Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Republic of Korea
30.10.98, 25 years
30.10.98, 25 years
Yeon Woo Ku vs. Jun Sein - H2H matches
| 08.05.17 | q 1 | Yeon Woo Ku | Jun Sein | 6-1, 6-1 | match details |  Changwon | Hard |
Yeon Woo Ku form & Jun Sein form
Yeon Woo Ku - last matches
 Billie Jean - Hard | ||||
| 10.04.24 Rubber 1 | vs. En Shuo Liang | 6-4, 4-6, 6-4 |  | match details |
| 09.04.24 Rubber 1 | vs. Valentina Ivanov | 6-4, 6-4 | | match details |
 W50 Kofu - Hard | ||||
| 27.03.24 qual. | vs. Ya-Hsuan Lee | 4-6, 6-3, 3-6 |  | match details |
| 24.03.24 q 1 | vs. Elena Malygina | 6-3, 6-2 | | match details |
 W35 Indore - Hard | ||||
| 14.03.24 2nd round | vs. Polina Iatcenko | 6-1, 1-6, 1-6 | | match details |
| 13.03.24 1st round | vs. Aanya Choubey | 6-1, 6-0 | | match details |
| W35 Nagpur - Clay | ||||
| 10.03.24 fin | vs. Dalila Jakupovic | 1-6, 2-6 | | match details |
| 09.03.24 1/2 | vs. Daria Kudashova | 6-2, 7-5 | | match details |
| 08.03.24 1/4 | vs. Ekaterina Yashina | 6-1, 6-0 | | match details |
| 07.03.24 2nd round | vs. Irina Maria Bara | 6-4, 3-6, 6-1 | | match details |
| 06.03.24 1st round | vs. Yasmine Mansouri | 7-5, 3-6, 6-0 | | match details |
| W35 Gurugram - Hard | ||||
| 03.03.24 fin | vs. Justina Mikulskyte | 0-6, 1-6 | | match details |
| 02.03.24 1/2 | vs. Ankita Raina | 7-64, 6-3 | | match details |
| 01.03.24 1/4 | vs. Zhibek Kulambayeva | 6-0, 6-3 | | match details |
| 29.02.24 2nd round | vs. Fanny Ostlund | 4-6, 6-2, 7-5 | | match details |
| 28.02.24 1st round | vs. Madhurima Sawant | 6-0, 6-2 | | match details |
 W75 Burnie - Hard | ||||
| 05.02.24 qual. | vs. Mio Mushika | 6-72, 4-6 | | match details |
| 04.02.24 q 1 | vs. Ana Prso | 6-0, 6-0 | | match details |
| W75 Burnie - Hard | ||||
| 29.01.24 qual. | vs. Elena Micic | 6-0, 2-6, 5-7 | | match details |
| 28.01.24 q 1 | vs. Angelina Graovac | 6-2, 6-0 | | match details |
 W50 Nonthaburi - Hard | ||||
| 11.01.24 2nd round | vs. Katie Swan | 2-6, 2-6 | | match details |
| 10.01.24 1st round | vs. Anna Siskova | 7-5, 7-65 | | match details |
| 08.01.24 qual. | vs. Elena Milovanovic | 6-4, 6-4 | | match details |
| 07.01.24 q 1 | vs. Chihiro Muramatsu | 6-3, 6-2 | | match details |
| W50 Nonthaburi - Hard | ||||
| 01.01.24 qual. | vs. Ekaterina Maklakova | 3-6, 6-1, 5-6, - Yeon Woo Ku - retired | | match details |
| 31.12.23 q 1 | vs. Zhibek Kulambayeva | 7-5, 6-2 | | match details |
| W40 Yokohama - Hard | ||||
| 29.11.23 2nd round | vs. Ayano Shimizu | 0-6, 4-6 | | match details |
| 28.11.23 1st round | vs. Remika Ohashi | 6-3, 6-2 | | match details |
| 27.11.23 qual. | vs. Hina Nishi | 6-1, 6-0 | | match details |
| 26.11.23 q 1 | vs. Ramu Ueda | 6-0, 3-6, 6-0 | | match details |
Jun Sein - last matches
| Sangju - Hard | ||||
| 29.05.17 q 2 | vs. Su Yeon Chun | 2-6, 2-6 | | match details |
| Changwon - Hard | ||||
| 08.05.17 q 1 | vs. Yeon Woo Ku | 1-6, 1-6 | | match details |
| Yeongwol - Hard | ||||
| 05.09.16 q 1 | vs. Ji-Hyun Lee | 4-6, 7-66, 1-6 | | match details |
| Incheon - Hard | ||||
| 23.05.16 q 1 | vs. Maddison Inglis | 0-6, 2-6 | | match details |
| Yeongwol - Hard | ||||
| 31.08.15 q 2 | vs. Se-Hyun Kim | 0-6, 1-6 | | match details |
| Gimcheon - Hard | ||||
| 24.08.15 q 1 | vs. Ah Song | 1-6, 0-6 | | match details |
| Gimcheon - Hard | ||||
| 10.08.15 q 2 | vs. Hyojung Yea | 2-6, 4-6 | | match details |
| Goyang - Hard | ||||
| 08.06.15 q 1 | vs. So Hee Jung | 4-6, 0-6 | | match details |
| Yeongwol - Hard | ||||
| 25.08.14 q 1 | vs. Eun Se Jang | 4-6, 3-6 | | match details |
