Stadium: Voba Meebusch Court Round: 45 Ground: Clay
| ITF M15 Metzingen | 2023/07/26 12:30 | Aaron James Williams v Taym Alazmeh | 4-6,6-4,1-6 |
| ITF M15 Metzingen | 2023/07/24 12:00 | Adrian Oetzbach v Aaron James Williams | 6-7,6-2,7-10 |
| ITF M15 Metzingen | 2023/07/23 07:30 | Aaron James Williams v Noel Larwig | 7-5,6-2 |
| ITF M15 Uslar | 2023/07/17 13:00 | Aaron James Williams v Rostislav Galfinger | 6-7,2-6 |
| ITF M15 Uslar | 2023/07/17 08:00 | Karlo Cubelic v Aaron James Williams | 6-7,6-4,6-10 |
| ITF M25 Kassel | 2023/07/10 09:45 | Michael Agwi v Aaron James Williams | 5-7,6-4,10-8 |
| ITF M25 The Hague | 2023/07/02 08:00 | Jakub Wojcik v Aaron James Williams | 7-6,5-7,11-9 |
| ITF M15 Kamen | 2023/06/26 08:00 | Lambert Ruland v Aaron James Williams | 6-4,6-2 |
| Challenger Porto | 2023/07/30 13:05 | Ji Sung Nam v Jaime Faria | 4-6,4-6 |
| Challenger Pozoblanco | 2023/07/16 17:00 | Ji Sung Nam v Fajing Sun | 6-7,1-6 |
| Challenger Bloomfield Hills | 2023/07/02 18:00 | 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 |