Stadium: Court 9 Round: 45 Ground: Hardcourt outdoor
| Challenger Grodzisk Mazowiecki | 2023/08/13 15:10 | Ji Sung Nam v Mats Rosenkranz | 2-6,3-6 |
| Challenger Meerbusch | 2023/08/08 09:00 | Orlando Luz v Ji Sung Nam | 4-6,6-4,6-4 |
| Challenger Meerbusch | 2023/08/07 14:35 | Aaron James Williams v Ji Sung Nam | 4-6,7-6,1-6 |
| 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 |
| ITF M25 Hong Kong | 2023/08/30 02:00 | Jake Delaney v Fitriadi M Rifqi | 6-4,2-6,4-6 |
| ITF M25 Tainan | 2023/08/24 02:00 | Yamato Sueoka v Jake Delaney | 7-5,3-6,6-4 |
| ITF M15 Caloundra | 2023/08/05 01:00 | Isaac Becroft v Jake Delaney | 6-3,7-5 |
| ITF M15 Caloundra | 2023/08/04 02:40 | Moerani Bouzige v Jake Delaney | 3-6,3-6 |
| ITF M15 Caloundra | 2023/08/03 00:00 | Thomas Braithwaite v Jake Delaney | 6-7,6-7 |
| ITF M15 Caloundra | 2023/08/02 00:00 | Hayden Jones v Jake Delaney | 3-6,3-6 |
| ITF M15 Caloundra | 2023/07/28 00:00 | Ryuki Matsuda v Jake Delaney | 6-7,6-4,6-2 |
| ITF M15 Caloundra | 2023/07/27 00:00 | Anton Shepp v Jake Delaney | 6-1,3-6,5-7 |