H2H data updated: 2026-09-13 00:00 UTC

Yukie Koizumi vs Ei Iida H2H: 1-0

Yukie Koizumi holds a 1–0 lead over Ei Iida in their WTA head-to-head. Across 1 main-draw meeting, Yukie Koizumi leads 1–0 on carpet. Most recently, Yukie Koizumi won the 1988 Taipei round of 32 6-4 6-0.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Yukie Koizumi
JPN Age 68
H2H
1 – 0
1 main-draw meetings
Ei Iida
JPN Age 59

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Yukie Koizumi 6-4 6-0 Ei Iida #303 Match data Apr 21, 1988* R32 Taipei WTA 250 Carpet

Estimated match date where the exact historical date is unavailable. 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
Yukie Koizumi — — — 1,503 10 22 31.2% 0 0 0 0 0 0
Ei Iida #824 #203 5 1,500 3 10 23.1% 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 Yukie Koizumi Ei Iida
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 — — — — — — — 1988 0–2 0.0% #257 1,471 0 0
21 — — — — — — — 1989 0–2 0.0% #250 1,457 0 0
22 1980 0–1 0.0% — 1,487 0 0 — — — — — — —
23 — — — — — — — 1991 0–1 0.0% #220 1,451 0 0
24 — — — — — — — 1992 0–1 0.0% #358 1,438 0 0
25 — — — — — — — 1993 0–1 0.0% #328 1,433 0 0
26 — — — — — — — 1994 1–2 33.3% #283 1,434 0 0
27 1985 0–1 0.0% — 1,473 0 0 1995 2–1 66.7% #311 1,468 0 0
29 1987 3–4 42.9% — 1,480 0 0 — — — — — — —
30 1988 3–5 37.5% — 1,473 0 0 — — — — — — —
31 1989 2–6 25.0% — 1,447 0 0 — — — — — — —
32 1990 2–4 33.3% — 1,440 0 0 — — — — — — —
33 1991 0–1 0.0% — 1,434 0 0 — — — — — — —

Surface Results by Age

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 Yukie Koizumi Ei Iida
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
20 — — — — — — — — — — — — — — — — — 1988 0 1 1 0.0% — — — — — — — — 0 1 1 0.0%
21 — — — — — — — — — — — — — — — — — 1989 0 2 2 0.0% — — — — — — — — — — — —
22 1980 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
23 — — — — — — — — — — — — — — — — — 1991 0 1 1 0.0% — — — — — — — — — — — —
24 — — — — — — — — — — — — — — — — — 1992 0 1 1 0.0% — — — — — — — — — — — —
25 — — — — — — — — — — — — — — — — — 1993 — — — — — — — — 0 1 1 0.0% — — — —
26 — — — — — — — — — — — — — — — — — 1994 1 1 2 50.0% — — — — — — — — 0 1 1 0.0%
27 1985 0 1 1 0.0% — — — — — — — — — — — — 1995 2 1 3 66.7% — — — — — — — — — — — —
29 1987 1 1 2 50.0% 0 1 1 0.0% 1 1 2 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
30 1988 2 4 6 33.3% — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — —
31 1989 2 6 8 25.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
32 1990 2 4 6 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
33 1991 — — — — — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
Career — 7 17 24 29.2% 0 1 1 0.0% 1 1 2 50.0% 2 3 5 40.0% — 3 7 10 30.0% — — — — 0 1 1 0.0% 0 2 2 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 Yukie Koizumi Ei Iida
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
20 — — — — — — — — — — — — — — — — 1988 1471 93.2 — — — — — — — 20.0% -2.60 0–1 — — +0.36
21 — — — — — — — — — — — — — — — — 1989 1457 113.6 — — — — — — — 0.0% -3.50 — — — -0.06
22 1980 1487 97.4 — — — — — — — 33.3% -0.67 0–1 — — +0.06 — — — — — — — — — — — — — — — —
23 — — — — — — — — — — — — — — — — 1991 1452 102.6 — — — — — — — 33.3% -1.33 0–1 1–0 — +0.02
24 — — — — — — — — — — — — — — — — 1992 1438 95.8 — — — — — — — 0.0% -4.00 — — — +0.16
25 — — — — — — — — — — — — — — — — 1993 1434 101.4 — — — — — — — 0.0% -3.50 — — — -0.05
26 — — — — — — — — — — — — — — — — 1994 1435 101.4 — — — — +32 — — 42.9% -0.14 0–1 — — +0.18
27 1985 1473 98.8 — — — — — — — 33.3% -0.67 0–1 — — +0.19 1995 1468 104.0 — — — — +26 — — 66.7% +0.17 — 1–0 — -0.02
29 1987 1481 106.2 — — — — +53 — — 40.0% -0.07 1–0 0–2 — +1.04 — — — — — — — — — — — — — — — —
30 1988 1474 93.5 — — — — +18 — — 38.9% -1.11 1–1 1–2 (33%) — +0.84 — — — — — — — — — — — — — — — —
31 1989 1447 100.6 — — — — +12 — — 26.3% -1.00 2–1 (67%) — — +0.71 — — — — — — — — — — — — — — — —
32 1990 1441 88.9 — — — — +16 — — 28.6% -2.00 2–0 0–1 — +0.81 — — — — — — — — — — — — — — — —
33 1991 1435 102.4 — — — — — — — 0.0% -3.00 — — — +0.10 — — — — — — — — — — — — — — — —
Career — 1503 96.3 — — — — +21 — — 32.4% -1.05 6–4 (60%) 1–5 (17%) 100.2 +11.72 — 1500 104.5 — — — — +29 — — 31.0% -1.58 0–3 (0%) 2–0 — +4.54

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.