stadio: Court Central Round: 14 Ground: Hardcourt outdoor
| Challenger Pozoblanco | 2023/07/16 17:00 | Ji Sung Nam v Fajing Sun | 6-7,1-6 |
| Challenger Bloomfield Hills | 2023/07/03 14:30 | Evan Zhu v Ji Sung Nam | 6-1,6-4 |
| Challenger Cali | 2023/06/18 19:15 | Frazier Rengifo v Ji Sung Nam | 6-4,6-2 |
| Challenger Palmas del Mar | 2023/06/11 17:15 | Ji Sung Nam v Gustavo Heide | 4-6,4-6 |
| Challenger Busan | 2023/05/09 02:00 | Ji Sung Nam v Gabriel Diallo | 3-6,3-6 |
| Challenger Gwangju | 2023/05/01 01:30 | Dominik Palan v Ji Sung Nam | 6-4,6-3 |
| Challenger Gwangju | 2023/04/30 01:30 | Ji Sung Nam v Ajeet Rai | 5-7,6-1,6-2 |
| Challenger Seul | 2023/04/26 02:00 | Max Purcell v Ji Sung Nam | 6-3,6-4 |
| 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 |
| ITF M25 Castelo Branco | 2023/07/20 16:30 | Jaime Faria v Adan Freire Da Silva | 6-2,6-3 |
| ITF M25 Castelo Branco | 2023/07/19 10:30 | Jaime Faria v Tiago Silva | 4-6,6-1,6-2 |
| ITF M25 Bakio | 2023/06/28 11:00 | Jaime Faria v Alejandro Garcia | 6-3,0-6,1-6 |
| ITF M25 Mungia | 2023/06/20 13:05 | Jaime Faria v Svyatoslav Gulin | 2-6,4-6 |