| ITF Women Toyota Qual | 2018/03/11 01:00 | Ji-Hee Choi v Sunam Jeong | 2-6,2-6 |
| ITF Women Gimcheon | 2017/06/11 03:40 | Sunam Jeong v Ji-Hee Choi | 6-3,3-6,6-2 |
| ITF Women Sangju | 2017/06/04 02:00 | Sunam Jeong v Ji-Hee Choi | 6-2,6-3 |
| ITF Women Changwon | 2018/05/24 01:00 | Katy Dunne v Sunam Jeong | 3-6,3-6 |
| ITF Women Changwon | 2018/05/22 01:00 | Sunam Jeong v Kaylah McPhee | 6-3,3-6,6-2 |
| ITF Women Incheon | 2018/05/15 03:20 | Jovana Jaksic v Sunam Jeong | 7-6,7-6 |
| ITF Women Goyang | 2018/05/09 01:00 | Sunam Jeong v Na-Lae Han | 4-6,2-6 |
| ITF Women Kashiwa Qual | 2018/04/02 02:35 | Momoko Kobori v Sunam Jeong | 6-0,6-2 |
| ITF Women Kashiwa Qual | 2018/04/01 05:00 | Aiko Yoshitomi v Sunam Jeong | 1-6,6-7 |
| ITF Women Nishi-Tama | 2018/03/20 01:00 | Dabin Kim v Sunam Jeong | 6-4,3-6,6-1 |
| ITF Women Toyota Qual | 2018/03/12 01:00 | Miyabi Inoue v Sunam Jeong | 6-4,6-2 |
| ITF Women Changwon | 2018/05/24 01:00 | Eunhye Lee v Ji-Hee Choi | 1-6,2-6 |
| ITF Women Changwon | 2018/05/23 01:00 | Ji-Hee Choi v Ling Zhang | 7-6,4-6,6-4 |
| ITF Women Changwon Qual | 2018/05/22 01:00 | Ji-Hee Choi v Alana Parnaby | 6-3,6-4 |
| ITF Women Changwon Qual | 2018/05/21 01:00 | Ji-Hee Choi v Sakura Hosogi | 6-4,6-3 |
| ITF Women Incheon | 2018/05/18 02:00 | Na-Lae Han v Ji-Hee Choi | 6-3,6-4 |
| ITF Women Incheon | 2018/05/17 01:30 | Ji-Hee Choi v Ching-Wen Hsu | 6-0,6-3 |
| ITF Women Incheon | 2018/05/16 01:30 | Ji-Hee Choi v Alicia Barnett | 6-3,6-7,6-2 |
| ITF Women Goyang | 2018/05/13 01:00 | Ji-Hee Choi v En Shuo Liang | 3-6,5-7 |