BETA SAÚDE
Back Da-yeon
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| Country (sports) |  South Korea | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Born | 24 January 2002 Daejeon, South Korea | ||||||||||||||
| Height | 173 cm (5 ft 8 in) | ||||||||||||||
| Turned pro | 2017 | ||||||||||||||
| Plays | Right-handed | ||||||||||||||
| Prize money | $147,340 | ||||||||||||||
| Singles | |||||||||||||||
| Career record | 235–102 | ||||||||||||||
| Career titles | 12 ITF | ||||||||||||||
| Highest ranking | No. 245 (27 July 2026) | ||||||||||||||
| Current ranking | No. 245 (27 July 2026) | ||||||||||||||
| Doubles | |||||||||||||||
| Career record | 135–83 | ||||||||||||||
| Career titles | 15 ITF | ||||||||||||||
| Highest ranking | No. 234 (25 May 2026) | ||||||||||||||
| Current ranking | No. 234 (25 May 2026) | ||||||||||||||
Medal record
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| Last updated on: 28 July 2026. | |||||||||||||||
Back Da-yeon (born 24 January 2002) is a Korean tennis player. She has a career-high singles ranking of 245 by the WTA, achieved on 27 July 2026, and a best doubles ranking of No. 234, reached on 20 July 2026. She has won twelve singles titles and 15 doubles titles on the ITF Circuit. [1]
Career
Back made her WTA Tour debut at the 2022 Korea Open, after qualifying for the singles main draw. She lost in the first round to fellow South Korean player Han Na-lae.[2]
She was a winner of the Heart Award in the 2023 Billie Jean King Cup.[3]
Ranked No. 569, she received a wildcard from the 2023 Korea Open and upset second seed Jelena Ostapenko in the champion's tie-break having fought back from match point down earlier in the third set.[4][5][6] before losing in the next round to Kimberly Birrell.[7]
Given a wildcard for the newly upgraded WTA 500 Korea Open in 2024, she tried to defend her success of the previous year, but went out in the first round, in straight sets to qualifier Carol Zhao.[8]
ITF Circuit finals
Singles: 21 (12 titles, 9 runner-ups)
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| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Sep 2019 | ITF Yeongwol, South Korea | W15 | Hard | Choi Ji-hee |
7–5, 3–6, 2–6 |
| Win | 1–1 | Sep 2022 | ITF Yeongwol, South Korea | W15 | Hard | Kim Da-bin |
7–6(2), 3–0 ret. |
| Loss | 1–2 | Jul 2023 | ITF Nakhon, Thailand | W15 | Hard |  Lanlana Tararudee |
4–6, 4–6 |
| Win | 2–2 | Aug 2023 | ITF Sapporo, Japan | W15 | Hard |  Miho Kuramochi |
6–2, 6–0 |
| Win | 3–2 | Sep 2023 | ITF Yeongwol, South Korea | W15 | Hard |  Dasha Ivanova |
6–3, 6–0 |
| Loss | 3–3 | Sep 2023 | ITF Yeongwol, South Korea | W15 | Hard | Kim Da-bin |
2–6, 1–6 |
| Loss | 3–4 | May 2024 | ITF Monastir, Tunisia | W15 | Hard |  Mariia Tkacheva |
4–6, 3–6 |
| Win | 4–4 | May 2024 | ITF Monastir, Tunisia | W15 | Hard |  Katarína Kužmová |
6–3, 6–0 |
| Win | 5–4 | Jun 2024 | ITF Daegu, South Korea | W35 | Hard | Eri Shimizu |
4–6, 6–2, 6–3 |
| Win | 6–4 | Sep 2024 | ITF Yeongwol, South Korea | W15 | Hard | Lee Eun-hye |
6–2, 6–1 |
| Win | 7–4 | Sep 2024 | ITF Yeongwol, South Korea | W15 | Hard | Jeong Bo-young |
6–1, 6–2 |
| Loss | 7–5 | Mar 2025 | ITF Nonthaburi, Thailand | W35 | Hard | Lee Eun-hye |
3–6, 4–6 |
| Loss | 7–6 | Mar 2025 | ITF Nonthaburi, Thailand | W15 | Hard | Anchisa Chanta |
6–7((3), 3–6 |
| Win | 8–6 | May 2025 | ITF Daegu, South Korea | W15 | Hard | Lee Eun-hye |
5–6 ret. |
| Win | 9–6 | Jul 2025 | ITF Monastir, Tunisia | W35 | Hard |  Arianna Zucchini |
6–7(4), 6–2, 7–6(7) |
| Loss | 9–7 | Oct 2025 | ITF Makinohara, Japan | W35 | Carpet | Sara Saito |
1–6, 2–6 |
| Loss | 9–8 | Apr 2026 | ITF Singapore, Singapore | W15 | Hard (i) | Rinko Matsuda |
6–7(4), 2–6 |
| Win | 10–8 | May 2026 | ITF Andong, South Korea | W35 | Hard | Jeong Bo-young |
3–6, 6–2, 6–0 |
| Win | 11–8 | May 2026 | ITF Changwon, South Korea | W35 | Hard | Lee Ha-eum |
6–1, 6–2 |
| Win | 12–8 | Jun 2026 | ITF Taipei, Chinese Taipei | W35 | Hard | Haruka Kaji |
6–1, 7–5 |
| Loss | 12–9 | Jul 2026 | ITF Horb, Germany | W50 | Clay |  Lea Nilsson |
6–7(3), 2–6 |
Doubles: 26 (15 titles, 11 runner-ups)
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| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Oct 2021 | ITF Antalya, Turkey | W15 | Clay |  Tian Fangran |
 Doğa Türkmen Melis Ayda Uyar |
7–6(5), 6–1 |
| Loss | 1–1 | Nov 2021 | ITF Antalya, Turkey | W15 | Clay | Tian Fangran |
 Ksenia Laskutova Aleksandra Pospelova |
6–2, 2–6, [6–10] |
| Win | 2–1 | Nov 2021 | ITF Antalya, Turkey | W15 | Clay | Tian Fangran |
Anna Chekanskaya  Zoziya Kardava |
7–5, 6–3 |
| Loss | 2–2 | Jul 2022 | ITF Monastir, Tunisia | W15 | Hard | Jeong Bo-young |
 Priska Madelyn Nugroho Wei Sijia |
4–6, 1–6 |
| Win | 3–2 | Sep 2022 | ITF Yeongwol, South Korea | W15 | Hard | Lee Eun-hye |
Junri Namigata Riko Sawayanagi |
7–5, 3–6, [13–11] |
| Loss | 3–3 | Sep 2022 | ITF Yeongwol, South Korea | W15 | Hard | Lee Eun-hye |
Kim Da-bin Lee So-ra |
4–6, 6–3, [10–12] |
| Loss | 3–4 | Mar 2023 | ITF Sharm El Sheikh, Egypt | W15 | Hard | Jeong Bo-young |
Polina Iatcenko  Sandra Samir |
4–6, 5–7 |
| Loss | 3–5 | Aug 2023 | ITF Sapporo, Japan | W15 | Hard | Jeong Bo-young |
Mushika Mao Himari Satō |
3–6, 4–6 |
| Loss | 3–6 | Aug 2023 | ITF Sapporo, Japan | W15 | Hard | Jeong Bo-young |
Nana Kawagishi Kisa Yoshioka |
3–6, 3–6 |
| Loss | 3–7 | Sep 2023 | ITF Yeongwol, South Korea | W15 | Hard | Jeong Bo-young |
Kim Da-bin Kim Na-ri |
2–6, 3–6 |
| Win | 4–7 | May 2024 | ITF Monastir, Tunisia | W15 | Hard |  María Herazo González |
Natsuho Arakawa Zhang Ying |
6–4, 6–4 |
| Loss | 4–8 | Jul 2024 | ITF Ust-Kamenogorsk, Kazakhstan | W15 | Hard | Ayumi Koshiishi |
Aglaya Fedorova Daria Khomutsianskaya |
6–7(4), 2–6 |
| Win | 5–8 | Aug 2024 | ITF Ust-Kamenogorsk, Kazakhstan | W15 | Hard | Anastasia Sukhotina |
Varvara Panshina  Daria Shubina |
6–3, 6–1 |
| Win | 6–8 | Sep 2024 | ITF Yeongwol, South Korea | W15 | Hard | Lee Eun-hye |
Kim Na-ri Ye Qiuyu |
6–1, 6–1 |
| Win | 7–8 | Feb 2025 | ITF Timaru, New Zealand | W35 | Hard | Lee Eun-hye |
Choi On-yu Nanari Katsumi |
7–5, 6–3 |
| Win | 8–8 | May 2025 | ITF Andong, South Korea | W35 | Hard | Lee Eun-hye |
Han Hyeong-ju Kim Eun-chae |
3–6, 6–2, [10–4] |
| Win | 9–8 | May 2025 | ITF Daegu, South Korea | W15 | Hard | Lee Eun-hye |
Kim Da-bin Ku Yeon-woo |
6–1, 6–1 |
| Win | 10–8 | Jul 2025 | ITF Monastir, Tunisia | W35 | Hard | Ku Yeon-woo |
Sakura Hosogi Misaki Matsuda |
6–3, 6–3 |
| Loss | 10–9 | Jul 2025 | ITF Monastir, Tunisia | W35 | Hard |  Vaidehi Chaudhari |
 Tenika McGiffin  Elza Tomase |
6–3, 3–6, [8–10] |
| Loss | 10–10 | Nov 2025 | ITF Playford, Australia | W75 | Hard | Lee Eun-hye |
Talia Gibson Maddison Inglis |
2–6, 0–6 |
| Win | 11–10 | Feb 2026 | ITF Monastir, Tunisia | W35 | Hard |  Sapfo Sakellaridi |
Alina Yuneva Daria Egorova |
6–3, 6–2 |
| Win | 12–10 | Apr 2026 | ITF Goyang, South Korea | W35 | Hard | Jaeda Daniel |
Kim Da-bin Park So-hyun |
6–4, 6–0 |
| Win | 13–10 | May 2026 | ITF Changwon, South Korea | W35 | Hard | Guo Meiqi |
Hanna Chang Jang Ga-eul |
7–5, 7–5 |
| Win | 14–10 | May 2026 | ITF Andong, South Korea | W35 | Hard | Jang Su-jeong |
Jeong Bo-young Park So-hyun |
6–4, 6–3 |
| Win | 15–10 | Jun 2026 | ITF Taipei, Chinese Taipei | W35 | Hard |  Tsao Chia-yi |
Natsumi Kawaguchi Ayano Shimizu |
7–5, 6–1 |
| Loss | 15–11 | Jul 2026 | ITF Horb, Germany | W50 | Clay | Park So-hyun |
Sapfo Sakellaridi
|
2–6, 6–2, [7–10] |
Top 5 highest rank wins
| # | Tournament | Category | Start date | Surface | Rd | Opponent | Rank | Score | PSR |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Korea Open, South Korea | WTA 250 | 9 October 2023 | Hard | 1R | Jeļena Ostapenko |
No. 13 | 3–6, 6–1, 7–6(4) | No. 569 |
| 2 | Korea Open, South Korea | WTA 250 | 19 September 2022 | Hard | Q1 |  Lina Glushko |
No. 218 | 7–5, 1–6, 6–1 | No. 679 |
| 3 | Incheon Open, South Korea | ITF W100 | 2 September 2024 | Hard | 1R | Ma Yexin |
No. 223 | 6–4, 6–3 | No. 344 |
| 4 | Gold Coast Tennis International, Australia | ITF W60 | 27 November 2023 | Hard | 1R | Seone Mendez |
No. 234 | 6–3, 6–3 | No. 480 |
| 5 | Korea Open, South Korea | WTA 250 | 19 September 2022 | Hard | Q2 | Daniela Vismane |
No. 274 | 6–2, 6–3 | No. 679 |
- statistics correct as of 1 December 2025[update].
References
- ↑ "Dayeon Back | Player Stats & More – WTA Official". Women's Tennis Association.
- ↑ "Jang Su-jeong out of Korea Open; Han Na-lae advances". Korea JoongAng Daily. 19 September 2022. Retrieved 16 September 2024.
- ↑ "Fernandez, Back, Peterson and Riera named Heart Award winners". Billie Jean King Cup. May 23, 2023. Retrieved 10 October 2023.
- ↑ "Back upsets Ostapenko, Jang knocks out Kenin in Seoul". Women's Tennis Association. Retrieved 2023-11-23.
- ↑ "Korea Open: Dayeon Back stuns Jelena Ostapenko in huge shock, Jessica Pegula cruises past Viktoria Hruncakova". Eurosport. Retrieved 16 September 2024.
- ↑ "Jelena Ostapenko ousted by 569th-ranked Back Dayeon at Hana Bank Korea Open". Tennis.com. Retrieved 16 September 2024.
- ↑ "Birrell enjoying career-best run at WTA tournament in Seoul". Tennis Australia. Retrieved 16 September 2024.
- ↑ "Korea Open: Zhao through to second round". Tennis Majors. 16 September 2024. Retrieved 16 September 2024.
External links
- Dayeon Back at the Women's Tennis Association
- Dayeon Back at World Tennis
- Dayeon Back at the Billie Jean King Cup (archived former page)
- Baek Da-Yeon at InterSportStats
Women's Tennis Association: Top South Korean female singles tennis players | |
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as of 15 June 2026 | |
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