Stadium: Court 4 Round: 44 Ground: Hardcourt outdoor
| ITF Thailand F12 | 2017/12/13 04:15 | Jeong, Young-Hoon v Chen, Ti | 4-6,6-0,1-6 |
| ITF Thailand F12 | 2017/12/12 05:30 | Gao, Xin v Jeong, Young-Hoon | 1-6,7-6,2-6 |
| ITF Thailand F12 Qual | 2017/12/11 03:00 | Jeong, Young-Hoon v Aoran Wang | 6-1,7-5 |
| ITF Thailand F12 Qual | 2017/12/10 03:00 | Kim, Young Seok v Jeong, Young-Hoon | 4-6,3-6 |
| ITF Thailand F12 Qual | 2017/12/09 03:00 | Borisutpong, Pattanapong v Jeong, Young-Hoon | 1-6,5-7 |
| ITF Thailand F11 Qual | 2017/12/02 06:00 | Bourchier, Edward v Jeong, Young-Hoon | 6-4,3-6,6-4 |
| ITF Korea F5 | 2017/06/28 03:10 | Makoto Ochi v Jeong, Young-Hoon | 6-3,6-2 |
| ITF Korea F3 | 2017/06/16 02:00 | Kim, Cheong-Eui v Jeong, Young-Hoon | 6-3,6-0 |
| ITF Korea F1 | 2018/06/02 03:30 | Yoon, Ilsang v Han, Jin Sung | 7-6,4-6,6-3 |
| Indonesia F8, Singles Qualifying | 2017/11/26 05:10 | Manish Sureshkumar v Yoon, Ilsang | 6-0,6-1 |
| Indonesia F8, Singles Qualifying | 2017/11/25 06:00 | Tagashira, Kento v Yoon, Ilsang | 6-7,6-3,6-7 |
| ITF Indonesia F7 Qual | 2017/11/19 05:25 | Natthasith Kunsuwan v Yoon, Ilsang | 6-2,7-5 |
| ITF Indonesia F7 Qual | 2017/11/18 03:00 | Yoon, Ilsang v Goldenberg, Dustin | 6-4,6-3 |