Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| Challenger Kobe | 2022/11/14 06:00 | Filip Cristian Jianu v John Millman | 3-6,6-3,4-6 |
| Challenger Matsuyama | 2022/11/08 01:00 | Shintaro Mochizuki v Filip Cristian Jianu | 6-3,6-4 |
| Challenger Yokohama | 2022/11/03 02:00 | Filip Cristian Jianu v Nino Serdarusic | 4-6,6-4,5-7 |
| Challenger Yokohama | 2022/11/01 07:05 | Hiroki Moriya v Filip Cristian Jianu | 6-7,6-0,4-6 |
| Challenger Brest | 2022/10/23 08:00 | Filip Cristian Jianu v Antoine Ghibaudo | 4-6,4-6 |
| ATP Stockholm | 2022/10/15 12:55 | Filip Cristian Jianu v Alexander Shevchenko | 3-6,3-6 |
| ATP Gijon | 2022/10/08 12:00 | Carlos Taberner v Filip Cristian Jianu | 7-5,6-7,7-6 |
| Challenger Alicante | 2022/10/02 10:50 | Filip Cristian Jianu v Inigo C Huegun | 6-4,4-6,6-4 |
| Challenger Yokkaichi | 2022/11/21 01:00 | Rimpei Kawakami v Duckhee Lee | 6-7,3-6 |
| Challenger Kobe | 2022/11/13 05:30 | Yunseong Chung v Duckhee Lee | 6-2,6-0 |
| Challenger Busan | 2022/10/16 03:05 | Mukund Sasikumar v Duckhee Lee | 6-1,6-4 |
| Challenger Gwangju | 2022/10/04 03:00 | Duckhee Lee v Maximilian Neuchrist | 6-4,0-6,3-6 |
| Challenger Gwangju | 2022/10/03 03:20 | Keegan Smith v Duckhee Lee | 2-6,1-6 |
| Challenger Gwangju | 2022/10/02 03:55 | Se Hyuk Cho v Duckhee Lee | 1-6,0-6 |
| ATP Seoul | 2022/09/24 04:05 | Duckhee Lee v Tung-Lin Wu | 6-4,4-6,5-7 |
| ITF M15 - Daegu | 2022/09/03 01:45 | Duckhee Lee v Cheong-Eui Kim | 5-7,1-6 |