Ku Yeon-woo

Ku Yeon-woo

Country (sports)	South Korea
Born	(2003-03-15) 15 March 2003
Plays	Right-handed
Prize money	$67,338
Singles
Career record	181–95
Career titles	4 ITF
Highest ranking	No. 411 (20 March 2023)
Current ranking	No. 523 (7 April 2025)
Doubles
Career record	55–43
Career titles	6 ITF
Highest ranking	No. 394 (14 August 2023)
Current ranking	No. 884 (7 April 2025)
Last updated on: 7 April 2025.

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]

Result	W–L	Date	Tournament	Tier	Surface	Opponent	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
Loss	3–3	Mar 2025	ITF Kashiwa, Japan	W15	Hard	Ayano Shimizu	3–6, 3–6
Win	4–3	Jun 2025	ITF Taipei, Taiwan	W35	Hard	Rina Saigo	6–1, 6–4

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Mar 2021	ITF Sharm El Sheikh, Egypt	W15	Hard	Raphaëlle 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	Caijsa Hennemann	Luisa Meyer auf der Heide Chantal Sauvant	6–3, 6–0
Win	3–2	Oct 2021	ITF Seville, Spain	W25	Clay	Caijsa 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	Open Castilla y León, 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]
Win	5–5	Mar 2025	ITF Kashiwa, Japan	W15	Hard	Naho Sato	Eri Shimizu Kisa Yoshioka	6–2, 6–4
Loss	5–6	Apr 2025	ITF Osaka, Japan	W35	Hard	Janice Tjen	Momoko Kobori Ayano Shimizu	4–6, 5–7
Loss	5–7	May 2025	ITF Daegu, South Korea	W15	Hard	Kim Da-bin	Back Da-yeon Lee Eun-hye	1–6, 1–6
Win	6–7	Jun 2025	ITF Taipei, Taiwan	W35	Hard	Eri Shimizu	Park So-hyun Ayano Shimizu	6–4, 2–6, [10–5]

• Ku Yeon-woo at the Women's Tennis Association
• Ku Yeon-woo at the International Tennis Federation