H2H data updated: 2026-10-17 00:00 UTC

Valerie Ziegenfuss vs Patricia Medrado H2H: 0-1

Patricia Medrado holds a 1–0 lead over Valerie Ziegenfuss in their WTA head-to-head. Across 1 main-draw meeting, Patricia Medrado leads 1–0 on hard courts. Most recently, Patricia Medrado won the 1978 San Diego Futures quarterfinal 6-7 6-2 6-3.

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Valerie Ziegenfuss
USA Age 77
H2H
0 – 1
1 main-draw meetings
Patricia Medrado
BRA Age 69

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Patricia Medrado 6-7 6-2 6-3 Valerie Ziegenfuss Match data Jan 7, 1978* QF San Diego Futures 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
Valerie Ziegenfuss — — — 1,954 233 233 50.0% 0 0 0 0 3 3
Patricia Medrado #359 #67 9 1,837 156 164 48.8% 0 0 0 0 10 10

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 Valerie Ziegenfuss Patricia Medrado
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1975 3–1 75.0% — 1,535 0 0
19 1968 35–24 59.3% — 1,605 0 0 1976 0–2 0.0% — 1,517 0 0
20 1969 28–24 53.8% — 1,733 0 1 1977 2–3 40.0% — 1,527 0 1
21 1970 40–28 58.8% — 1,779 0 2 1978 10–12 45.5% — 1,626 0 1
22 1971 23–29 44.2% — 1,798 0 3 1979 3–6 33.3% — 1,632 0 1
23 1972 26–24 52.0% — 1,820 0 3 1980 22–10 68.8% — 1,656 0 4
24 1973 33–29 53.2% — 1,761 0 3 1981 38–20 65.5% — 1,740 0 8
25 1974 12–14 46.2% — 1,788 0 3 1982 33–25 56.9% — 1,779 0 10
26 1975 16–16 50.0% — 1,830 0 3 1983 4–18 18.2% — 1,577 0 10
27 1976 12–20 37.5% — 1,746 0 3 1984 11–15 42.3% #108 1,588 0 10
28 1977 2–12 14.3% — 1,679 0 3 1985 8–14 36.4% #108 1,542 0 10
29 1978 5–12 29.4% — 1,651 0 3 1986 12–14 46.2% #76 1,562 0 10
30 1979 1–1 50.0% — 1,664 0 3 1987 6–13 31.6% #117 1,550 0 10
31 — — — — — — — 1988 4–11 26.7% #180 1,473 0 10

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 Valerie Ziegenfuss Patricia Medrado
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 %
18 — — — — — — — — — — — — — — — — — 1975 — — — — 3 1 4 75.0% — — — — — — — —
19 1968 5 4 9 55.6% 16 9 25 64.0% 13 9 22 59.1% 1 2 3 33.3% 1976 — — — — 0 2 2 0.0% — — — — — — — —
20 1969 5 6 11 45.5% 12 8 20 60.0% 10 8 18 55.6% 1 2 3 33.3% 1977 1 2 3 33.3% — — — — — — — — 0 1 1 0.0%
21 1970 12 7 19 63.2% 13 8 21 61.9% 12 8 20 60.0% 2 3 5 40.0% 1978 7 6 13 53.8% 3 3 6 50.0% — — — — 0 3 3 0.0%
22 1971 4 6 10 40.0% 10 7 17 58.8% 6 6 12 50.0% 3 10 13 23.1% 1979 1 1 2 50.0% 2 1 3 66.7% 0 1 1 0.0% 0 2 2 0.0%
23 1972 6 4 10 60.0% 9 7 16 56.3% 4 4 8 50.0% 7 9 16 43.8% 1980 — — — — 9 8 17 52.9% — — — — — — — —
24 1973 5 6 11 45.5% 6 6 12 50.0% 8 4 12 66.7% 12 12 24 50.0% 1981 6 5 11 54.5% 10 9 19 52.6% — — — — 0 1 1 0.0%
25 1974 3 4 7 42.9% 0 1 1 0.0% 0 1 1 0.0% 9 8 17 52.9% 1982 2 6 8 25.0% 27 9 36 75.0% 1 1 2 50.0% 3 9 12 25.0%
26 1975 8 6 14 57.1% 3 3 6 50.0% 1 1 2 50.0% 4 6 10 40.0% 1983 2 7 9 22.2% 2 6 8 25.0% 0 2 2 0.0% 0 3 3 0.0%
27 1976 3 3 6 50.0% 4 8 12 33.3% 4 4 8 50.0% 1 5 6 16.7% 1984 3 5 8 37.5% 8 7 15 53.3% 0 2 2 0.0% 0 1 1 0.0%
28 1977 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 6 8 25.0% 1985 1 5 6 16.7% 4 7 11 36.4% 0 1 1 0.0% — — — —
29 1978 2 5 7 28.6% 3 3 6 50.0% 0 2 2 0.0% 0 2 2 0.0% 1986 4 6 10 40.0% 8 6 14 57.1% 0 1 1 0.0% 0 1 1 0.0%
30 1979 1 1 2 50.0% — — — — — — — — — — — — 1987 1 4 5 20.0% 5 9 14 35.7% — — — — — — — —
31 — — — — — — — — — — — — — — — — — 1988 1 3 4 25.0% 3 7 10 30.0% 0 1 1 0.0% — — — —
Career — 54 53 107 50.5% 76 64 140 54.3% 58 48 106 54.7% 42 65 107 39.3% — 29 50 79 36.7% 84 75 159 52.8% 1 9 10 10.0% 3 21 24 12.5%

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 Valerie Ziegenfuss Patricia Medrado
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
18 — — — — — — — — — — — — — — — — 1975 1535 102.4 — — — — — +33 — 75.0% +1.25 — — — +1.03
19 1968 1605 119.1 — — — — -45 +58 +13 57.4% +0.80 9–4 (69%) — — -0.64 1976 1517 92.1 — — — — — — — 0.0% -4.25 — — — -0.02
20 1969 1734 126.4 — — — — -175 -30 +9 51.4% +0.32 6–3 (67%) — — -2.24 1977 1528 97.0 — — — — +38 — — 33.3% -2.22 0–1 1–0 — +0.68
21 1970 1780 133.1 — — — — -34 -31 +26 55.6% +0.45 11–4 (73%) 0–1 — -2.50 1978 1627 116.6 — — — — +12 -76 — 40.4% -0.75 8–2 (80%) 2–1 (67%) 109.3 +0.35
22 1971 1799 143.5 — — — — -114 +2 0 46.0% -0.35 5–8 (38%) 3–2 (60%) 99.7 -6.44 1979 1633 122.5 — — — — -19 -10 — 40.9% -1.45 1–3 (25%) 5–0 (100%) 101.8 -0.21
23 1972 1821 139.7 — — — — -47 -20 -41 48.2% +0.09 9–3 (75%) 4–4 (50%) 105.3 -5.02 1980 1657 127.1 — — — — — -77 — 64.9% +1.30 6–4 (60%) 1–4 (20%) 97.7 +0.76
24 1973 1761 143.5 — — — — -2 +54 +48 54.3% +0.18 7–9 (44%) 4–5 (44%) 95.0 -5.77 1981 1740 134.1 — — — — -99 -51 — 63.3% +1.20 7–7 (50%) 6–9 (40%) 96.3 +2.57
25 1974 1789 134.2 — — — — +8 — — 46.6% -0.29 3–3 (50%) 0–3 (0%) 97.0 -2.71 1982 1780 140.9 — — — — -182 +94 — 56.6% +0.45 6–11 (35%) 7–3 (70%) 98.9 -1.39
26 1975 1830 135.8 — — — — +53 -29 — 49.3% -0.35 6–5 (55%) 2–2 (50%) 99.8 -1.04 1983 1578 104.1 — — — — -85 +204 — 24.0% -1.80 2–4 (33%) 1–3 (25%) 94.8 +0.52
27 1976 1747 126.7 — — — — +33 -52 +32 41.1% -0.78 3–6 (33%) 3–2 (60%) 97.4 -2.73 1984 1589 120.4 — — — — -106 +162 — 48.3% -0.34 0–6 (0%) 5–3 (63%) 95.2 +0.36
28 1977 1679 124.6 — — — — +10 -23 — 16.7% -2.17 1–1 1–3 (25%) — -1.89 1985 1543 114.5 — — — — -89 +100 — 39.1% -0.22 0–2 1–3 (25%) — +0.79
29 1978 1652 127.4 — — — — -20 +24 — 36.6% -1.17 2–5 (29%) 5–1 (83%) 99.1 -1.62 1986 1562 123.2 — — — — -78 +112 — 49.2% +0.11 5–8 (38%) 5–2 (71%) 99.4 +1.15
30 1979 1664 111.0 — — — — — — — 40.0% -0.20 1–0 0–1 — -0.14 1987 1551 107.8 — — — — -104 +50 — 39.1% -0.48 2–6 (25%) 3–1 (75%) 97.0 +0.64
31 — — — — — — — — — — — — — — — — 1988 1473 104.6 — — — — -64 +64 — 31.4% -1.20 2–3 (40%) 1–1 — +1.45
Career — 1954 139.0 — — — — -28 -1 +15 49.4% -0.01 63–51 (55%) 22–24 (48%) 101.7 -7.10 — 1838 128.5 — — — — -84 +56 — 49.6% +0.05 39–57 (41%) 38–30 (56%) 96.2 +2.71

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.