | 2023/03/05 12:00 | Piotr Czaczkowski v Federico Marchetti | 5-7,1-6 |
| ITF M25 Nussloch | 2023/01/22 08:30 | Taym Alazmeh v Piotr Czaczkowski | 7-6,6-3 |
| ITF M15 Sozopol | 2022/10/18 09:20 | Piotr Czaczkowski v Petr Nesterov | 4-6,3-6 |
| ITF M15 Sozopol | 2022/10/17 07:00 | Daniel Siniakov v Piotr Czaczkowski | 6-2,4-6,6-10 |
| ITF M15 Sozopol | 2022/10/16 06:30 | Piotr Czaczkowski v Vlad Stoica | 6-3,3-6,11-9 |
| ITF M15 Sozopol | 2022/10/10 08:00 | Sergo Sikharulidze v Piotr Czaczkowski | 6-3,6-3 |