Stadium: Court 2 Round: 25
| Challenger Taipei Qual | 2018/04/08 03:00 | Cheng-Yu Yu v Jacob Grills | 6-4,5-7,3-6 |
| 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 |
| Challenger Taipei Qual | 2018/04/08 03:00 | Cheng-Yu Yu v Jacob Grills | 6-4,5-7,3-6 |
| Challenger Taipei Qual | 2018/04/07 03:05 | Tsung-Hao Huang v Cheng-Yu Yu | 5-7,1-6 |
| ITF Japan F2 | 2018/03/13 02:10 | Cheng-Yu Yu v Shintaro Imai | 7-6,3-6,2-6 |
| ITF Singapore F2 | 2018/05/22 02:00 | Jacob Grills v Kazuki Nishiwaki | 3-6,6-3,5-7 |
| Challenger Busan Qual | 2018/05/12 02:35 | Jacob Grills v Renta Tokuda | 7-6,5-7,3-6 |
| Challenger Gimcheon Qual | 2018/05/06 07:10 | Yoshihito Nishioka v Jacob Grills | 6-2,0-6,7-6 |
| Challenger Gimcheon Qual | 2018/05/05 05:20 | Jacob Grills v Jung-Woong Na | 5-7,6-4,6-3 |
| Challenger Seoul Qual | 2018/04/30 05:00 | Renta Tokuda v Jacob Grills | 6-3,6-2 |
| Challenger Seoul Qual | 2018/04/29 04:15 | Jae Hwan Kim v Jacob Grills | 6-4,2-6,4-6 |
| Challenger Taipei | 2018/04/10 11:50 | Jason Jung v Jacob Grills | 6-0,6-3 |
| Challenger Taipei Qual | 2018/04/09 03:00 | Ruan Roelofse v Jacob Grills | 6-4,2-6,7-6 |