| ITF Korea F3 | 2018/06/18 01:00 | Cheng-Yu Yu v Chan-Yeong Oh | 6-4,6-2 |
| ITF Korea F2 | 2018/06/14 02:30 | Cheng-Yu Yu v Jae Hwan Kim | 1-6,5-7 |
| ITF Singapore F3 | 2018/05/28 05:00 | Cheng-Yu Yu v Jacob Grills | 7-6,3-6,3-6 |
| ITF Singapore F2 | 2018/05/22 03:35 | Blake Ellis v Cheng-Yu Yu | 6-3,6-4 |
| ITF Vietnam F3 | 2018/05/18 03:00 | Cheng-Yu Yu v Pruchya Isarow | 6-3,3-6,5-7 |
| ITF Vietnam F3 | 2018/05/17 03:00 | Cheng-Yu Yu v Alexios Halebian | 6-4,6-2 |
| ITF Vietnam F3 | 2018/05/16 03:00 | Cheng-Yu Yu v Gengo Kikuchi | 6-3,6-1 |
| ITF Vietnam F3 | 2018/05/15 04:35 | Cheng-Yu Yu v Alexander Crnokrak | 6-2,6-1 |
| ITF Korea F3 | 2018/06/19 07:10 | Soichiro Moritani v Takuto Niki | 0-6,0-6 |
| ITF Korea F2 | 2018/06/14 03:20 | Ji Hoon Son v Takuto Niki | 7-6,7-5 |
| ITF Korea F2 | 2018/06/13 04:55 | Takuto Niki v Min-Kyu Song | 3-6,7-5,6-3 |
| ITF Korea F1 | 2018/06/09 02:35 | Takuto Niki v Jeamoon Lee | 3-6,6-4,4-6 |
| ITF Korea F1 | 2018/06/08 03:30 | Takuto Niki v Hong Chung | 6-1,6-0 |
| ITF Korea F1 | 2018/06/07 04:25 | Takuto Niki v Sang-Woo Noh | 6-3,6-2 |
| ITF Korea F1 | 2018/06/06 01:00 | Takuto Niki v Sang Yeop Kim | 6-0,6-0 |
| ITF Singapore F3 | 2018/05/29 04:05 | Takuto Niki v Congsup Congcar | 5-7,1-6 |