Stadium: COURT 3 Round: 45
| Challenger Kaohsiung | 2018/09/18 10:00 | Jason Jung v Yunseong Chung | 6-3,6-4 |
| Challenger Kaohsiung | 2018/09/17 04:15 | Yunseong Chung v Tristan Lamasine | 6-4,6-2 |
| Challenger Kaohsiung | 2018/09/16 07:45 | Yunseong Chung v Xin Gao | 7-5,6-3 |
| Challenger Kaohsiung | 2018/09/15 12:10 | Yunseong Chung v N. Vijay Sundar Prashanth | 7-5,6-2 |
| Challenger Shanghai | 2018/09/11 07:00 | Aldin Setkic v Yunseong Chung | 6-3,6-4 |
| Challenger Zhangjiagang | 2018/09/07 03:00 | Yunseong Chung v Alexander Bublik | 4-6,4-6 |
| Challenger Zhangjiagang | 2018/09/06 02:00 | Go Soeda v Yunseong Chung | 5-7,6-3,2-6 |
| Challenger Zhangjiagang | 2018/09/05 02:00 | Yunseong Chung v Roman Safiullin | 3-6,6-4,6-3 |
| ITF Kazakhstan F8 | 2018/09/24 03:30 | Grigoriy Korobeynikov v Sharobiddin Abzalov | 2-6,1-6 |
| ITF Kazakhstan F8 | 2018/09/23 06:55 | Flemming Peters v Grigoriy Korobeynikov | 7-5,6-7,1-6 |
| ITF Kazakhstan F8 | 2018/09/22 06:05 | Stepan Beresnev v Grigoriy Korobeynikov | 6-1,3-6,0-6 |
| ITF Kazakhstan F7 | 2018/09/16 06:10 | Max Houkes v Grigoriy Korobeynikov | 6-3,6-1 |
| ITF Kazakhstan F7 | 2018/09/15 05:00 | Grigoriy Korobeynikov v Nick Broekhof | 6-3,7-5 |
| ITF Spain F21 Qual | 2018/07/29 07:00 | Samy Grace v Grigoriy Korobeynikov | 6-3,6-0 |
| ITF Spain F20 Qual | 2018/07/21 11:00 | Grigoriy Korobeynikov v David Souto | 3-6,2-6 |
| ITF Spain F19 Qual | 2018/07/14 07:30 | Sergi Perez Contri v Grigoriy Korobeynikov | 6-2,1-6,6-2 |