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

Marcie Louie vs Valerie Ziegenfuss H2H: 1-4

Valerie Ziegenfuss holds a 4–1 lead over Marcie Louie in their WTA head-to-head. Across 5 main-draw meetings, Valerie Ziegenfuss leads 2–1 on carpet and 2–0 on hard courts. Most recently, Valerie Ziegenfuss won the 1975 Phoenix round of 32 6-4 6-7 6-3.

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Marcie Louie
USA Age 73
H2H
1 – 4
5 main-draw meetings
Valerie Ziegenfuss
USA Age 77

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Valerie Ziegenfuss 6-4 6-7 6-3 Marcie Louie Match data Oct 9, 1975* R32 Phoenix WTA 250 Hard
Valerie Ziegenfuss 6-2 6-3 Marcie Louie Match data Jan 31, 1975* R16 Washington Open WTA 500 Hard
Marcie Louie 2-6 7-5 6-4 Valerie Ziegenfuss Match data Mar 29, 1974* R16 New York WTA 250 Carpet
Valerie Ziegenfuss 6-3 6-4 Marcie Louie Match data Mar 1, 1974* R16 Chicago WTA 250 Carpet
Valerie Ziegenfuss 6-3 6-1 Marcie Louie Match data Jan 21, 1973* QF San Francisco 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
Valerie Ziegenfuss — — — 1,954 233 233 50.0% 0 0 0 0 3 3

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 Valerie Ziegenfuss
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 — — — — — — —
17 1971 4–3 57.1% — 1,593 0 3 — — — — — — —
18 1972 19–20 48.7% — 1,699 0 3 — — — — — — —
19 1973 7–20 25.9% — 1,626 0 3 1968 35–24 59.3% — 1,605 0 0
20 1974 11–17 39.3% — 1,684 0 3 1969 28–24 53.8% — 1,733 0 1
21 1975 16–15 51.6% — 1,784 0 4 1970 40–28 58.8% — 1,779 0 2
22 1976 13–16 44.8% — 1,788 0 4 1971 23–29 44.2% — 1,798 0 3
23 1977 11–22 33.3% — 1,650 0 4 1972 26–24 52.0% — 1,820 0 3
24 1978 0–2 0.0% — 1,602 0 4 1973 33–29 53.2% — 1,761 0 3
25 1979 2–5 28.6% — 1,610 0 4 1974 12–14 46.2% — 1,788 0 3
26 1980 10–11 47.6% — 1,602 0 4 1975 16–16 50.0% — 1,830 0 3
27 1981 2–3 40.0% — 1,604 0 4 1976 12–20 37.5% — 1,746 0 3
28 1982 0–2 0.0% — 1,571 0 4 1977 2–12 14.3% — 1,679 0 3
29 — — — — — — — 1978 5–12 29.4% — 1,651 0 3
30 — — — — — — — 1979 1–1 50.0% — 1,664 0 3

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 Valerie Ziegenfuss
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% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
17 1971 2 0 2 100.0% 1 1 2 50.0% 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% — — — — — — — — — — — — — — — — —
19 1973 2 4 6 33.3% 2 6 8 25.0% 0 2 2 0.0% 3 8 11 27.3% 1968 5 4 9 55.6% 16 9 25 64.0% 13 9 22 59.1% 1 2 3 33.3%
20 1974 2 5 7 28.6% 2 3 5 40.0% 0 1 1 0.0% 7 8 15 46.7% 1969 5 6 11 45.5% 12 8 20 60.0% 10 8 18 55.6% 1 2 3 33.3%
21 1975 3 5 8 37.5% 9 4 13 69.2% — — — — 4 6 10 40.0% 1970 12 7 19 63.2% 13 8 21 61.9% 12 8 20 60.0% 2 3 5 40.0%
22 1976 4 3 7 57.1% 4 2 6 66.7% 1 3 4 25.0% 4 8 12 33.3% 1971 4 6 10 40.0% 10 7 17 58.8% 6 6 12 50.0% 3 10 13 23.1%
23 1977 3 5 8 37.5% 2 8 10 20.0% — — — — 5 8 13 38.5% 1972 6 4 10 60.0% 9 7 16 56.3% 4 4 8 50.0% 7 9 16 43.8%
24 1978 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — 1973 5 6 11 45.5% 6 6 12 50.0% 8 4 12 66.7% 12 12 24 50.0%
25 1979 0 2 2 0.0% — — — — 0 1 1 0.0% 1 2 3 33.3% 1974 3 4 7 42.9% 0 1 1 0.0% 0 1 1 0.0% 9 8 17 52.9%
26 1980 1 2 3 33.3% 6 3 9 66.7% 0 2 2 0.0% 1 2 3 33.3% 1975 8 6 14 57.1% 3 3 6 50.0% 1 1 2 50.0% 4 6 10 40.0%
27 1981 2 3 5 40.0% — — — — — — — — — — — — 1976 3 3 6 50.0% 4 8 12 33.3% 4 4 8 50.0% 1 5 6 16.7%
28 1982 0 2 2 0.0% — — — — — — — — — — — — 1977 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 6 8 25.0%
29 — — — — — — — — — — — — — — — — — 1978 2 5 7 28.6% 3 3 6 50.0% 0 2 2 0.0% 0 2 2 0.0%
30 — — — — — — — — — — — — — — — — — 1979 1 1 2 50.0% — — — — — — — — — — — —
Career — 28 41 69 40.6% 32 35 67 47.8% 13 18 31 41.9% 26 45 71 36.6% — 54 53 107 50.5% 76 64 140 54.3% 58 48 106 54.7% 42 65 107 39.3%

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 Valerie Ziegenfuss
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 — — — — — — — — — — — — — — — —
17 1971 1593 107.1 — — — — — — -48 50.0% -0.42 — — — +1.18 — — — — — — — — — — — — — — — —
18 1972 1699 128.6 — — — — -98 -107 +10 47.1% -0.29 5–2 (71%) 1–2 (33%) 103.2 -3.15 — — — — — — — — — — — — — — — —
19 1973 1627 126.7 — — — — -36 -91 — 24.6% -1.54 3–2 (60%) 3–4 (43%) 100.9 -3.14 1968 1605 119.1 — — — — -45 +58 +13 57.4% +0.80 9–4 (69%) — — -0.64
20 1974 1684 131.0 — — — — -38 -120 — 40.0% -0.75 5–4 (56%) 4–1 (80%) 105.8 -1.68 1969 1734 126.4 — — — — -175 -30 +9 51.4% +0.32 6–3 (67%) — — -2.24
21 1975 1784 141.4 — — — — -69 -51 — 49.3% -0.27 4–3 (57%) 6–1 (86%) 106.0 -0.95 1970 1780 133.1 — — — — -34 -31 +26 55.6% +0.45 11–4 (73%) 0–1 — -2.50
22 1976 1788 133.1 — — — — -63 -22 -147 45.2% -0.10 6–2 (75%) 2–7 (22%) 101.6 -2.82 1971 1799 143.5 — — — — -114 +2 0 46.0% -0.35 5–8 (38%) 3–2 (60%) 99.7 -6.44
23 1977 1650 127.9 — — — — +26 +7 — 35.1% -1.01 6–5 (55%) 3–6 (33%) 99.4 -0.75 1972 1821 139.7 — — — — -47 -20 -41 48.2% +0.09 9–3 (75%) 4–4 (50%) 105.3 -5.04
24 1978 1602 95.4 — — — — — — — 0.0% -2.25 — — — +0.63 1973 1761 143.5 — — — — -2 +54 +48 54.3% +0.18 7–9 (44%) 4–5 (44%) 95.0 -5.52
25 1979 1611 120.8 — — — — +45 — — 31.3% -1.81 1–1 — — -0.60 1974 1789 134.2 — — — — +8 — — 46.6% -0.29 3–3 (50%) 0–3 (0%) 97.0 -2.42
26 1980 1603 107.9 — — — — -15 +61 — 45.7% -0.37 3–3 (50%) 0–1 — +0.85 1975 1830 135.8 — — — — +53 -29 — 49.3% -0.35 6–5 (55%) 2–2 (50%) 99.8 -1.06
27 1981 1604 104.8 — — — — +26 — — 36.4% -1.27 1–0 2–0 — +0.26 1976 1747 126.7 — — — — +33 -52 +32 41.1% -0.78 3–6 (33%) 3–2 (60%) 97.4 -2.67
28 1982 1571 93.4 — — — — — — — 0.0% -3.00 — — — +0.13 1977 1679 124.6 — — — — +10 -23 — 16.7% -2.17 1–1 1–3 (25%) — -1.96
29 — — — — — — — — — — — — — — — — 1978 1652 127.4 — — — — -20 +24 — 36.6% -1.17 2–5 (29%) 5–1 (83%) 99.1 -1.13
30 — — — — — — — — — — — — — — — — 1979 1664 111.0 — — — — — — — 40.0% -0.20 1–0 0–1 — -0.14
Career — 1866 132.7 — — — — -24 -45 -23 41.2% -0.62 36–23 (61%) 22–23 (49%) 108.5 -3.51 — 1954 139.0 — — — — -28 -1 +15 49.4% -0.01 63–51 (55%) 22–24 (48%) 101.7 -6.89

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.