H2H data updated: 2026-09-13 00:00 UTC

Kerry Harris vs Valerie Ziegenfuss H2H: 1-1

Kerry Harris and Valerie Ziegenfuss are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, Kerry Harris leads 1–0 on carpet, while Valerie Ziegenfuss leads 1–0 on grass. Most recently, Kerry Harris won the 1973 Jersey Shore round of 16 5-7 7-6 6-4.

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Kerry Harris
AUS Age 76
H2H
1 – 1
2 main-draw meetings
Valerie Ziegenfuss
USA Age 77

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kerry Harris 5-7 7-6 6-4 Valerie Ziegenfuss Match data Aug 17, 1973* R16 Jersey Shore WTA 250 Carpet
Valerie Ziegenfuss 6-4 3-6 6-4 Kerry Harris Match data Jun 20, 1968* R32 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
Kerry Harris — — — 1,858 142 152 48.3% 0 0 0 0 1 1
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 Kerry Harris Valerie Ziegenfuss
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 1968 12–20 37.5% — 1,448 0 0 — — — — — — —
19 1969 37–27 57.8% — 1,668 0 0 1968 35–24 59.3% — 1,605 0 0
20 1970 11–21 34.4% — 1,542 0 0 1969 28–24 53.8% — 1,733 0 1
21 1971 32–24 57.1% — 1,737 0 1 1970 40–28 58.8% — 1,779 0 2
22 1972 21–23 47.7% — 1,699 0 1 1971 23–29 44.2% — 1,798 0 3
23 1973 24–23 51.1% — 1,841 0 1 1972 26–24 52.0% — 1,820 0 3
24 1974 5–13 27.8% — 1,779 0 1 1973 33–29 53.2% — 1,761 0 3
25 1975 0–1 0.0% — 1,760 0 1 1974 12–14 46.2% — 1,788 0 3
26 — — — — — — — 1975 16–16 50.0% — 1,830 0 3
27 — — — — — — — 1976 12–20 37.5% — 1,746 0 3
28 — — — — — — — 1977 2–12 14.3% — 1,677 0 3
29 — — — — — — — 1978 3–11 21.4% — 1,654 0 3
30 — — — — — — — 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 Kerry Harris 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 %
18 1968 — — — — 8 13 21 38.1% 4 7 11 36.4% — — — — — — — — — — — — — — — — — — — — —
19 1969 5 5 10 50.0% 11 8 19 57.9% 21 14 35 60.0% — — — — 1968 5 4 9 55.6% 16 9 25 64.0% 13 9 22 59.1% 1 2 3 33.3%
20 1970 1 3 4 25.0% 3 8 11 27.3% 7 10 17 41.2% — — — — 1969 5 6 11 45.5% 12 8 20 60.0% 10 8 18 55.6% 1 2 3 33.3%
21 1971 7 4 11 63.6% 8 9 17 47.1% 17 11 28 60.7% — — — — 1970 12 7 19 63.2% 13 8 21 61.9% 12 8 20 60.0% 2 3 5 40.0%
22 1972 2 4 6 33.3% 7 9 16 43.8% 12 7 19 63.2% 0 3 3 0.0% 1971 4 6 10 40.0% 10 7 17 58.8% 6 6 12 50.0% 3 10 13 23.1%
23 1973 4 5 9 44.4% 4 6 10 40.0% 8 6 14 57.1% 8 6 14 57.1% 1972 6 4 10 60.0% 9 7 16 56.3% 4 4 8 50.0% 7 9 16 43.8%
24 1974 0 2 2 0.0% 1 4 5 20.0% 4 5 9 44.4% 0 2 2 0.0% 1973 5 6 11 45.5% 6 6 12 50.0% 8 4 12 66.7% 12 12 24 50.0%
25 1975 — — — — — — — — 0 1 1 0.0% — — — — 1974 3 4 7 42.9% 0 1 1 0.0% 0 1 1 0.0% 9 8 17 52.9%
26 — — — — — — — — — — — — — — — — — 1975 8 6 14 57.1% 3 3 6 50.0% 1 1 2 50.0% 4 6 10 40.0%
27 — — — — — — — — — — — — — — — — — 1976 3 3 6 50.0% 4 8 12 33.3% 4 4 8 50.0% 1 5 6 16.7%
28 — — — — — — — — — — — — — — — — — 1977 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 6 8 25.0%
29 — — — — — — — — — — — — — — — — — 1978 0 4 4 0.0% 3 3 6 50.0% 0 2 2 0.0% 0 2 2 0.0%
30 — — — — — — — — — — — — — — — — — 1979 1 1 2 50.0% — — — — — — — — — — — —
Career — 19 23 42 45.2% 42 57 99 42.4% 73 61 134 54.5% 8 11 19 42.1% — 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 Kerry Harris 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
18 1968 1449 98.2 — — — — — -32 +33 38.5% -1.01 1–5 (17%) — — +0.51 — — — — — — — — — — — — — — — —
19 1969 1668 126.0 — — — — -80 -83 +59 54.7% +0.21 16–10 (62%) — — -1.22 1968 1605 119.1 — — — — -45 +58 +13 57.4% +0.80 9–4 (69%) — — -0.64
20 1970 1542 110.2 — — — — +2 -22 +69 40.0% -0.65 3–8 (27%) — — +0.98 1969 1734 126.4 — — — — -175 -30 +9 51.4% +0.32 6–3 (67%) — — -2.24
21 1971 1738 135.8 — — — — -41 -144 +24 55.1% +0.52 13–11 (54%) 2–9 (18%) 97.4 +1.32 1970 1780 133.1 — — — — -34 -31 +26 55.6% +0.45 11–4 (73%) 0–1 — -2.50
22 1972 1700 128.9 — — — — -118 -111 +127 49.0% -0.14 5–7 (42%) 4–5 (44%) 98.6 -1.25 1971 1799 143.5 — — — — -114 +2 0 46.0% -0.35 5–8 (38%) 3–2 (60%) 99.7 -6.44
23 1973 1841 151.6 — — — — -35 -235 +37 49.5% -0.40 8–5 (62%) 8–2 (80%) 107.9 -6.57 1972 1821 139.7 — — — — -47 -20 -41 48.2% +0.09 9–3 (75%) 4–4 (50%) 105.3 -5.05
24 1974 1780 140.7 — — — — -33 -181 +80 40.5% -0.74 1–7 (13%) 2–2 (50%) 94.0 -3.04 1973 1761 143.5 — — — — -2 +54 +48 54.3% +0.18 7–9 (44%) 4–5 (44%) 95.0 -5.77
25 1975 1761 101.3 — — — — — — — 33.3% -0.33 0–1 0–1 — -0.03 1974 1789 134.2 — — — — +8 — — 46.6% -0.29 3–3 (50%) 0–3 (0%) 97.0 -2.64
26 — — — — — — — — — — — — — — — — 1975 1830 135.8 — — — — +53 -30 — 49.3% -0.35 6–5 (55%) 2–2 (50%) 99.8 -0.81
27 — — — — — — — — — — — — — — — — 1976 1746 126.6 — — — — +34 -51 +32 41.1% -0.78 3–6 (33%) 3–2 (60%) 97.3 -2.74
28 — — — — — — — — — — — — — — — — 1977 1678 124.2 — — — — +10 -22 — 16.7% -2.17 1–1 1–3 (25%) — -1.87
29 — — — — — — — — — — — — — — — — 1978 1654 130.9 — — — — -20 +22 — 29.4% -1.50 2–4 (33%) 3–1 (75%) 99.1 -2.61
30 — — — — — — — — — — — — — — — — 1979 1667 111.1 — — — — — — — 40.0% -0.20 1–0 0–1 — -0.15
Career — 1858 133.5 — — — — -53 -101 +60 49.0% -0.15 47–54 (47%) 16–19 (46%) 97.5 -3.20 — 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.