H2H data updated: 2026-09-14 00:00 UTC

Karen Krantzcke vs Valerie Ziegenfuss H2H: 2-6

Valerie Ziegenfuss holds a 6–2 lead over Karen Krantzcke in their WTA head-to-head. Across 8 main-draw meetings, Valerie Ziegenfuss leads 2–1 on carpet, while they are tied 1–1 on clay. Most recently, Valerie Ziegenfuss won the 1973 Tucson round of 16 6-4 6-7 6-4.

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Karen Krantzcke
AUS Right-Handed
H2H
2 – 6
8 main-draw meetings
Valerie Ziegenfuss
USA Age 77

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Valerie Ziegenfuss 6-4 6-7 6-4 Karen Krantzcke Match data Apr 1, 1973* R16 Tucson WTA 250 Hard
Valerie Ziegenfuss 2-6 6-3 6-4 Karen Krantzcke Match data Mar 5, 1973* R16 Detroit WTA 250 Carpet
Valerie Ziegenfuss 6-4 6-3 Karen Krantzcke Match data Jan 20, 1973* R16 San Francisco WTA 250 Carpet
Karen Krantzcke 6-4 6-4 Valerie Ziegenfuss Match data May 7, 1972* R16 Indianapolis Indoors WTA 250 Carpet
Valerie Ziegenfuss 6-4 4-6 6-2 Karen Krantzcke Match data Feb 21, 1971* R16 Fort Lauderdale WTA 250 Clay
Valerie Ziegenfuss 6-3 6-4 Karen Krantzcke Match data Jul 11, 1970* SF Dublin WTA 250 Grass
Karen Krantzcke 6-3 6-2 Valerie Ziegenfuss Match data May 24, 1969* QF West Berlin WTA 250 Clay
Valerie Ziegenfuss 7-5 6-3 Karen Krantzcke Match data Jun 21, 1968* R16 Queen's Club Championships WTA 250 Grass

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
Karen Krantzcke — — — 2,016 276 174 61.3% 0 0 0 3 6 9
Valerie Ziegenfuss — — — 1,954 231 232 49.9% 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 Karen Krantzcke Valerie Ziegenfuss
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 — — — — — — — 1968 35–24 59.3% — 1,605 0 0
20 — — — — — — — 1969 28–24 53.8% — 1,733 0 1
21 1968 50–17 74.6% — 1,793 0 4 1970 40–28 58.8% — 1,779 0 2
22 1969 66–29 69.5% — 1,856 0 8 1971 23–29 44.2% — 1,798 0 3
23 1970 46–24 65.7% — 1,857 0 8 1972 26–24 52.0% — 1,820 0 3
24 1971 3–15 16.7% — 1,776 0 8 1973 33–29 53.2% — 1,761 0 3
25 1972 35–27 56.5% — 1,948 0 8 1974 12–14 46.2% — 1,788 0 3
26 1973 33–31 51.6% — 1,895 0 8 1975 16–16 50.0% — 1,830 0 3
27 1974 24–17 58.5% — 1,944 0 9 1976 12–20 37.5% — 1,746 0 3
28 1975 5–7 41.7% — 1,862 0 9 1977 2–12 14.3% — 1,677 0 3
29 1976 6–3 66.7% — 1,852 0 9 1978 3–11 21.4% — 1,654 0 3
30 1977 8–4 66.7% — 1,814 0 9 1979 1–1 50.0% — 1,667 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 Karen Krantzcke 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 %
19 — — — — — — — — — — — — — — — — — 1968 5 4 9 55.6% 16 9 25 64.0% 13 9 22 59.1% 1 2 3 33.3%
20 — — — — — — — — — — — — — — — — — 1969 5 6 11 45.5% 12 8 20 60.0% 10 8 18 55.6% 1 2 3 33.3%
21 1968 3 1 4 75.0% 10 3 13 76.9% 37 13 50 74.0% — — — — 1970 12 7 19 63.2% 13 8 21 61.9% 12 8 20 60.0% 2 3 5 40.0%
22 1969 3 2 5 60.0% 26 13 39 66.7% 37 13 50 74.0% — — — — 1971 4 6 10 40.0% 10 7 17 58.8% 6 6 12 50.0% 3 10 13 23.1%
23 1970 3 2 5 60.0% 21 10 31 67.7% 22 12 34 64.7% — — — — 1972 6 4 10 60.0% 9 7 16 56.3% 4 4 8 50.0% 7 9 16 43.8%
24 1971 0 3 3 0.0% 1 4 5 20.0% — — — — 2 8 10 20.0% 1973 5 6 11 45.5% 6 6 12 50.0% 8 4 12 66.7% 12 12 24 50.0%
25 1972 5 4 9 55.6% 8 7 15 53.3% 18 8 26 69.2% 4 8 12 33.3% 1974 3 4 7 42.9% 0 1 1 0.0% 0 1 1 0.0% 9 8 17 52.9%
26 1973 10 7 17 58.8% 8 5 13 61.5% 10 8 18 55.6% 5 11 16 31.3% 1975 8 6 14 57.1% 3 3 6 50.0% 1 1 2 50.0% 4 6 10 40.0%
27 1974 4 3 7 57.1% 4 3 7 57.1% 12 4 16 75.0% 4 7 11 36.4% 1976 3 3 6 50.0% 4 8 12 33.3% 4 4 8 50.0% 1 5 6 16.7%
28 1975 1 2 3 33.3% — — — — 3 3 6 50.0% 1 2 3 33.3% 1977 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 6 8 25.0%
29 1976 3 2 5 60.0% — — — — 3 1 4 75.0% — — — — 1978 0 4 4 0.0% 3 3 6 50.0% 0 2 2 0.0% 0 2 2 0.0%
30 1977 2 1 3 66.7% — — — — 3 2 5 60.0% — — — — 1979 1 1 2 50.0% — — — — — — — — — — — —
Career — 34 27 61 55.7% 78 45 123 63.4% 145 64 209 69.4% 16 36 52 30.8% — 52 52 104 50.0% 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 Karen Krantzcke 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
19 — — — — — — — — — — — — — — — — 1968 1605 119.1 — — — — -45 +58 +13 57.4% +0.80 9–4 (69%) — — -0.64
20 — — — — — — — — — — — — — — — — 1969 1734 126.4 — — — — -175 -30 +9 51.4% +0.32 6–3 (67%) — — -2.24
21 1968 1793 133.4 — — — — -183 -107 +112 72.8% +1.89 6–7 (46%) — — +1.15 1970 1780 133.1 — — — — -34 -31 +26 55.6% +0.45 11–4 (73%) 0–1 — -2.50
22 1969 1857 143.1 — — — — -187 -21 +117 68.3% +1.63 8–10 (44%) — — -1.74 1971 1799 143.5 — — — — -114 +2 0 46.0% -0.35 5–8 (38%) 3–2 (60%) 99.7 -6.44
23 1970 1858 144.6 — — — — -179 +43 +67 63.2% +0.86 11–8 (58%) — — -6.02 1972 1821 139.7 — — — — -47 -20 -41 48.2% +0.09 9–3 (75%) 4–4 (50%) 105.3 -5.05
24 1971 1777 136.0 — — — — -153 +69 — 29.3% -1.44 1–6 (14%) 1–4 (20%) 93.5 -3.42 1973 1761 143.5 — — — — -2 +54 +48 54.3% +0.18 7–9 (44%) 4–5 (44%) 95.0 -5.77
25 1972 1948 152.1 — — — — -221 -89 +32 56.9% +0.48 4–8 (33%) 3–2 (60%) 96.3 -8.34 1974 1789 134.2 — — — — +8 — — 46.6% -0.29 3–3 (50%) 0–3 (0%) 97.0 -2.64
26 1973 1896 154.5 — — — — -120 +24 +69 53.8% +0.30 6–11 (35%) 12–8 (60%) 97.2 -8.52 1975 1830 135.8 — — — — +53 -30 — 49.3% -0.35 6–5 (55%) 2–2 (50%) 99.8 -0.81
27 1974 1945 156.8 — — — — -111 +5 +75 61.2% +0.93 5–4 (56%) 2–2 (50%) 102.2 -5.37 1976 1746 126.6 — — — — +34 -51 +32 41.1% -0.78 3–6 (33%) 3–2 (60%) 97.3 -2.74
28 1975 1863 128.0 — — — — -9 — +52 42.9% -0.43 2–2 (50%) 3–1 (75%) 98.9 -1.26 1977 1678 124.2 — — — — +10 -22 — 16.7% -2.17 1–1 1–3 (25%) — -1.87
29 1976 1853 111.8 — — — — -25 — +106 63.2% +0.42 3–0 (100%) 1–1 — +1.15 1978 1654 130.9 — — — — -20 +22 — 29.4% -1.50 2–4 (33%) 3–1 (75%) 99.1 -2.61
30 1977 1815 117.4 — — — — +9 — +101 60.7% +0.93 3–1 (75%) 2–2 (50%) 101.2 +2.31 1979 1667 111.1 — — — — — — — 40.0% -0.20 1–0 0–1 — -0.15
Career — 2017 149.8 — — — — -135 -12 +87 61.2% +0.91 49–57 (46%) 24–20 (55%) 96.5 -6.82 — 1954 139.2 — — — — -28 -1 +15 49.3% -0.01 63–50 (56%) 20–24 (45%) 101.1 -7.31

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.