Name: On Yu Choi
Country: Republic of Korea
Birthdate: 29.12.06, 18 years
WTA ranking: 860
TOP ranking's position: 815 (31.03.25, 3400 points)
Points: 29
Matches total: 98
Win: 56
%: 57.14 %
Country: Republic of Korea
Birthdate: 29.12.06, 18 years
WTA ranking: 860
TOP ranking's position: 815 (31.03.25, 3400 points)
Points: 29
Matches total: 98
Win: 56
%: 57.14 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2025 | 9/5 | 9/5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2024 | 32/27 | 26/23 | 4/3 | 2/1 | 0/0 | 0/0 | 0/0 |
| 2023 | 12/6 | 12/6 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2022 | 3/3 | 3/3 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2021 | 0/1 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 |
| TOTAL | 56/42 | 50/37 | 4/3 | 2/2 | 0/0 | 0/0 | 0/0 |
| perc. % | 57.14 % | 57.47 % | 57.14 % | 50 % | 0 % | 0 % | 0 % |
On Yu Choi / scheduled / last
| no matches found |
On Yu Choi form
On Yu Choi / last 50 matches
| 26.03.25 | 1st round | Rinko Matsuda | On Yu Choi | 6-3, 6-1 |  | match details |  W15 Nonthaburi | Hard |
| 24.03.25 | qual. | On Yu Choi | Seo Hyeon Jang | 6-1, 6-0 |  | match details | ||
| 23.03.25 | q 1 | On Yu Choi | Amittalai Prasutnawin | 6-2, 6-1 | | match details | ||
| 19.03.25 | 1st round | Aunchisa Chanta | On Yu Choi | 6-1, 6-2 | | match details | W15 Nonthaburi | Hard |
| 17.03.25 | qual. | On Yu Choi | Eunji Oh | 6-0, 2-0, Eunji Oh - retired | | match details | ||
| 16.03.25 | q 1 | On Yu Choi | Smriti Bhasin | 6-1, 6-4 | | match details | ||
| 12.03.25 | 1st round | Joy De Zeeuw | On Yu Choi | 6-3, 6-4 | | match details | W35 Nonthaburi | Hard |
| 10.03.25 | qual. | On Yu Choi | Matilde Mariani | 6-2, 6-3 | | match details | ||
| 09.03.25 | q 1 | On Yu Choi | Lidia Podgorichani | 6-2, 6-2 | | match details | ||
| 17.02.25 | qual. | Hanyu Guo | On Yu Choi | On Yu Choi - walk over | | match details |  W35 Burnie | Hard |
| 16.02.25 | q 1 | On Yu Choi | I Wen Wan | 4-6, 6-4, 10-8 | | match details | ||
| 14.02.25 | 1/4 | Han Shi | On Yu Choi | 7-66, 6-2 | | match details |  W35 Timaru | Hard |
| 13.02.25 | 2nd round | On Yu Choi | Eunhye Lee | 7-66, 7-61 | | match details | ||
| 12.02.25 | 1st round | On Yu Choi | Lucia Gale | 6-4, 6-3 | | match details | ||
| 24.11.24 | q 1 | Haruna Arakawa | On Yu Choi | 5-7, 6-2, 6-2 | | match details | W75 Carrara | Hard |
| 23.11.24 | 2nd round | Nina Vargova | On Yu Choi | 3-6, 6-2, 10-7 | | match details | W50 Caloundra | Hard |
| 21.11.24 | 1st round | On Yu Choi | Shrivalli Rashmikaa Bhamidipaty | 6-3, 2-6, 6-2 | | match details | ||
| 18.11.24 | qual. | Naiktha Bains | On Yu Choi | 6-1, 6-2 | | match details | ||
| 17.11.24 | q 1 | On Yu Choi | Merel Hoedt | 6-2, 7-5 | | match details | ||
| 11.11.24 | q 1 | Merel Hoedt | On Yu Choi | 1-6, 6-3, 6-1 | | match details | W50 Brisbane | Hard |
| 30.10.24 | 1st round | Nina Vargova | On Yu Choi | 7-5, 4-6, 6-2 | | match details | W75 Sydney | Hard |
| 28.10.24 | qual. | On Yu Choi | Monique Barry | 6-2, 2-6, 6-4 | | match details | ||
| 27.10.24 | q 1 | On Yu Choi | Ava-Monet Sycamore | 6-2, 6-2 | | match details | ||
| 22.10.24 | 1st round | Taylah Preston | On Yu Choi | 6-2, 6-2 | | match details | W75 Playford | Hard |
| 21.10.24 | qual. | On Yu Choi | Nana Kawagishi | 6-0, 6-73, 6-0 | | match details | ||
| 20.10.24 | q 1 | On Yu Choi | Chelsea Stergiopoulos | 6-1, 6-1 | | match details | ||
| 03.10.24 | 2nd round | Boyoung Jeong | On Yu Choi | 6-3, 6-2 | | match details |  W15 Yeongwol | Hard |
| 02.10.24 | 1st round | On Yu Choi | Ramu Ueda | 6-1, 1-6, 6-0 | | match details | ||
| 24.09.24 | 1st round | Hong Yi Cody Wong | On Yu Choi | 6-3, 6-4 | | match details | W15 Yeongwol | Hard |
| 13.09.24 | 1/4 | Elina Nepliy | On Yu Choi | 6-4, 4-6, 6-0 | | match details |  W15 Singapore | I. hard |
| 12.09.24 | 2nd round | On Yu Choi | Yui Chikaraishi | 6-2, 6-3 | | match details | ||
| 10.09.24 | 1st round | On Yu Choi | Shria Atturu | 6-1, 6-0 | | match details | ||
| 01.09.24 | q 1 | Mana Kawamura | On Yu Choi | 6-3, 6-4 | | match details | W100 Incheon | Hard |
| 01.08.24 | 2nd round | Hayu Kinoshita | On Yu Choi | 6-4, 6-0 | | match details |  W15 Sapporo | Hard |
| 31.07.24 | 1st round | On Yu Choi | Alana Parnaby | 6-3, 6-3 | | match details | ||
| 30.07.24 | q 1 | On Yu Choi | Cheuk Ying Shek | 7-5, 4-6, 10-5 | | match details | ||
| 30.07.24 | qual. | On Yu Choi | Anri Nagata | 6-4, 7-5 | | match details | ||
| 25.07.24 | 2nd round | Ying Zhang | On Yu Choi | 6-0, 7-64 | | match details | W15 Sapporo | Hard |
| 24.07.24 | 1st round | On Yu Choi | Nao Nishino | 7-65, 7-65 | | match details | ||
| 23.07.24 | qual. | On Yu Choi | Ai Yamaguchi | 6-0, 6-1 | | match details | ||
| 02.07.24 | qual. | Hiromi Abe | On Yu Choi | 6-1, 6-2 | | match details |  W35 Hong | Hard |
| 01.07.24 | q 1 | On Yu Choi | Ching Laam Lai | 6-0, Ching Laam Lai - retired | | match details | ||
| 24.06.24 | qual. | Rinon Okuwaki | On Yu Choi | 2-6, 6-3, 10-5 | | match details | .png){kind=small} W35 Taipei | Hard |
| 23.06.24 | q 1 | On Yu Choi | Liya Chu | 6-0, 6-2 | | match details | ||
| 17.06.24 | qual. | Lisa-Marie Rioux | On Yu Choi | 6-2, 2-6, 10-3 | | match details | W35 Taipei | Hard |
| 17.06.24 | q 1 | On Yu Choi | Eunji Oh | 7-5, 6-4 | | match details | ||
| 05.06.24 | 1st round | Cherry Kim | On Yu Choi | 5-7, 7-61, 6-1 | | match details | W35 Daegu | Hard |
| 03.06.24 | qual. | On Yu Choi | Jeong Moon | 6-4, 6-3 | | match details | ||
| 02.06.24 | q 1 | On Yu Choi | Annette Robertson | 6-0, 6-0 | | match details | ||
| 27.05.24 | q 2 | Yeon Woo Ku | On Yu Choi | 6-0, 6-1 | | match details | W35 Changwon | Hard |
