Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Wuhan | 2019/05/08 02:00 | Cheng-Yu Yu v Takuto Niki | 4-6,7-6,3-6 |
| ITF Korea F3 | 2018/06/20 03:15 | Cheng-Yu Yu v Takuto Niki | 4-6,3-6 |
| ITF M25 Wuhan | 2019/05/08 02:00 | Cheng-Yu Yu v Takuto Niki | 4-6,7-6,3-6 |
| ITF M25 Wuhan | 2019/05/07 03:15 | Cheng-Yu Yu v Kousuke Ogura | 6-4,6-3 |
| ITF M25 Wuhan | 2019/05/06 07:55 | Cheng-Yu Yu v Pak Long Yeung | 6-4,6-2 |
| Challenger Taipei | 2019/04/08 13:05 | Tung-Lin Wu v Cheng-Yu Yu | 6-4,6-3 |
| ITF M15 Mornington | 2019/03/26 02:40 | Cheng-Yu Yu v Dusty H. Boyer | 4-6,7-6,6-7 |
| ITF M15 Mornington | 2019/03/20 03:45 | Cheng-Yu Yu v Luca Castelnuovo | 6-3,3-6,4-6 |
| ITF M15 Nishi-Tokyo | 2019/03/11 02:00 | Masaya Kobayashi v Cheng-Yu Yu | 6-2,6-2 |
| ITF M15 Nishi-Tama | 2019/03/06 05:05 | Wishaya Trongcharoenchaikul v Cheng-Yu Yu | 6-4,7-6 |
| 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 M25 Matsuyama | 2019/04/13 03:00 | Takuto Niki v Wishaya Trongcharoenchaikul | 7-5,6-3 |
| ITF M25 Matsuyama | 2019/04/12 04:00 | Gage Brymer v Takuto Niki | 4-6,5-7 |
| ITF M25 Matsuyama | 2019/04/12 01:00 | Takuto Niki v Yuki Mochizuki | 6-2,6-3 |
| ITF M25 Matsuyama | 2019/04/10 03:30 | Takuto Niki v Sho Katayama | 6-2,6-3 |
| ITF M15 Kashiwa | 2019/04/04 02:35 | Yunosuke Tanaka v Takuto Niki | 7-6,1-6,6-1 |