Stadium: Court 1 Round: 25
| ITF Women Incheon | 2017/05/20 02:00 | 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 Toyota Qual | 2018/03/11 01:00 | Ji-Hee Choi v Sunam Jeong | 2-6,2-6 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Kwan Yau Ng v Sunam Jeong | 2-6,5-7 |
| 2018 Fed Cup | 2018/02/10 05:55 | Lin Zhu v Sunam Jeong | 4-6,7-5,6-1 |
| 2018 Fed Cup | 2018/02/09 05:15 | Nicha Lertpitaksinchai v Sunam Jeong | 7-6,2-6,0-6 |
| ITF Women Gifu | 2018/05/03 04:20 | Kurumi Nara v Na-Lae Han | 6-2,6-2 |
| ITF Women Gifu | 2018/05/01 04:05 | Na-Lae Han v Mai Minokoshi | 6-2,6-3 |
| ITF Women Osaka | 2018/04/14 01:00 | Na-Lae Han v Destanee Aiava | 2-6,6-1,4-6 |
| ITF Women Osaka | 2018/04/13 01:00 | Na-Lae Han v Ksenia Lykina | 6-2,4-6,6-1 |
| ITF Women Osaka | 2018/04/12 01:00 | Ankita Raina v Na-Lae Han | 6-3,0-6,2-6 |
| ITF Women Osaka | 2018/04/10 01:00 | Ramu Ueda v Na-Lae Han | 6-7,1-6 |
| ITF Women Kashiwa | 2018/04/05 01:00 | Na-Lae Han v Mayo Hibi | 2-6,4-6 |
| ITF Women Kashiwa | 2018/04/03 02:35 | Na-Lae Han v Momoko Kobori | 6-3,6-0 |