Stadium: Centre Court Round: 14 Ground: Clay
| ITF M25 Bielsko Biala | 2023/08/17 08:30 | Olaf Pieczkowski v Daniel Siniakov | 7-5,6-2 |
| ITF M25 Bielsko Biala | 2023/08/16 11:35 | Daniel Siniakov v Yshai Oliel | 6-3,2-6,7-5 |
| Challenger Liberec | 2023/07/30 12:35 | Alex M Pujolras v Daniel Siniakov | 1-6,6-3,6-1 |
| ITF M25 Telfs | 2023/07/21 12:00 | Peter Heller v Daniel Siniakov | 6-1,6-0 |
| ITF M25 Telfs | 2023/07/20 08:30 | Daniel Siniakov v Juan Bautista Otegui | 2-6,6-3,6-3 |
| ITF M25 Telfs | 2023/07/19 10:00 | Daniel Siniakov v Timofey Stepanov | 4-6,6-3,6-0 |
| ITF M25 Kassel | 2023/07/12 11:25 | Daniel Siniakov v Facundo Yunis | 4-6,1-6 |
| ITF M25 Kassel | 2023/07/11 09:30 | Daniel Siniakov v Taym Alazmeh | 6-3,7-6 |
| Challenger Porto | 2023/08/03 15:05 | Jaime Faria v Pierre-Hugues Herbert | 7-6,4-6,4-6 |
| Challenger Porto | 2023/08/01 10:00 | Hugo Grenier v Jaime Faria | 4-6,3-6 |
| Challenger Porto | 2023/07/31 10:00 | Aleksandr Braynin v Jaime Faria | 4-6,5-7 |
| Challenger Porto | 2023/07/30 13:05 | Ji Sung Nam v Jaime Faria | 4-6,4-6 |
| ITF M25 Porto | 2023/07/27 17:45 | Mario G Fernandez v Jaime Faria | 7-6,6-7,7-6 |
| ITF M25 Porto | 2023/07/26 12:45 | Jaime Faria v Lucas Poullain | 6-2,6-3 |
| ITF M25 Castelo Branco | 2023/07/22 11:30 | Fabrizio Andaloro v Jaime Faria | 6-4,6-1 |
| ITF M25 Castelo Branco | 2023/07/21 10:40 | Jaime Faria v Diego F Flores | 6-3,6-2 |