Stadium: Center Court Round: 19 Ground: Hardcourt outdoor
| Challenger Gwangju | 2022/10/02 01:00 | Ji Sung Nam v Hoyoung Roh | 6-2,6-1 |
| 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 Kashiwa | 2022/09/30 03:05 | Makoto Ochi v Shinji Hazawa | 7-5,6-1 |
| ITF M25 Kashiwa | 2022/09/29 01:55 | Issei Okamura v Shinji Hazawa | 1-6,4-6 |
| ITF M25 Kashiwa | 2022/09/27 01:00 | Kokoro Isomura v Shinji Hazawa | 5-7,4-6 |
| Challenger Nonthaburi Qual | 2022/09/04 07:30 | Shinji Hazawa v Naoki Nakagawa | 4-6,4-6 |
| Challenger Nonthaburi | 2022/08/21 07:40 | Shinji Hazawa v Yuta Shimizu | 2-6,4-6 |
| ITF M15 Kuching | 2022/08/03 01:00 | Kokoro Isomura v Shinji Hazawa | 2-6,6-3,6-1 |
| ITF M15 Kuala Lumpur | 2022/07/29 01:00 | Shinji Hazawa v Yuta Shimizu | 4-6,3-6 |
| ITF M15 Kuala Lumpur | 2022/07/28 01:00 | Shinji Hazawa v Takuya Kumasaka | 6-3,7-5 |