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 Harriet Dart vs Ena Koike.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Harriet Dart | 6-2 6-3 | Ena Koike | Match data | Mar 17, 2024 | Q1 | Miami Open | WTA 1000 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Harriet Dart | #131 | #70 | 924 | 1,730 | 45 | 79 | 36.3% | 0 | 0 | 0 | 0 | 0 | 0 |
| Ena Koike | #328 | #315 | 213 | 1,500 | 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 | Harriet Dart | Ena Koike | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 18 | 2015 | 0–1 | 0.0% | #443 | 1,494 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 2017 | 0–1 | 0.0% | #314 | 1,470 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 2018 | 1–4 | 20.0% | #149 | 1,507 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 2019 | 4–10 | 28.6% | #142 | 1,538 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 2020 | 1–1 | 50.0% | #150 | 1,531 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 2021 | 4–10 | 28.6% | #123 | 1,548 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 2022 | 14–15 | 48.3% | #98 | 1,641 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 2023 | 7–10 | 41.2% | #121 | 1,672 | 0 | 0 | — | — | — | — | — | — | — |
| 27 | 2024 | 10–13 | 43.5% | #104 | 1,694 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | 2025 | 1–7 | 12.5% | #172 | 1,529 | 0 | 0 | — | — | — | — | — | — | — |
| 29 | 2026 | 3–7 | 30.0% | #131 | 1,617 | 0 | 0 | — | — | — | — | — | — | — |
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 | Harriet Dart | Ena Koike | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2024 | 1466 | 102.1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2015 | 1494 | 97.9 | -0.68 | -1.37 | 0.679 | 40.6% | — | — | — | 0.0% | -4.00 | — | — | — | -0.13 | 2025 | 1455 | 98.0 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 2016 | 1477 | 97.9 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2026 | 1450 | 99.3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 2017 | 1470 | 101.5 | +1.70 | +1.04 | 0.679 | 43.1% | — | — | — | 0.0% | -3.50 | — | — | — | -0.12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 2018 | 1507 | 106.2 | -0.70 | +0.69 | 0.892 | 47.0% | — | — | +72 | 25.0% | -1.33 | 1–1 | 0–1 | — | -0.41 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2019 | 1538 | 100.9 | -4.04 | -4.25 | 0.729 | 43.5% | -23 | — | +48 | 31.4% | -1.94 | 4–3 (57%) | 3–0 (100%) | 104.7 | +0.53 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 2020 | 1531 | 107.7 | +0.76 | +0.07 | 0.872 | 46.8% | — | — | — | 40.0% | -1.40 | 1–0 | 1–0 | — | -0.04 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 2021 | 1548 | 117.8 | -1.61 | +0.98 | 0.963 | 49.1% | +20 | — | -32 | 40.0% | -0.60 | 1–6 (14%) | 4–2 (67%) | 98.5 | -0.30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 2022 | 1641 | 121.6 | -1.08 | -0.79 | 0.927 | 48.5% | -25 | — | +28 | 44.6% | -0.58 | 6–3 (67%) | 4–2 (67%) | 106.8 | -0.26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 2023 | 1673 | 121.1 | +0.21 | -0.20 | 1.051 | 50.6% | -53 | — | +76 | 42.9% | -0.05 | 4–4 (50%) | 2–6 (25%) | 97.2 | -0.47 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | 2024 | 1694 | 120.8 | -2.60 | +0.53 | 0.929 | 48.5% | -24 | -300 | +129 | 44.6% | -0.30 | 5–5 (50%) | 3–5 (38%) | 99.1 | -0.39 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 2025 | 1529 | 105.6 | -3.52 | -1.39 | 0.837 | 45.7% | +24 | — | — | 25.0% | -2.25 | 1–3 (25%) | 1–0 | — | +0.15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 2026 | 1618 | 116.2 | -2.26 | -0.61 | 0.848 | 46.6% | +45 | — | +3 | 34.6% | -1.23 | 3–3 (50%) | 1–1 | — | +0.53 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1730 | 119.6 | -1.73 | -0.60 | 0.905 | 47.9% | -13 | -300 | +52 | 38.7% | -0.87 | 26–28 (48%) | 19–17 (53%) | 102.9 | -0.73 | — | 1500 | 100.0 | — | — | — | — | — | — | — | — | — | — | — | — | — |
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 |
|---|---|---|---|---|---|
| Jil Teichmann | 1 | 2 | 3 | Jan 28, 2025 | H2H |
| Yulia Putintseva | 0 | 3 | 3 | Aug 15, 2024 | H2H |
| Katie Boulter | 1 | 2 | 3 | Jul 4, 2024 | H2H |
| Nuria Parrizas Diaz | 2 | 1 | 3 | Feb 10, 2024 | H2H |
| Marie Bouzkova | 1 | 1 | 2 | Sep 3, 2026 | H2H |
No career rivalry data available.