Stadium: Court 1 Round: 54
| ITF Women Gimcheon | 2017/06/14 01:00 | Jeong, Sunam v Yoshitomi, Aiko | 6-3,1-6,6-3 |
| Kofu, Singles W-WITF-JPN-02A | 2018/03/28 01:00 | Lin Zhu v Yoshitomi, Aiko | 6-1,6-3 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/26 01:00 | Zhang, Yuxuan v Yoshitomi, Aiko | 6-7,6-2,2-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/25 01:00 | Mayuka Aikawa v Yoshitomi, Aiko | 6-7,5-7 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 00:30 | Friant, Eimi v Yoshitomi, Aiko | 1-6,2-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/21 09:05 | Yoshitomi, Aiko v Zhang, Ling | 7-5,4-6,1-6 |
| ITF Women Toyota Qual | 2018/03/11 01:00 | Fujiwara, Rika v Yoshitomi, Aiko | 7-5,6-1 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Yoshitomi, Aiko v Erina Hayashi | 6-2,6-1 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/28 08:30 | Yoshitomi, Aiko v Ylena In-Albon | 4-6,0-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/20 01:00 | Dabin Kim v Jeong, Sunam | 6-4,3-6,6-1 |
| ITF Women Toyota Qual | 2018/03/12 01:00 | Inoue, Miyabi v Jeong, Sunam | 6-4,6-2 |
| ITF Women Toyota Qual | 2018/03/11 01:00 | Choi, Ji-Hee v Jeong, Sunam | 2-6,2-6 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Ng, Kwan Yau v Jeong, Sunam | 2-6,5-7 |
| Fed Cup, Groupe Mondial | 2018/02/10 05:55 | Lin Zhu v Jeong, Sunam | 4-6,7-5,6-1 |
| Fed Cup, Groupe Mondial | 2018/02/09 05:15 | Lertpitaksinchai, Nicha v Jeong, Sunam | 7-6,2-6,0-6 |
| Fed Cup, Groupe Mondial | 2018/02/08 04:30 | Nara, Kurumi v Jeong, Sunam | 6-3,6-0 |
| Fed Cup, Groupe Mondial | 2018/02/07 04:30 | Ya-Hsuan Lee v Jeong, Sunam | 3-6,3-6 |