Stadium: Court 3 Round: 26
| ITF Singapore F3 | 2018/05/28 05:00 | Yu, Cheng-Yu v Grills, Jacob | 7-6,3-6,3-6 |
| ITF Singapore F2 | 2018/05/22 03:35 | Blake Ellis v Yu, Cheng-Yu | 6-3,6-4 |
| ITF Vietnam F3 | 2018/05/18 03:00 | Yu, Cheng-Yu v Isarow, Pruchya | 6-3,3-6,5-7 |
| ITF Vietnam F3 | 2018/05/17 03:00 | Yu, Cheng-Yu v Halebian, Alexios | 6-4,6-2 |
| ITF Vietnam F3 | 2018/05/16 03:00 | Yu, Cheng-Yu v Kikuchi, Gengo | 6-3,6-1 |
| ITF Vietnam F3 | 2018/05/15 04:35 | Yu, Cheng-Yu v Crnokrak, Alexander | 6-2,6-1 |
| Challenger Taipei Qual | 2018/04/08 03:00 | Yu, Cheng-Yu v Grills, Jacob | 6-4,5-7,3-6 |
| Challenger Taipei Qual | 2018/04/07 03:05 | Tsung-Hao Huang v Yu, Cheng-Yu | 5-7,1-6 |
| ITF Korea F2 | 2018/06/13 03:30 | Jae Hwan Kim v Noh, Sang-Woo | 6-2,6-3 |
| ITF Korea F2 | 2018/06/11 03:30 | Jae Hwan Kim v Park, Sung Jun | 6-1,6-2 |
| ITF Korea F2 | 2018/06/10 02:00 | Jae Hwan Kim v Shin, Seung-Hun | 6-2,6-2 |
| ITF Korea F1 | 2018/06/07 01:00 | Jae Hwan Kim v Jeamoon Lee | 6-4,2-6,4-6 |
| ITF Korea F1 | 2018/06/06 02:50 | Kim, Young Seok v Jae Hwan Kim | 4-6,4-6 |
| Challenger Busan Qual | 2018/05/12 01:00 | Jae Hwan Kim v Olaso, Guillermo | 0-6,5-7 |
| Challenger Gimcheon Qual | 2018/05/05 02:50 | Jae Hwan Kim v Luke Saville | 2-6,7-6,2-6 |
| Challenger Seoul Qual | 2018/04/29 04:15 | Jae Hwan Kim v Grills, Jacob | 6-4,2-6,4-6 |