H2H data updated: 2026-09-12 00:00 UTC

Yvonne Vermaak vs Etsuko Inoue H2H: 1-0

Yvonne Vermaak holds a 1–0 lead over Etsuko Inoue in their WTA head-to-head. Across 1 main-draw meeting, Yvonne Vermaak leads 1–0 on hard courts. Most recently, Yvonne Vermaak won the 1985 Key Biscayne round of 64 6-1 6-2.

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

Yvonne Vermaak
RSA Age 69 Right-Handed 155 cm / 5'1"
H2H
1 – 0
1 main-draw meetings
Etsuko Inoue
JPN Age 61 Right-Handed 164 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Yvonne Vermaak 6-1 6-2 Etsuko Inoue Match data Jan 23, 1985* R64 Key Biscayne WTA 250 Hard

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
Yvonne Vermaak #558 #38 10 1,892 239 249 49.0% 0 0 0 0 5 5
Etsuko Inoue #310 #26 27 1,803 120 133 47.4% 0 0 0 0 2 2

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 Yvonne Vermaak Etsuko Inoue
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 1980 0–1 0.0% — 1,487 0 0
16 1973 0–2 0.0% — 1,495 0 0 1981 0–1 0.0% — 1,483 0 0
17 1974 1–2 33.3% — 1,489 0 0 1982 3–2 60.0% — 1,523 0 0
18 1975 15–12 55.6% — 1,599 0 0 1983 17–15 53.1% — 1,641 0 1
19 1976 8–10 44.4% — 1,606 0 1 1984 19–19 50.0% #68 1,699 0 2
20 1977 20–14 58.8% — 1,765 0 2 1985 13–21 38.2% #70 1,633 0 2
21 1978 29–23 55.8% — 1,791 0 2 1986 9–14 39.1% #80 1,635 0 2
22 1979 15–23 39.5% — 1,779 0 2 1987 20–15 57.1% #30 1,764 0 2
23 1980 19–18 51.4% — 1,741 0 2 1988 11–14 44.0% #52 1,703 0 2
24 1981 19–28 40.4% — 1,719 0 2 1989 15–18 45.5% #68 1,669 0 2
25 1982 36–27 57.1% — 1,820 0 2 1990 13–13 50.0% #70 1,661 0 2
26 1983 33–26 55.9% — 1,754 0 4 — — — — — — —
27 1984 29–28 50.9% #41 1,800 0 5 — — — — — — —
28 1985 8–21 27.6% #41 1,604 0 5 — — — — — — —
29 1986 6–11 35.3% #104 1,565 0 5 — — — — — — —
30 1987 1–3 25.0% #201 1,558 0 5 — — — — — — —
31 1988 0–1 0.0% #287 1,541 0 5 — — — — — — —

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 Yvonne Vermaak Etsuko Inoue
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 %
16 1973 0 2 2 0.0% — — — — — — — — — — — — 1981 — — — — — — — — — — — — 0 1 1 0.0%
17 1974 1 2 3 33.3% — — — — — — — — — — — — 1982 3 2 5 60.0% — — — — — — — — — — — —
18 1975 4 3 7 57.1% 7 4 11 63.6% 3 4 7 42.9% — — — — 1983 5 5 10 50.0% 4 4 8 50.0% 3 6 9 33.3% — — — —
19 1976 1 1 2 50.0% 7 6 13 53.8% 0 2 2 0.0% 0 1 1 0.0% 1984 9 7 16 56.3% 6 7 13 46.2% 2 3 5 40.0% 2 2 4 50.0%
20 1977 3 2 5 60.0% 6 7 13 46.2% 8 2 10 80.0% 3 3 6 50.0% 1985 5 9 14 35.7% 4 5 9 44.4% 4 5 9 44.4% 0 2 2 0.0%
21 1978 13 7 20 65.0% 2 2 4 50.0% 8 4 12 66.7% 6 10 16 37.5% 1986 3 7 10 30.0% 0 2 2 0.0% 6 3 9 66.7% 0 2 2 0.0%
22 1979 4 6 10 40.0% 4 4 8 50.0% 5 4 9 55.6% 2 9 11 18.2% 1987 7 6 13 53.8% — — — — 9 6 15 60.0% 4 3 7 57.1%
23 1980 2 5 7 28.6% 9 5 14 64.3% 4 4 8 50.0% 4 4 8 50.0% 1988 4 8 12 33.3% — — — — 5 5 10 50.0% 2 1 3 66.7%
24 1981 7 9 16 43.8% 11 9 20 55.0% 0 1 1 0.0% 1 9 10 10.0% 1989 11 14 25 44.0% — — — — 4 3 7 57.1% 0 1 1 0.0%
25 1982 4 4 8 50.0% 13 7 20 65.0% 9 6 15 60.0% 10 10 20 50.0% 1990 10 9 19 52.6% — — — — 2 3 5 40.0% 1 1 2 50.0%
26 1983 14 4 18 77.8% 7 8 15 46.7% 8 5 13 61.5% 4 9 13 30.8% — — — — — — — — — — — — — — — — —
27 1984 12 7 19 63.2% 7 8 15 46.7% 8 6 14 57.1% 2 7 9 22.2% — — — — — — — — — — — — — — — — —
28 1985 5 8 13 38.5% 1 4 5 20.0% 1 3 4 25.0% 1 6 7 14.3% — — — — — — — — — — — — — — — — —
29 1986 1 2 3 33.3% 4 6 10 40.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — —
30 1987 1 1 2 50.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
31 1988 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 72 64 136 52.9% 78 72 150 52.0% 55 44 99 55.6% 33 68 101 32.7% — 57 67 124 46.0% 14 18 32 43.8% 35 34 69 50.7% 9 13 22 40.9%

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 Yvonne Vermaak Etsuko Inoue
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
15 — — — — — — — — — — — — — — — — 1980 1488 97.8 — — — — — — — 0.0% -4.00 — — — -0.09
16 1973 1496 101.8 — — — — — — — 20.0% -3.20 0–1 — — -0.39 1981 1483 100.8 — — — — — — — 33.3% -1.33 0–1 — — -0.02
17 1974 1489 99.2 — — — — +44 — — 42.9% -0.71 0–1 — — +0.69 1982 1523 98.7 — — — — +58 — — 54.5% +0.09 1–0 0–1 — +0.31
18 1975 1599 120.1 — — — — +53 -2 -47 57.1% +0.46 3–6 (33%) 3–0 (100%) 100.2 +2.43 1983 1642 120.1 — — — — +5 -38 -81 52.9% +0.06 2–2 (50%) 2–0 — +1.48
19 1976 1607 119.9 — — — — -10 +40 — 48.8% +0.09 2–5 (29%) 1–3 (25%) — +0.96 1984 1700 134.3 — — — — -9 -31 -114 50.6% +0.12 5–6 (45%) 3–5 (38%) 98.1 +0.10
20 1977 1765 138.0 — — — — -79 -79 -75 58.1% +0.41 3–3 (50%) 6–5 (55%) 102.4 +0.27 1985 1633 117.6 — — — — -18 +12 -71 41.3% -0.66 5–7 (42%) 2–2 (50%) 96.4 +0.47
21 1978 1791 135.3 — — — — +3 -132 -30 52.6% +0.33 8–6 (57%) 2–6 (25%) 99.2 +2.99 1986 1636 124.5 — — — — -97 — +70 42.6% -0.57 3–5 (38%) 3–3 (50%) 100.2 -0.52
22 1979 1780 155.2 — — — — -44 -74 +25 40.5% -0.50 4–4 (50%) 1–2 (33%) 99.0 -4.03 1987 1765 138.1 — — — — -109 — +24 59.0% +0.54 4–9 (31%) 3–1 (75%) 97.8 +0.20
23 1980 1742 138.8 — — — — -89 +32 +50 52.5% +0.26 2–4 (33%) 4–3 (57%) 99.5 -4.96 1988 1703 132.8 — — — — -74 — +78 48.4% -0.06 4–8 (33%) 5–2 (71%) 97.7 -0.96
24 1981 1720 143.5 — — — — -64 +96 — 43.1% -0.39 4–6 (40%) 1–5 (17%) 96.9 -2.78 1989 1670 137.7 — — — — -24 — +87 47.4% -0.14 4–8 (33%) 2–2 (50%) 96.6 -0.43
25 1982 1820 142.9 — — — — -77 +69 -9 55.2% +0.06 11–10 (52%) 9–10 (47%) 99.8 -3.53 1990 1661 128.5 — — — — +23 — +100 49.2% -0.24 4–3 (57%) 5–1 (83%) 104.2 -0.07
26 1983 1755 138.0 — — — — +7 +104 +97 55.4% +0.20 10–11 (48%) 7–3 (70%) 100.0 +1.14 — — — — — — — — — — — — — — — —
27 1984 1801 134.8 — — — — -65 -14 +95 53.1% +0.15 5–11 (31%) 7–8 (47%) 94.0 -0.64 — — — — — — — — — — — — — — — —
28 1985 1605 125.4 — — — — +10 +114 +210 37.7% -0.97 1–10 (9%) 0–1 — -0.99 — — — — — — — — — — — — — — — —
29 1986 1565 105.1 — — — — +19 +86 +196 36.8% -0.87 2–2 (50%) 0–1 — 0.00 — — — — — — — — — — — — — — — —
30 1987 1558 108.1 — — — — — — — 25.0% -2.38 — — — -0.56 — — — — — — — — — — — — — — — —
31 1988 1542 94.0 — — — — — — — 0.0% -4.00 — — — +0.11 — — — — — — — — — — — — — — — —
Career — 1892 141.9 — — — — -33 +33 +34 50.0% -0.05 55–80 (41%) 41–47 (47%) 93.1 -1.91 — 1803 134.7 — — — — -33 -20 +14 49.1% -0.11 32–49 (40%) 25–17 (60%) 99.0 +0.19

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.