Stadium: Court 13 Round: 26 Ground: Hardcourt outdoor
| Challenger Gimcheon | 2017/05/01 04:25 | Brydan Klein v Yunseong Chung | 6-3,6-4 |
| Challenger Taipei Qual | 2017/04/16 06:50 | Toshihide Matsui v Yunseong Chung | 7-6,6-4 |
| ITF Japan F1 | 2017/03/07 02:35 | Yunseong Chung v Liang-Chi Huang | 3-6,6-7 |
| Challenger Yokohama Qual | 2017/02/25 04:50 | Yunseong Chung v Soonwoo Kwon | 6-7,5-7 |
| Challenger Kyoto Qual | 2017/02/18 05:25 | Yunseong Chung v Takuto Niki | 2-6,6-7 |
| ITF Thailand F6 | 2016/12/30 03:00 | Dmitry Popko v Yunseong Chung | 6-4,4-6,6-1 |
| ITF Thailand F6 | 2016/12/29 03:00 | Yunseong Chung v Fajing Sun | 4-6,7-5,6-2 |
| ITF Thailand F6 | 2016/12/28 03:00 | Yan Sabanin v Yunseong Chung | 6-7,1-6 |
| Challenger Taipei | 2017/04/18 09:20 | Go Soeda v Hiroki Moriya | 7-6,7-6 |
| Challenger Shenzhen | 2017/03/15 06:05 | Thomas Fabbiano v Hiroki Moriya | 6-4,6-4 |
| Challenger Zhuhai | 2017/03/06 05:05 | Hiroki Moriya v Luca Vanni | 2-6,1-6 |
| Challenger Yokohama | 2017/02/27 04:30 | Hiroki Moriya v Go Soeda | 4-6,4-6 |
| Challenger Kyoto | 2017/02/21 05:45 | Hiroki Moriya v Cedrik-Marcel Stebe | 3-6,6-2,4-6 |
| ATP Sofia Qual | 2017/02/05 10:00 | Filip Krajinovic v Hiroki Moriya | 6-3,6-4 |
| Challenger Quimper | 2017/01/31 13:25 | Hiroki Moriya v Hugo Nys | 5-7,2-6 |
| Australian Open 2017 Qual | 2017/01/14 01:30 | Bjorn Fratangelo v Hiroki Moriya | 4-6,6-4,6-4 |