Round: 44 Ground: Hardcourt outdoor
| ITF Korea F8 | 2016/09/04 03:00 | Masaki Sasai v Dong-Hak Sin | 6-2,6-1 |
| ITF Korea F8 | 2016/09/03 01:00 | Jae-Won Choi v Dong-Hak Sin | 4-6,5-7 |
| ITF Korea F1 Qual | 2016/06/13 05:00 | Dong-Hak Sin v Jong-Min Choi | 3-6,3-6 |
| ITF Korea F1 Qual | 2016/06/12 03:00 | Dong-Hak Sin v Seong Woon Yu | 6-3,6-2 |
| ITF Korea F1 Qual | 2016/06/11 01:00 | Geon Ju Shin v Dong-Hak Sin | 7-6,4-6,4-6 |
| ITF USA F5 | 2016/01/22 16:30 | Dong-Hak Sin v Χουάν Μανουέλ Μπενίτεζ Τσαβαριάγκα | 5-7,0-6 |
| ITF USA F4 | 2016/01/17 19:00 | Ριαάν ντι Τουάτ v Dong-Hak Sin | 7-5,2-6,2-6 |
| ITF USA F4 | 2016/01/15 11:30 | Τζέικ Βαν Έμπουργκ v Dong-Hak Sin | 4-6,6-7 |
| Challenger Seoul Qual | 2017/05/06 01:00 | Τσαν-Γέονγκ Οχ v Hyeong Jin Cho | 6-1,6-2 |
| ITF Korea F1 Qual | 2016/06/11 01:00 | A-Ram Kim v Hyeong Jin Cho | 6-0,6-3 |
| ITF Turkey F15 | 2016/04/14 09:35 | Hyeong Jin Cho v Marc Sieber | 1-6,1-6 |
| ITF Turkey F15 | 2016/04/13 07:00 | Hyeong Jin Cho v Ματέο Μάρφια | 1-6,6-3,6-4 |
| ITF Turkey F15 | 2016/04/11 08:00 | Πιοτρ Γκλινκόφσκι v Hyeong Jin Cho | 4-6,4-6 |
| ITF Turkey F15 | 2016/04/10 08:00 | Hyeong Jin Cho v Medhir Goyal | 6-1,6-0 |
| ITF Turkey F14 | 2016/04/05 07:00 | Hyeong Jin Cho v Έλμαρ Εγιούποβιτς | 1-6,6-3,3-6 |
| ITF Turkey F14 | 2016/04/04 07:00 | Σαχμπάζ Καν v Hyeong Jin Cho | 2-6,3-6 |