Player data updated: 2026-09-01 16:32 UTC
Yeonwoo Ku
Instagram profile (opens in new tab)Yeonwoo Ku represents Korea (South) on the WTA Tour and is ranked No. 179, with a career high of No. 171. In TennisDB's records, Yeonwoo Ku has a career record of 0–2 and no singles titles.
Peak ranking
171 (Jul 27, 2026)
Elo peak
1542 (19th percentile)
Career record
0–2 (0.0%)
Career titles
0
Prize money
$239,382
Records cover recorded main-draw singles results in TennisDB's WTA event archive, including credited walkovers; qualifying is shown separately below.
WTA Matches full match log →
| Opponent | Score | Result | H2H | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Storm Hunter | 6-4 6-7(6) 0-6 | L | H2H | Match data | Aug 26, 2026 | Q2 | US Open | Grand Slam | Hard |
| Astra Sharma | 6-4 6-3 | W | H2H | Match data | Aug 25, 2026 | Q1 | US Open | Grand Slam | Hard |
| Astra Sharma | 6-4 6-3 | W | H2H | Match data | Aug 24, 2026 | Q1 | US Open | Grand Slam | Hard |
| Teodora Kostovic | 1-6 4-6 | L | H2H | Match data | Jun 23, 2026 | Q1 | Wimbledon | Grand Slam | Grass |
| Karolina Pliskova | 6-0 3-6 1-6 | L | H2H | Match data | May 19, 2026 | Q1 | Roland Garros | Grand Slam | Clay |
Qualifying matches are shown here but excluded from main-draw summaries and leaderboards.
Rivals all rivalries →
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Lois Boisson | 0 | 1 | 1 | Sep 15, 2025 | H2H |
| Claire Liu | 0 | 1 | 1 | Oct 12, 2023 | H2H |
Career Results
Career Results by Surface
| Season | Age | Type | Hard | Clay | Grass | Total | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 2022 | 19 | Qualifying | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 2023 | 20 | Qualifying | 2 | 0 | 2 | 100.0% | — | — | — | — | — | — | — | — | 2 | 0 | 2 | 100.0% |
| 2023 | 20 | WTA | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2024 | 21 | Qualifying | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 2025 | 22 | WTA | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 2026 | 23 | Qualifying | 3 | 3 | 6 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 3 | 5 | 8 | 37.5% |
| Career | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | 0 | 2 | 2 | 0.0% |
Career Results by Opponent Rank
Performance Stats
| Season | Age | Sample | Aces/M | DFs/M | 1st Sv% | 1st Sv Pts% | 2nd Sv Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 20 | 1/1 | 0.0 | 5.0 | 68.4% | 59.0% | 55.6% | 66.7% | — | 57.9% | 30.2% |
| 2025 | 22 | 1/1 | 0.0 | 4.0 | 66.7% | 43.2% | 36.4% | 53.9% | 66.7% | 40.9% | 33.3% |
| Career | 2/2 | 0.0 | 4.5 | 67.5% | 51.1% | 46.0% | 60.3% | 33.3% | 49.4% | 31.8% |
Advanced Stats
| Season | Age | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 19 | 1496 | 99.4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2023 | 20 | 1516 | 101.8 | -1.57 | -2.27 | 0.717 | 44.5% | — | — | — | 0.0% | -3.00 | — | — | — | +0.01 |
| 2024 | 21 | 1514 | 98.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2025 | 22 | 1488 | 94.0 | -1.85 | +0.96 | 0.564 | 38.1% | — | — | — | 0.0% | -4.50 | — | — | — | +0.03 |
| 2026 | 23 | 1532 | 103.5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 1542 | 99.4 | -1.71 | -0.66 | 0.628 | 41.3% | — | — | — | 0.0% | -3.75 | — | — | — | +2.00 |
Tournament Results by Category
Grand Slams
| Season | Age | AO | RG | W | USO | W-L Win % |
|---|---|---|---|---|---|---|
| 2026 | 23 | Q1 | Q1 | Q1 | Q2 | 2–4 (33%) |
| W-L | 0–1 (0%) | 0–1 (0%) | 0–1 (0%) | 2–1 (67%) |
2–4 (33%) |
WTA 500
| Season | Age | KOR | W-L Win % |
|---|---|---|---|
| 2024 | 21 | Q2 | 1–1 (50%) |
| 2025 | 22 | R32 | 0–1 (0%) |
| W-L | 1–2 (33%) |
1–2 (33%) |
WTA 250
| Season | Age | ASB | KOR | W-L Win % |
|---|---|---|---|---|
| 2022 | 19 | — | Q2 | 1–1 (50%) |
| 2023 | 20 | — | R32 | 2–1 (67%) |
| 2026 | 23 | Q2 | — | 1–1 (50%) |
| W-L | 1–1 (50%) | 3–2 (60%) |
4–3 (57%) |
Results show the best round reached per tournament and season.
WTA Ranking History full ranking history →
Similar Players
Other WTA players with comparable peak level, era, career record, and career scale.
| Player | Country | Peak Rank | Peak Elo | Grand Slams | Titles | M | W | L | Win % | Years | Match Log |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ana Sofia Sanchez | MEX | 173 | 1,500 | 0 | 0 | 13 | 1 | 12 | 7.7% | 2013–2026 | Match log |
| Clervie Ngounoue | USA | 169 | 1,632 | 0 | 0 | 8 | 1 | 7 | 12.5% | 2023–2025 | Match log |
| Ipek Oz | TUR | 163 | 1,520 | 0 | 0 | 9 | 1 | 8 | 11.1% | 2018–2026 | Match log |
| Barbora Palicova | CZE | 171 | 1,524 | 0 | 0 | 5 | 1 | 4 | 20.0% | 2022–2025 | Match log |
| Carolina Alves | BRA | 165 | 1,548 | 0 | 0 | 7 | 1 | 6 | 14.3% | 2015–2025 | Match log |
| Kyoka Okamura | JPN | 178 | 1,575 | 0 | 0 | 5 | 1 | 4 | 20.0% | 2022–2025 | Match log |
| Miriam Bulgaru | ROU | 168 | 1,603 | 0 | 0 | 10 | 2 | 8 | 20.0% | 2018–2026 | Match log |
| Cadence Brace | CAN | 182 | 1,583 | 0 | 0 | 5 | 1 | 4 | 20.0% | 2022–2026 | Match log |
| Carson Branstine | CAN | 172 | 1,633 | 0 | 0 | 4 | 1 | 3 | 25.0% | 2025–2025 | Match log |
| Berfu Cengiz | TUR | 190 | 1,500 | 0 | 0 | 6 | 1 | 5 | 16.7% | 2020–2026 | Match log |
| Nastasja Schunk | GER | 143 | 1,547 | 0 | 0 | 9 | 1 | 8 | 11.1% | 2021–2026 | Match log |
| Hanna Chang | USA | 179 | 1,508 | 0 | 0 | 2 | 1 | 1 | 50.0% | 2025–2025 | Match log |
Frequently Asked Questions
- How old is Yeonwoo Ku?
- Yeonwoo Ku is 23 years old, born on March 15, 2003.
- Which country does Yeonwoo Ku represent?
- Yeonwoo Ku represents Korea (South) in TennisDB's WTA records.
- Is Yeonwoo Ku left-handed or right-handed?
- Yeonwoo Ku plays n/a.
- How many Grand Slams has Yeonwoo Ku won?
- Yeonwoo Ku has not won a Grand Slam title.
- How many WTA 1000 titles has Yeonwoo Ku won?
- TennisDB does not group any of Yeonwoo Ku's titles under the modern WTA 1000 category.
- What is Yeonwoo Ku's highest WTA ranking?
- Yeonwoo Ku's career-high WTA singles ranking is world No. 171, first achieved on July 27, 2026.
- What is Yeonwoo Ku's career win-loss record?
- Yeonwoo Ku has a career WTA singles record of 0 wins and 2 losses (0.0%).
- How much career prize money has Yeonwoo Ku earned?
- Yeonwoo Ku has earned at least $239,382 in career prize money from professional tennis.
- Which seasons of Yeonwoo Ku's career appear in TennisDB?
- Yeonwoo Ku appears in TennisDB's WTA main-tour match records from 2023 through 2025.
- Who has Yeonwoo Ku faced most often?
- Yeonwoo Ku's most frequent opponent is Lois Boisson, with a head-to-head record of 0–1 across 1 meeting.