| 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 Toyota Qual | 2018/03/10 01:00 | Ji-Hee Choi v Ayumi Koshiishi | 4-6,6-3,6-2 |
| ITF Women Toyota Qual | 2017/11/12 03:35 | Ji-Hee Choi v Rika Fujiwara | 0-6,6-7 |
| ITF Women Tokyo Qual | 2017/11/05 03:10 | Ji-Hee Choi v Chisa Hosonuma | 6-4,1-6,4-6 |
| ITF Women Tokyo Qual | 2017/11/04 05:30 | Ji-Hee Choi v Shiho Hisamatsu | 6-0,6-0 |
| ITF Women Nonthaburi | 2017/10/07 02:00 | Lulu Sun v Ji-Hee Choi | 2-6,3-6 |
| ITF Women Nonthaburi | 2017/10/06 02:00 | Chin-Wei Chan v Ji-Hee Choi | 5-7,3-6 |
| ITF Women Nonthaburi | 2017/10/05 02:00 | Ji-Hee Choi v Ling Zhang | 6-3,6-3 |
| ITF Women Nonthaburi | 2017/10/04 05:30 | Ji-Hee Choi v I-Hsuan Cho | 6-0,6-1 |
| 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 |
| 2018 Fed Cup | 2018/02/08 04:30 | Kurumi Nara v Sunam Jeong | 6-3,6-0 |
| 2018 Fed Cup | 2018/02/07 04:30 | Ya-Hsuan Lee v Sunam Jeong | 3-6,3-6 |
| ITF Women Toyota Qual | 2017/11/12 04:15 | Nagi Hanatani v Sunam Jeong | 6-4,6-3 |
| ITF Women Tokyo Qual | 2017/11/06 01:00 | Sunam Jeong v Tori Kinard | 6-3,4-6,3-6 |
| ITF Women Tokyo Qual | 2017/11/05 01:00 | Sunam Jeong v Michika Ozeki | 6-0,6-2 |