H2H data updated: 2026-09-13 00:00 UTC
Compare the head-to-head record, career totals, season-by-season performance, and match log for Fiona Ferro vs Yeonwoo Ku.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Fiona Ferro | 6-3 6-2 | Yeonwoo Ku | Match data | Jan 12, 2026 | Q1 | Australian Open | Grand Slam | Hard |
1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fiona Ferro | #141 | #39 | 1,649 | 1,797 | 51 | 71 | 41.8% | 0 | 0 | 0 | 0 | 2 | 2 |
| Yeonwoo Ku | #179 | #171 | 452 | 1,529 | 0 | 2 | 0.0% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Fiona Ferro | Yeonwoo Ku | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 2014 | 0–1 | 0.0% | #345 | 1,494 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 2015 | 0–1 | 0.0% | #254 | 1,483 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2017 | 0–4 | 0.0% | #326 | 1,498 | 0 | 0 | 2023 | 0–1 | 0.0% | — | 1,516 | 0 | 0 |
| 21 | 2018 | 5–8 | 38.5% | #102 | 1,537 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 2019 | 16–17 | 48.5% | #63 | 1,613 | 0 | 1 | 2025 | 0–1 | 0.0% | #192 | 1,487 | 0 | 0 |
| 23 | 2020 | 11–4 | 73.3% | #42 | 1,767 | 0 | 2 | — | — | — | — | — | — | — |
| 24 | 2021 | 14–19 | 42.4% | #103 | 1,672 | 0 | 2 | — | — | — | — | — | — | — |
| 25 | 2022 | 1–4 | 20.0% | #411 | 1,572 | 0 | 2 | — | — | — | — | — | — | — |
| 26 | 2023 | 0–4 | 0.0% | #161 | 1,600 | 0 | 2 | — | — | — | — | — | — | — |
| 27 | 2024 | 1–4 | 20.0% | #284 | 1,545 | 0 | 2 | — | — | — | — | — | — | — |
| 28 | 2025 | 1–1 | 50.0% | #366 | 1,567 | 0 | 2 | — | — | — | — | — | — | — |
| 29 | 2026 | 2–4 | 33.3% | #141 | 1,690 | 0 | 2 | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Fiona Ferro | Yeonwoo Ku | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 17 | 2014 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2015 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 0 | 1 | 1 | 0.0% | 0 | 3 | 3 | 0.0% | — | — | — | — | 2023 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 21 | 2018 | 4 | 5 | 9 | 44.4% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 4 | 9 | 13 | 30.8% | 12 | 5 | 17 | 70.6% | 0 | 3 | 3 | 0.0% | 2025 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 2020 | 3 | 3 | 6 | 50.0% | 8 | 1 | 9 | 88.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2021 | 9 | 13 | 22 | 40.9% | 5 | 4 | 9 | 55.6% | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2022 | 0 | 2 | 2 | 0.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2023 | 0 | 1 | 1 | 0.0% | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2024 | 0 | 1 | 1 | 0.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 1 | 1 | 2 | 50.0% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 21 | 36 | 57 | 36.8% | 30 | 30 | 60 | 50.0% | 0 | 5 | 5 | 0.0% | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 118/120 of Fiona Ferro's and 2/2 of Yeonwoo Ku's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Fiona Ferro | Yeonwoo Ku | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 17 | 2014 | 1/1 | 0.0 | 4.0 | 49.0% | 40.0% | 34.6% | 22.2% | 50.0% | 37.3% | 43.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 18 | 2015 | 1/1 | 0.0 | 1.0 | 74.5% | 53.7% | 35.7% | 0.0% | 100.0% | 49.1% | 30.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 4/4 | 0.0 | 1.8 | 66.9% | 46.8% | 44.1% | 43.0% | 26.7% | 46.5% | 37.2% | 2023 | 1/1 | 0.0 | 5.0 | 68.4% | 59.0% | 55.6% | 66.7% | — | 57.9% | 30.2% |
| 21 | 2018 | 13/13 | 1.5 | 3.1 | 54.7% | 58.9% | 38.1% | 47.5% | 41.0% | 49.6% | 44.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 33/33 | 1.1 | 1.8 | 62.0% | 60.0% | 47.9% | 45.6% | 44.7% | 55.2% | 42.8% | 2025 | 1/1 | 0.0 | 4.0 | 66.7% | 43.2% | 36.4% | 53.9% | 66.7% | 40.9% | 33.3% |
| 23 | 2020 | 15/15 | 2.0 | 2.4 | 61.0% | 60.2% | 48.7% | 59.5% | 57.5% | 55.8% | 46.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 24 | 2021 | 31/33 | 0.8 | 3.0 | 60.3% | 60.0% | 43.6% | 47.7% | 57.3% | 53.4% | 44.8% | — | —/— | — | — | — | — | — | — | — | — | — |
| 25 | 2022 | 5/5 | 1.0 | 1.4 | 60.9% | 51.2% | 41.9% | 40.6% | 43.1% | 48.0% | 39.1% | — | —/— | — | — | — | — | — | — | — | — | — |
| 26 | 2023 | 4/4 | 0.0 | 1.5 | 73.3% | 44.7% | 33.3% | 33.5% | 29.0% | 42.1% | 40.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 27 | 2024 | 5/5 | 0.6 | 1.4 | 65.9% | 58.2% | 54.2% | 62.2% | 44.0% | 56.8% | 41.4% | — | —/— | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 6/6 | 0.5 | 1.5 | 69.5% | 60.3% | 43.1% | 38.0% | 53.3% | 53.7% | 49.2% | — | —/— | — | — | — | — | — | — | — | — | — |
| Career | — | 118/122 | 1.0 | 2.3 | 61.7% | 58.3% | 44.7% | 47.2% | 49.0% | 52.9% | 43.7% | — | 2/2 | 0.0 | 4.5 | 67.5% | 51.1% | 46.0% | 60.3% | 33.3% | 49.4% | 31.8% |
Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Fiona Ferro | Yeonwoo Ku | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 17 | 2014 | 1495 | 100.2 | -0.80 | -0.38 | 0.687 | 40.4% | — | — | — | 0.0% | -3.50 | — | — | — | -0.13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2015 | 1483 | 99.2 | +2.88 | -1.56 | 0.594 | 40.8% | — | — | — | 0.0% | -3.50 | — | — | — | +0.06 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2016 | 1437 | 88.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1496 | 99.4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 1498 | 104.5 | -2.30 | -2.35 | 0.695 | 42.2% | — | +24 | — | 11.1% | -3.00 | 0–1 | — | — | -0.45 | 2023 | 1516 | 101.8 | -1.57 | -2.27 | 0.717 | 44.5% | — | — | — | 0.0% | -3.00 | — | — | — | +0.01 |
| 21 | 2018 | 1537 | 108.8 | -3.30 | -0.14 | 0.877 | 47.0% | -22 | +7 | — | 38.7% | -0.94 | 3–2 (60%) | 2–0 | — | +0.19 | 2024 | 1514 | 98.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 1613 | 117.0 | -1.44 | -1.00 | 0.956 | 48.9% | -110 | +120 | -45 | 50.0% | -0.09 | 4–6 (40%) | 4–5 (44%) | 97.4 | +0.09 | 2025 | 1488 | 94.0 | -1.85 | +0.96 | 0.564 | 38.1% | — | — | — | 0.0% | -4.50 | — | — | — | +0.03 |
| 23 | 2020 | 1768 | 127.0 | -0.37 | +2.59 | 1.053 | 51.2% | -214 | +88 | — | 63.6% | +0.94 | 4–1 (80%) | 2–1 (67%) | 104.9 | -0.58 | 2026 | 1511 | 103.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2021 | 1672 | 128.2 | -1.71 | +1.18 | 0.963 | 49.3% | -69 | +146 | — | 41.7% | -0.36 | 6–8 (43%) | 1–5 (17%) | 96.6 | -0.52 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2022 | 1572 | 109.4 | -1.93 | -1.63 | 0.751 | 43.8% | — | +86 | — | 20.0% | -2.20 | — | 0–2 | — | -0.24 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2023 | 1600 | 102.2 | -3.47 | -1.03 | 0.700 | 41.8% | — | +2 | — | 11.1% | -3.00 | 0–1 | 0–1 | — | -0.48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2024 | 1546 | 111.2 | -0.71 | -1.16 | 0.957 | 49.4% | — | -29 | — | 42.9% | -0.43 | 0–4 (0%) | — | — | +0.47 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 1568 | 98.4 | — | — | — | — | — | — | — | 40.0% | +0.40 | 1–0 | 0–2 | — | -0.18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 1701 | 124.7 | -0.05 | +2.35 | 1.061 | 51.1% | — | +91 | — | 46.7% | +0.27 | 0–3 (0%) | 1–2 (33%) | — | -0.45 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1797 | 120.9 | -1.55 | +0.21 | 0.929 | 48.4% | -89 | +85 | -45 | 43.2% | -0.43 | 18–26 (41%) | 10–18 (36%) | 93.4 | -1.82 | — | 1529 | 99.8 | -1.71 | -0.66 | 0.628 | 41.3% | — | — | — | 0.0% | -3.75 | — | — | — | +2.00 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Qiang Wang | 1 | 5 | 6 | Jan 23, 2020 | H2H |
| Sorana Cirstea | 0 | 3 | 3 | Apr 15, 2026 | H2H |
| Viktorija Golubic | 1 | 2 | 3 | May 19, 2022 | H2H |
| Ajla Tomljanovic | 1 | 2 | 3 | Aug 11, 2021 | H2H |
| Kristina Mladenovic | 1 | 2 | 3 | Jun 17, 2021 | H2H |
| 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 |