Back Da-yeon

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.

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.

She was a winner of the Heart Award in the 2023 Billie Jean King Cup.

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. before losing in the next round to Kimberly Birrell.

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.

ITF Circuit finals Singles: 21 (12 titles, 9 runner-ups) LegendW50 tournaments (0–1)W35 tournaments (5–2)W15 tournaments (7–6)Finals by surfaceHard (12–7)Clay (0–1)Carpet (0–1)

Doubles: 26 (15 titles, 11 runner-ups) LegendW75 tournaments (0–1)W50 tournaments (0–1)W35 tournaments (8–1)W15 tournaments (7–8)Finals by surfaceHard (13–9)Clay (2–2) Lucie Nguyen Tan2–6, 6–2, [7–10]

Top 5 highest rank wins

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