| 11.11.19 | 1/4 | Ji-Hee Choi/Na-Lae Han | Kurumi Nara/Yuuki Tanaka | 2-6, 6-1, 13-11 |  | match details | W100 Tokyo | Difícil |
| 11.11.19 | 1/2 | Ji-Hee Choi/Na-Lae Han | Kanako Morisaki/Minori Yonehara | 7-62, 6-1 |  | match details |
| 11.11.19 | fin | Ji-Hee Choi/Na-Lae Han | Haruka Kaji/Junri Namigata | 6-3, 6-3 |  | match details |
| 11.11.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Rina Saigo/Yukina Saigo | 6-0, 6-1 |  | match details |
| 04.11.19 | 1/4 | Nao Hibino/Makoto Ninomiya | Ji-Hee Choi/Na-Lae Han | 7-62, 7-64 |  | match details | W100 Shenzhen | Difícil |
| 04.11.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Natela Dzalamidze/Kaja Juvan | 4-6, 6-4, 10-6 |  | match details |
| 19.09.19 | 1/4 | Laura Pigossi/Yafan Wang | Ji-Hee Choi/Na-Lae Han | 6-3, 6-3 |  | match details | Seoul | Difícil |
| 18.09.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Anastasia Potapova/Yana Sizikova | Anastasia Potapova/Yana Sizikova - walk over |  | match details |
| 10.09.19 | 1er ronda | Hayley Carter/Ena Shibahara | Ji-Hee Choi/Na-Lae Han | 6-4, 6-2 |  | match details | Hiroshima | Difícil |
| 03.06.19 | 1/2 | Ji-Hee Choi/Na-Lae Han | Su Jeong Jang/Na-Ri Kim | 6-2, 4-6, 10-7 |  | match details | W25 Daegu | Difícil |
| 03.06.19 | fin | Yu-Chieh Hsieh/Pei-Chi Lee | Ji-Hee Choi/Na-Lae Han | 6-3, 7-65 |  | match details |
| 03.06.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Ayumi Koshiishi/Himeno Sakatsume | 7-66, 6-1 |  | match details |
| 03.06.19 | 1/4 | Ji-Hee Choi/Na-Lae Han | Sunam Jeong/So-Ra Lee | 6-2, 6-3 |  | match details |
| 27.05.19 | fin | Ji-Hee Choi/Na-Lae Han | Kanako Morisaki/Minori Yonehara | 6-3, 6-3 |  | match details | W25 Incheon | Difícil |
| 27.05.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Seohyeon Kim/Ryeong Gyeong Park | 6-1, 6-2 |  | match details |
| 27.05.19 | 1/4 | Ji-Hee Choi/Na-Lae Han | Ayaka Okuno/Chanel Simmonds | 6-4, 2-6, 10-6 |  | match details |
| 27.05.19 | 1/2 | Ji-Hee Choi/Na-Lae Han | So Hee Jung/Sinhee Kim | 6-2, 6-2 |  | match details |
| 29.04.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Erina Hayashi/Yuki Naito | 6-714, 6-4, 11-9 |  | match details | W80 Gifu | Difícil |
| 29.04.19 | 1/4 | Ji-Hee Choi/Na-Lae Han | Ayaka Okuno/Lin Zhu | 6-1, 6-3 |  | match details |
| 29.04.19 | 1/2 | Yingying Duan/Xinyun Han | Ji-Hee Choi/Na-Lae Han | 6-4, 7-67 |  | match details |
| 08.04.19 | fin | Ji-Hee Choi/Na-Lae Han | Ching-Wen Hsu/Xiyu Wang | 6-4, 5-7, 10-8 |  | match details | W25 Osaka | Difícil |
| 08.04.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Kotoe Kamata/Momoko Nakatsuka | 6-3, 6-1 |  | match details |
| 08.04.19 | 1/4 | Ji-Hee Choi/Na-Lae Han | Mana Ayukawa/Kotomi Takahata | 7-5, 6-2 |  | match details |
| 08.04.19 | 1/2 | Ji-Hee Choi/Na-Lae Han | Mai Minokoshi/Akiko Omae | 6-3, 6-3 |  | match details |
| 01.04.19 | 1er ronda | Xiyu Wang/Wushuang Zheng | Ji-Hee Choi/Na-Lae Han | 7-65, 6-4 |  | match details | W25 Kashiwa | Difícil |
| 25.03.19 | 1er ronda | Kai-Chen Chang/Ching-Wen Hsu | Ji-Hee Choi/Na-Lae Han | 6-4, 1-6, 11-9 |  | match details | W25 Kofu | Difícil |
| 04.03.19 | 1er ronda | Ji-Hee Choi/Na-Lae Han | Yingying Duan/Kwan Yau Ng | 6-1, 6-0 |  | match details | W25 Yokohama | Difícil |
| 04.03.19 | 1/4 | Ji-Hee Choi/Na-Lae Han | Hua-Chen Lee/Nudnida Luangnam | 6-3, 7-65 |  | match details |
| 04.03.19 | 1/2 | Ji-Hee Choi/Na-Lae Han | Elena Gabriela Ruse/Gabriella Taylor | 6-1, 6-4 |  | match details |
| 04.03.19 | fin | Ji-Hee Choi/Na-Lae Han | Rutuja Bhosale/Akiko Omae | 6-1, 7-5 |  | match details |