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

Valerie Ziegenfuss vs Mary Penn H2H: 1-0

Valerie Ziegenfuss holds a 1–0 lead over Mary Penn in their WTA head-to-head. Across 1 main-draw meeting, Valerie Ziegenfuss leads 1–0 on grass. Most recently, Valerie Ziegenfuss won the 1968 Manchester round of 32 6-3 6-1.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Valerie Ziegenfuss
USA Age 77
H2H
1 – 0
1 main-draw meetings
Mary Penn
GBR

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Valerie Ziegenfuss 6-3 6-1 Mary Penn Match data Jun 7, 1968* R32 Manchester 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
Valerie Ziegenfuss — — — 1,954 231 232 49.9% 0 0 0 0 3 3
Mary Penn — — — 1,500 0 1 0.0% 0 0 0 0 0 0

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.

Valerie Ziegenfuss Mary Penn
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 35–24 59.3% — 1,605 0 0 1968 0–1 0.0% — 1,489 0 0
1969 28–24 53.8% — 1,733 0 1 — — — — — — —
1970 40–28 58.8% — 1,779 0 2 — — — — — — —
1971 23–29 44.2% — 1,798 0 3 — — — — — — —
1972 26–24 52.0% — 1,820 0 3 — — — — — — —
1973 33–29 53.2% — 1,761 0 3 — — — — — — —
1974 12–14 46.2% — 1,788 0 3 — — — — — — —
1975 16–16 50.0% — 1,830 0 3 — — — — — — —
1976 12–20 37.5% — 1,746 0 3 — — — — — — —
1977 2–12 14.3% — 1,677 0 3 — — — — — — —
1978 3–11 21.4% — 1,654 0 3 — — — — — — —
1979 1–1 50.0% — 1,667 0 3 — — — — — — —

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Valerie Ziegenfuss Mary Penn
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 %
1968 5 4 9 55.6% 16 9 25 64.0% 13 9 22 59.1% 1 2 3 33.3% 1968 — — — — — — — — 0 1 1 0.0% — — — —
1969 5 6 11 45.5% 12 8 20 60.0% 10 8 18 55.6% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
1970 12 7 19 63.2% 13 8 21 61.9% 12 8 20 60.0% 2 3 5 40.0% — — — — — — — — — — — — — — — — —
1971 4 6 10 40.0% 10 7 17 58.8% 6 6 12 50.0% 3 10 13 23.1% — — — — — — — — — — — — — — — — —
1972 6 4 10 60.0% 9 7 16 56.3% 4 4 8 50.0% 7 9 16 43.8% — — — — — — — — — — — — — — — — —
1973 5 6 11 45.5% 6 6 12 50.0% 8 4 12 66.7% 12 12 24 50.0% — — — — — — — — — — — — — — — — —
1974 3 4 7 42.9% 0 1 1 0.0% 0 1 1 0.0% 9 8 17 52.9% — — — — — — — — — — — — — — — — —
1975 8 6 14 57.1% 3 3 6 50.0% 1 1 2 50.0% 4 6 10 40.0% — — — — — — — — — — — — — — — — —
1976 3 3 6 50.0% 4 8 12 33.3% 4 4 8 50.0% 1 5 6 16.7% — — — — — — — — — — — — — — — — —
1977 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 6 8 25.0% — — — — — — — — — — — — — — — — —
1978 0 4 4 0.0% 3 3 6 50.0% 0 2 2 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
1979 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 52 52 104 50.0% 76 64 140 54.3% 58 48 106 54.7% 42 65 107 39.3% Career — — — — — — — — 0 1 1 0.0% — — — —

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Valerie Ziegenfuss Mary Penn
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
1968 1605 119.1 — — — — -45 +58 +13 57.4% +0.80 9–4 (69%) — — -0.64 1968 1490 96.1 — — — — — — — 0.0% -4.00 — — — -0.10
1969 1734 126.4 — — — — -175 -30 +9 51.4% +0.32 6–3 (67%) — — -2.24 — — — — — — — — — — — — — — — —
1970 1780 133.1 — — — — -34 -31 +26 55.6% +0.45 11–4 (73%) 0–1 — -2.50 — — — — — — — — — — — — — — — —
1971 1799 143.5 — — — — -114 +2 0 46.0% -0.35 5–8 (38%) 3–2 (60%) 99.7 -6.44 — — — — — — — — — — — — — — — —
1972 1821 139.7 — — — — -47 -20 -41 48.2% +0.09 9–3 (75%) 4–4 (50%) 105.3 -5.05 — — — — — — — — — — — — — — — —
1973 1761 143.5 — — — — -2 +54 +48 54.3% +0.18 7–9 (44%) 4–5 (44%) 95.0 -5.77 — — — — — — — — — — — — — — — —
1974 1789 134.2 — — — — +8 — — 46.6% -0.29 3–3 (50%) 0–3 (0%) 97.0 -2.64 — — — — — — — — — — — — — — — —
1975 1830 135.8 — — — — +53 -30 — 49.3% -0.35 6–5 (55%) 2–2 (50%) 99.8 -0.81 — — — — — — — — — — — — — — — —
1976 1746 126.6 — — — — +34 -51 +32 41.1% -0.78 3–6 (33%) 3–2 (60%) 97.3 -2.74 — — — — — — — — — — — — — — — —
1977 1678 124.2 — — — — +10 -22 — 16.7% -2.17 1–1 1–3 (25%) — -1.87 — — — — — — — — — — — — — — — —
1978 1654 130.9 — — — — -20 +22 — 29.4% -1.50 2–4 (33%) 3–1 (75%) 99.1 -2.61 — — — — — — — — — — — — — — — —
1979 1667 111.1 — — — — — — — 40.0% -0.20 1–0 0–1 — -0.15 — — — — — — — — — — — — — — — —
Career 1954 139.2 — — — — -28 -1 +15 49.3% -0.01 63–50 (56%) 20–24 (45%) 101.1 -7.31 Career 1500 97.9 — — — — — — — 0.0% -4.00 — — — -10.00

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.