Haruka Kaji
all rivalries →No career rivalry data available.
H2H data updated: 2026-09-13 00:00 UTC
Haruka Kaji vs Yeonwoo Ku
Compare the head-to-head record, career totals, season-by-season performance, and match log for Haruka Kaji vs Yeonwoo Ku.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
0
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0
0 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Yeonwoo Ku | 0-6 6-3 6-2 | Haruka Kaji | Match data | Sep 14, 2024 | Q1 | Korea Open | WTA 500 | 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.
Career Comparison
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Haruka Kaji | #259 | #219 | 327 | 1,506 | 0 | 0 | — | 0 | 0 | 0 | 0 | 0 | 0 |
| Yeonwoo Ku | #179 | #171 | 452 | 1,529 | 0 | 2 | 0.0% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
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 | Haruka Kaji | Yeonwoo Ku | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | — | — | — | — | — | — | — | 2023 | 0–1 | 0.0% | — | 1,516 | 0 | 0 |
| 22 | — | — | — | — | — | — | — | 2025 | 0–1 | 0.0% | #192 | 1,487 | 0 | 0 |
Advanced Statistics Comparison by Age
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 | Haruka Kaji | 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 | |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2022 | 1496 | 99.4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2023 | 1516 | 101.8 | -1.57 | -2.27 | 0.717 | 44.5% | — | — | — | 0.0% | -3.00 | — | — | — | +0.01 |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2024 | 1514 | 98.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2017 | 1490 | 100.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2025 | 1488 | 94.0 | -1.85 | +0.96 | 0.564 | 38.1% | — | — | — | 0.0% | -4.50 | — | — | — | +0.03 |
| 23 | 2018 | 1475 | 93.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1511 | 103.8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2019 | 1457 | 96.6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2023 | 1450 | 90.4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2024 | 1468 | 97.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 2025 | 1447 | 93.2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | 2026 | 1421 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1506 | 88.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1529 | 99.8 | -1.71 | -0.66 | 0.628 | 41.3% | — | — | — | 0.0% | -3.75 | — | — | — | +2.00 |
Career Rivalries
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
Yeonwoo Ku
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 |