Estadio: Court 11 Round: 25 Ground: Hardcourt outdoor
| ITFKashiwa - Femenino - Clasificación | 2018/04/01 05:00 | Aiko Yoshitomi v Sunam Jeong | 1-6,6-7 |
| ITF Gimcheon - Femenino | 2017/06/14 01:00 | Sunam Jeong v Aiko Yoshitomi | 6-3,1-6,6-3 |
| ITF W25 Daegu | 2019/06/04 01:00 | Pei-Chi Lee v Aiko Yoshitomi | 6-0,6-1 |
| ITF W25 Daegu | 2019/06/03 01:00 | Seung-Yeon Hong v Aiko Yoshitomi | 4-6,4-6 |
| ITF W15 Perth | 2019/02/21 03:10 | Aiko Yoshitomi v Anastasia Berezov | 6-7,4-6 |
| ITF W15 Perth | 2019/02/19 03:30 | Aiko Yoshitomi v Giorgie Jones | 6-2,6-4 |
| ITF W15 Sharm El Sheikh | 2019/01/30 08:00 | Lisa Ponomar v Aiko Yoshitomi | 4-6,6-2,6-3 |
| ITF W15 Sharm El Sheikh | 2019/01/23 08:00 | Aiko Yoshitomi v Maiar S A Abdelaziz | 3-6,4-6 |
| ITF Toowoomba - Femenino | 2018/10/08 05:00 | Marine Partaud v Aiko Yoshitomi | 6-0,6-2 |
| ITF Toowoomba - Femenino | 2018/10/08 01:30 | Isabella Bozicevic v Aiko Yoshitomi | 3-6,1-6 |
| ITF W25 Daegu | 2019/06/08 01:00 | Sunam Jeong v Haruna Arakawa | 1-6,5-7 |
| ITF W25 Daegu | 2019/06/06 02:00 | Chanel Simmonds v Sunam Jeong | 2-6,1-6 |
| ITF W25 Daegu | 2019/06/05 02:30 | Ramu Ueda v Sunam Jeong | 1-6,2-6 |
| ITF W25 Goyang | 2019/05/20 05:05 | Sunam Jeong v Seung-Yeon Hong | 6-2,3-6,2-10 |
| ITF W25 Changwon | 2019/05/15 02:20 | Sunam Jeong v Eunhye Lee | 2-6,3-6 |
| 2019 Fed Cup | 2019/02/09 06:55 | Ankita Raina v Sunam Jeong | 6-3,6-3 |
| WTA Seoul | 2018/09/15 03:15 | Sunam Jeong v Varvara Flink | 2-6,6-3,0-6 |
| ITF Women Yeongwol | 2018/09/09 01:00 | Sunam Jeong v So-Ra Lee | 6-2,6-1 |