H2H data updated: 2026-10-29 00:00 UTC

Marcie Louie vs Yvonne Vermaak H2H: 1-1

Marcie Louie and Yvonne Vermaak are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, Yvonne Vermaak leads 1–0 on carpet, while Marcie Louie leads 1–0 on clay. Most recently, Marcie Louie won the 1977 Indianapolis round of 16 5-7 7-5 6-1.

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Marcie Louie
USA Age 73
H2H
1 – 1
2 main-draw meetings
Yvonne Vermaak
RSA Age 69 Right-Handed 155 cm / 5'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Marcie Louie 5-7 7-5 6-1 Yvonne Vermaak Match data Aug 13, 1977* R16 Indianapolis WTA 250 Clay
Yvonne Vermaak 7-5 7-6 Marcie Louie Match data Feb 25, 1977* R32 Detroit 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
Marcie Louie — — — 1,865 103 142 42.0% 0 0 0 0 4 4
Yvonne Vermaak — #38 10 1,892 239 250 48.9% 0 0 0 0 5 5

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 Marcie Louie Yvonne Vermaak
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 1968 1–2 33.3% — 1,491 0 0 — — — — — — —
15 1969 4–1 80.0% — 1,545 0 1 — — — — — — —
16 1970 3–3 50.0% — 1,564 0 2 1973 0–2 0.0% — 1,495 0 0
17 1971 4–3 57.1% — 1,593 0 3 1974 1–2 33.3% — 1,489 0 0
18 1972 19–20 48.7% — 1,699 0 3 1975 15–12 55.6% — 1,599 0 0
19 1973 7–20 25.9% — 1,626 0 3 1976 8–10 44.4% — 1,606 0 1
20 1974 11–17 39.3% — 1,684 0 3 1977 20–14 58.8% — 1,765 0 2
21 1975 16–15 51.6% — 1,784 0 4 1978 29–23 55.8% — 1,794 0 2
22 1976 13–16 44.8% — 1,788 0 4 1979 15–23 39.5% — 1,781 0 2
23 1977 11–22 33.3% — 1,650 0 4 1980 19–19 50.0% — 1,735 0 2
24 1978 0–2 0.0% — 1,602 0 4 1981 19–28 40.4% — 1,720 0 2
25 1979 2–5 28.6% — 1,610 0 4 1982 36–27 57.1% — 1,821 0 2
26 1980 10–11 47.6% — 1,602 0 4 1983 33–26 55.9% — 1,755 0 4
27 1981 2–3 40.0% — 1,604 0 4 1984 29–28 50.9% #41 1,801 0 5
28 1982 0–2 0.0% — 1,571 0 4 1985 8–21 27.6% — 1,605 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 1,542 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 Marcie Louie Yvonne Vermaak
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 %
14 1968 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
15 1969 4 1 5 80.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
16 1970 3 3 6 50.0% — — — — — — — — — — — — 1973 0 2 2 0.0% — — — — — — — — — — — —
17 1971 2 0 2 100.0% 1 1 2 50.0% 1 2 3 33.3% — — — — 1974 1 2 3 33.3% — — — — — — — — — — — —
18 1972 1 4 5 20.0% 6 7 13 46.2% 11 6 17 64.7% 1 3 4 25.0% 1975 4 3 7 57.1% 7 4 11 63.6% 3 4 7 42.9% — — — —
19 1973 2 4 6 33.3% 2 6 8 25.0% 0 2 2 0.0% 3 8 11 27.3% 1976 1 1 2 50.0% 7 6 13 53.8% 0 2 2 0.0% 0 1 1 0.0%
20 1974 2 5 7 28.6% 2 3 5 40.0% 0 1 1 0.0% 7 8 15 46.7% 1977 3 2 5 60.0% 6 7 13 46.2% 8 2 10 80.0% 3 3 6 50.0%
21 1975 3 5 8 37.5% 9 4 13 69.2% — — — — 4 6 10 40.0% 1978 13 7 20 65.0% 2 2 4 50.0% 8 4 12 66.7% 6 10 16 37.5%
22 1976 4 3 7 57.1% 4 2 6 66.7% 1 3 4 25.0% 4 8 12 33.3% 1979 4 6 10 40.0% 4 4 8 50.0% 5 4 9 55.6% 2 9 11 18.2%
23 1977 3 5 8 37.5% 2 8 10 20.0% — — — — 5 8 13 38.5% 1980 2 5 7 28.6% 9 5 14 64.3% 4 4 8 50.0% 4 5 9 44.4%
24 1978 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — 1981 7 9 16 43.8% 11 9 20 55.0% 0 1 1 0.0% 1 9 10 10.0%
25 1979 0 2 2 0.0% — — — — 0 1 1 0.0% 1 2 3 33.3% 1982 4 4 8 50.0% 13 7 20 65.0% 9 6 15 60.0% 10 10 20 50.0%
26 1980 1 2 3 33.3% 6 3 9 66.7% 0 2 2 0.0% 1 2 3 33.3% 1983 14 4 18 77.8% 7 8 15 46.7% 8 5 13 61.5% 4 9 13 30.8%
27 1981 2 3 5 40.0% — — — — — — — — — — — — 1984 12 7 19 63.2% 7 8 15 46.7% 8 6 14 57.1% 2 7 9 22.2%
28 1982 0 2 2 0.0% — — — — — — — — — — — — 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 — 28 41 69 40.6% 32 35 67 47.8% 13 18 31 41.9% 26 45 71 36.6% — 72 64 136 52.9% 78 72 150 52.0% 55 44 99 55.6% 33 69 102 32.4%

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 Marcie Louie Yvonne Vermaak
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
14 1968 1492 100.8 — — — — +9 — — 42.9% -0.43 0–1 — — -0.04 — — — — — — — — — — — — — — — —
15 1969 1545 108.9 — — — — +74 — — 72.7% +1.73 1–0 — — +0.89 — — — — — — — — — — — — — — — —
16 1970 1565 106.0 — — — — +51 — — 46.2% +0.08 1–0 1–1 — +0.63 1973 1496 101.8 — — — — — — — 20.0% -3.20 0–1 — — -0.39
17 1971 1593 107.1 — — — — — — -48 50.0% -0.42 — — — +1.18 1974 1489 99.2 — — — — +43 — — 42.9% -0.71 0–1 — — +0.69
18 1972 1699 128.6 — — — — -98 -107 +10 47.1% -0.29 5–2 (71%) 1–2 (33%) 103.2 -3.15 1975 1599 120.1 — — — — +53 -2 -47 57.1% +0.46 3–6 (33%) 3–0 (100%) 100.2 +2.23
19 1973 1627 126.7 — — — — -36 -91 — 24.6% -1.54 3–2 (60%) 3–4 (43%) 100.9 -3.14 1976 1607 119.9 — — — — -10 +39 — 48.8% +0.09 2–5 (29%) 1–3 (25%) — +0.77
20 1974 1684 131.0 — — — — -38 -120 — 40.0% -0.75 5–4 (56%) 4–1 (80%) 105.8 -1.68 1977 1766 138.3 — — — — -80 -80 -75 58.1% +0.41 3–3 (50%) 6–5 (55%) 102.5 -0.04
21 1975 1784 141.4 — — — — -69 -51 — 49.3% -0.27 4–3 (57%) 6–1 (86%) 106.0 -0.95 1978 1794 135.9 — — — — +3 -135 -32 52.6% +0.33 8–6 (57%) 2–6 (25%) 99.2 +2.36
22 1976 1788 133.1 — — — — -63 -22 -147 45.2% -0.10 6–2 (75%) 2–7 (22%) 101.6 -2.82 1979 1781 155.4 — — — — -43 -75 +23 40.5% -0.50 4–4 (50%) 1–2 (33%) 99.0 -4.15
23 1977 1650 127.9 — — — — +26 +7 — 35.1% -1.01 6–5 (55%) 3–6 (33%) 99.4 -0.75 1980 1735 137.1 — — — — -93 +40 +57 51.2% +0.13 2–4 (33%) 4–3 (57%) 99.6 -4.28
24 1978 1602 95.4 — — — — — — — 0.0% -2.25 — — — +0.63 1981 1720 144.0 — — — — -67 +97 — 43.1% -0.39 4–6 (40%) 1–5 (17%) 97.0 -2.56
25 1979 1611 120.8 — — — — +45 — — 31.3% -1.81 1–1 — — -0.60 1982 1821 143.1 — — — — -78 +69 -9 55.2% +0.06 11–10 (52%) 9–10 (47%) 99.9 -2.99
26 1980 1603 107.9 — — — — -15 +61 — 45.7% -0.37 3–3 (50%) 0–1 — +0.85 1983 1755 138.2 — — — — +8 +105 +98 55.4% +0.20 10–11 (48%) 7–3 (70%) 100.1 +1.01
27 1981 1604 104.8 — — — — +26 — — 36.4% -1.27 1–0 2–0 — +0.26 1984 1801 135.0 — — — — -65 -14 +95 53.1% +0.15 5–11 (31%) 7–8 (47%) 94.0 -0.27
28 1982 1571 93.4 — — — — — — — 0.0% -3.00 — — — +0.13 1985 1605 125.4 — — — — +12 +115 +210 37.7% -0.97 1–10 (9%) 0–1 — -0.88
29 — — — — — — — — — — — — — — — — 1986 1566 105.2 — — — — +20 +85 +195 36.8% -0.87 2–2 (50%) 0–1 — -0.31
30 — — — — — — — — — — — — — — — — 1987 1559 108.1 — — — — — — — 25.0% -2.38 — — — -0.55
31 — — — — — — — — — — — — — — — — 1988 1542 94.0 — — — — — — — 0.0% -4.00 — — — +0.11
Career — 1866 132.7 — — — — -24 -45 -23 41.2% -0.62 36–23 (61%) 22–23 (49%) 108.5 -3.51 — 1893 142.0 — — — — -34 +34 +34 50.0% -0.06 55–80 (41%) 41–47 (47%) 93.2 -1.90

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.