Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| Challenger Columbus | 2021/09/21 14:00 | Yunseong Chung v Nam, Ji Sung | 6-3,4-6,6-7 |
| ITF Korea F3 | 2018/06/24 05:00 | Yunseong Chung v Nam, Ji Sung | 6-1,6-3 |
| ITF Korea F2 | 2018/06/17 04:00 | Nam, Ji Sung v Yunseong Chung | 4-6,3-6 |
| Challenger - Gwangju | 2022/10/03 04:00 | Yunseong Chung v Seita Watanabe | 6-2,7-6 |
| ATP Seoul | 2022/09/27 10:00 | Soonwoo Kwon v Yunseong Chung | 7-6,6-7,6-1 |
| ATP Seoul | 2022/09/25 03:50 | Shintaro Mochizuki v Yunseong Chung | 5-7,4-6 |
| ATP Seoul | 2022/09/24 06:55 | Yunseong Chung v Dalibor Svrcina | 6-3,4-6,6-1 |
| Challenger Nonthaburi | 2022/08/30 08:15 | Yunseong Chung v Billy Harris | 3-6,6-4,4-6 |
| Challenger Nonthaburi | 2022/08/29 06:10 | Yunseong Chung v Timo Legout | 7-6,6-2 |
| Nonthaburi 3, Thailand, Qualifying | 2022/08/28 07:25 | Yunseong Chung v Kelly, Dayne | 6-4,3-6,6-4 |
| Santo Domingo, Dominican Republic | 2022/08/15 19:40 | Nicolas Mejia v Yunseong Chung | 6-3,4-6,6-4 |
| Challenger - Gwangju | 2022/10/03 02:00 | Nam, Ji Sung v Shinji Hazawa | 6-1,7-6 |
| Challenger - Gwangju | 2022/10/02 01:00 | Nam, Ji Sung v Hoyoung Roh | 6-2,6-1 |
| ATP Seoul | 2022/09/27 03:00 | Steve Johnson v Nam, Ji Sung | 7-6,6-4 |
| Nur Sultan, Kazakhstan | 2022/07/21 05:40 | Benjamin Lock v Nam, Ji Sung | 6-2,6-1 |
| Nur Sultan, Kazakhstan | 2022/07/19 09:25 | Nam, Ji Sung v Timofey Skatov | 7-6,4-6,7-5 |
| Nur Sultan, Kazakhstan | 2022/07/18 11:50 | Nam, Ji Sung v Saba Purtseladze | 3-6,7-5,6-0 |
| Nur Sultan, Kazakhstan | 2022/07/17 08:05 | Nam, Ji Sung v Alexander Zgirovsky | 6-1,6-1 |
| Harmon, Singles Main, M-ITF-GUM-02A | 2022/06/11 00:00 | Sho Shimabukuro v Nam, Ji Sung | 6-1,6-7,6-3 |