Stadium: Court 3 Round: 14 Ground: Hardcourt outdoor
| Challenger Palmas del Mar | 2023/06/14 17:15 | Evan Zhu v Beibit Zhukayev | 6-4,5-7,2-6 |
| Challenger Palmas del Mar | 2023/06/13 17:30 | Evan Zhu v Viktor Durasovic | 7-6,6-4 |
| Challenger Palmas del Mar | 2023/06/12 17:40 | Evan Zhu v Alex Rybakov | 7-6,4-6,6-3 |
| Challenger Palmas del Mar | 2023/06/11 15:00 | Evan Zhu v Tristan McCormick | 4-6,6-3,7-5 |
| Challenger Tyler | 2023/06/05 16:30 | Peter Gojowczyk v Evan Zhu | 6-3,7-6 |
| Challenger Little Rock | 2023/05/31 16:00 | Evan Zhu v Mohamed Aziz Dougaz | 6-3,3-6,1-6 |
| Challenger Little Rock | 2023/05/29 20:00 | Evan Zhu v Tristan Boyer | 6-4,6-7,7-6 |
| ITF M25 Xalapa | 2023/05/20 23:15 | Ernesto Escobedo v Evan Zhu | 6-3,6-3 |
| 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 Seoul | 2023/04/26 02:00 | Max Purcell v Ji Sung Nam | 6-3,6-4 |
| Challenger Seoul | 2023/04/24 02:00 | Ji Sung Nam v Shinji Hazawa | 6-2,6-4 |
| Challenger Seoul | 2023/04/23 02:00 | Hiroki Moriya v Ji Sung Nam | 2-6,2-6 |