| Ku Yeon-woo | |
| Birth Date: | 2003 3, df=yes |
| Plays: | Right-handed |
| Careerprizemoney: | $63,580 |
| Singlestitles: | 3 ITF |
| Highestsinglesranking: | No. 411 (20 March 2023) |
| Currentsinglesranking: | No. 418 (11 November 2024) |
| Doublestitles: | 4 ITF |
| Highestdoublesranking: | No. 394 (14 August 2023) |
| Currentdoublesranking: | No. 550 (4 November 2024) |
| Updated: | 4 November 2024 |
Ku Yeon-woo (born 15 March 2003) is a South Korean tennis player.
She has a career-high singles ranking of 411 by the Women's Tennis Association (WTA), achieved on 20 March 2023, and a best WTA doubles ranking of 394, reached on 14 August 2023.[1]
Ku made her WTA Tour main-draw singles debut at the 2023 Korea Open as a qualifier, losing in the first round to Claire Liu[2]
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | class=unsortable | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Sep 2019 | ITF Yeongwol, South Korea | W15 | Hard |  Watsachol Sawatdee | 3–6, 6–3, 6–2 | |
| Win | 2–0 | Oct 2021 | ITF Sozopol, Bulgaria | W15 | Hard | Julia Terziyska | 6–4, 6–2 | |
| Win | 3–0 | Nov 2021 | ITF Lousada, Portugal | W15 | Hard (i) | Živa Falkner | 6–0, 7–5 | |
| Loss | 3–1 | Feb 2024 | ITF Gurugram, India | W35 | Hard |  Justina Mikulskytė | 0–6, 1–6 | |
| Loss | 3–2 | Mar 2024 | ITF Nagpur, India | W35 | Clay | Dalila Jakupović | 1–6, 2–6 |
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| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | class=unsortable | Score |
|---|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Mar 2021 | ITF Sharm El Sheikh, Egypt | W15 | Hard |  Raphaella Lacasse |  Alicia Barnett  Lily Miyazaki | 4–6, 1–6 | |
| Win | 1–1 | Aug 2021 | ITF Bad Waltersdorf, Austria | W15 | Clay | Priska Madelyn Nugroho |  Giulia Crescenzi Arianna Zucchini | 6–4, 6–3 | |
| Loss | 1–2 | Sep 2021 | ITF Aix-en-Provence, France | W15 | Clay |  Maria Bondarenko |  Julie Belgraver Léa Tholey | 1–6, 2–6 | |
| Win | 2–2 | Sep 2021 | ITF Melilla, Spain | W15 | Clay |  Cajisa Hennemann | Luisa Meyer auf der Heide Chantal Sauvant | 6–3, 6–0 | |
| Win | 3–2 | Oct 2021 | ITF Seville, Spain | W25 | Clay | Cajisa Hennemann |  Lina Gjorcheska Tena Lukas | 7–5, 6–1 | |
| Loss | 3–3 | Jul 2022 | ITF Quinta da Lago, Portugal | W25 | Clay |  Adrienn Nagy | Francisca Jorge Matilde Jorge | 4–6, 4–6 | |
| Win | 4–3 | May 2023 | ITF Incheon, South Korea | W25 | Hard |  Choi Ji-hee | Li Yu-yun  Tang Qianhui | 6–1, 6–1 | |
| Loss | 4–4 | Jul 2023 | ITF El Espinar, Spain | W25 | Hard | Diāna Marcinkēviča |  Rasheeda McAdoo  Alexandra Osborne | 4–6, 3–6 | |
| Loss | 4–5 | Mar 2024 | ITF Nagpur, India | W35 | Clay | Justina Mikulskytė | Irina Bara Dalila Jakupović | 7–6(8), 6–7(5), [7–10] |