Stadium: Center Court Round: 14 Ground: Hardcourt outdoor
| ATP Seoul | 2022/09/27 03:00 | Steve Johnson v Ji Sung Nam | 7-6,6-4 |
| Challenger Nur-Sultan | 2022/07/21 05:40 | Benjamin Lock v Ji Sung Nam | 6-2,6-1 |
| Challenger Nur-Sultan | 2022/07/19 09:25 | Ji Sung Nam v Timofey Skatov | 7-6,4-6,7-5 |
| Challenger Nur-Sultan | 2022/07/18 11:50 | Ji Sung Nam v Saba Purtseladze | 3-6,7-5,6-0 |
| Challenger Nur-Sultan | 2022/07/17 08:05 | Ji Sung Nam v Alexander Zgirovsky | 6-1,6-1 |
| ITF M25 Harmon | 2022/06/11 00:00 | Sho Shimabukuro v Ji Sung Nam | 6-1,6-7,6-3 |
| ITF M25 Harmon | 2022/06/10 00:00 | Ko Suzuki v Ji Sung Nam | 3-6,4-6 |
| ITF M25 Harmon | 2022/06/09 01:50 | Toshihide Matsui v Ji Sung Nam | 4-6,3-6 |