Stadium: Court 17 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Daegu | 2019/06/05 05:00 | Young Seok Kim v Takuto Niki | 6-4,6-3 |
| ITF M15 Singapore | 2019/05/29 02:00 | Jatin Dahiya v Takuto Niki | 1-6,4-6 |
| ITF M25 Luan | 2019/05/17 06:30 | Wishaya Trongcharoenchaikul v Takuto Niki | 7-6,4-6,7-6 |
| ITF M25 Luan | 2019/05/16 03:30 | Kento Takeuchi v Takuto Niki | 4-6,7-6,1-6 |
| ITF M25 Luan | 2019/05/15 02:00 | Cheng-Yu Yu v Takuto Niki | 4-6,6-3,3-6 |
| ITF M25 Wuhan | 2019/05/09 02:00 | Takuto Niki v Fajing Sun | 6-7,3-6 |
| ITF M25 Wuhan | 2019/05/08 02:00 | Cheng-Yu Yu v Takuto Niki | 4-6,7-6,3-6 |
| ITF M25 Matsuyama | 2019/04/14 04:15 | Takuto Niki v Shuichi Sekiguchi | 4-6,4-6 |
| ITF Korea F6 | 2018/08/28 02:00 | Yeongseok Jeong v Young-Hoon Jeong | 7-5,7-6 |
| Challenger Gwangju Qual | 2018/08/11 04:45 | Vasko Mladenov v Young-Hoon Jeong | 6-0,6-2 |
| ITF China F10 Qual | 2018/07/09 04:05 | Young-Hoon Jeong v Hao Wu | 3-6,1-6 |
| ITF China F10 Qual | 2018/07/08 02:00 | Young-Hoon Jeong v David Barclay | 6-1,6-3 |
| ITF China F9 | 2018/07/05 03:00 | Hao Wu v Young-Hoon Jeong | 6-7,6-0,6-2 |
| ITF China F9 | 2018/07/03 09:45 | Bang Shuo Yin v Young-Hoon Jeong | 0-6,2-6 |
| ITF Korea F3 Qual | 2018/06/18 01:00 | Young-Hoon Jeong v Geun Jun Kim | 4-6,4-6 |
| ITF Korea F3 Qual | 2018/06/17 03:00 | Young-Hoon Jeong v Jae Won Yun | 6-2,6-2 |