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

Nancy Richey vs Valerie Ziegenfuss H2H: 11-1 (incl. walkovers)

Nancy Richey vs Valerie Ziegenfuss: 11–0 excluding walkovers; 11–1 including 1 walkover. Across 12 main-draw results including walkovers, Nancy Richey leads 5–0 on hard courts and 3–0 on carpet. Most recently, Nancy Richey won the 1975 Phoenix quarterfinal 4-6 6-3 6-3.

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

Nancy Richey
USA Age 84 Right-Handed 160 cm / 5'3"
H2H including walkovers
11 – 1
12 main-draw results
Valerie Ziegenfuss
USA Age 77

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Nancy Richey 4-6 6-3 6-3 Valerie Ziegenfuss Match data Oct 11, 1975* QF Phoenix WTA 250 Hard
Nancy Richey 2-6 6-2 6-4 Valerie Ziegenfuss Match data Apr 2, 1973* SF Tucson WTA 250 Hard
Nancy Richey 6-2 6-3 Valerie Ziegenfuss Match data Aug 19, 1972* SF Denver WTA 250 Hard
Valerie Ziegenfuss (w/o) Nancy Richey Match data Aug 6, 1972* QF Columbus WTA 250 Clay
Nancy Richey 6-1 6-4 Valerie Ziegenfuss Match data Aug 8, 1971* R16 Houston WTA 250 Carpet
Nancy Richey 6-1 6-2 Valerie Ziegenfuss Match data Jan 10, 1971* R16 San Francisco WTA 250 Carpet
Nancy Richey 6-2 6-4 Valerie Ziegenfuss Match data Oct 2, 1970* R16 San Francisco WTA 250 Hard
Nancy Richey 6-2 6-4 Valerie Ziegenfuss Match data May 9, 1970* SF Sacramento WTA 250 Hard
Nancy Richey 6-1 6-3 Valerie Ziegenfuss Match data Mar 29, 1970* F Jacksonville WTA 250 Clay
Nancy Richey 6-4 6-1 Valerie Ziegenfuss Match data Mar 2, 1970* QF Boston WTA 250 Carpet
Nancy Richey 6-4 6-1 Valerie Ziegenfuss Match data Jun 22, 1968* QF Queen's Club Championships WTA 250 Grass
Nancy Richey 8-6 6-3 Valerie Ziegenfuss Match data Mar 23, 1968* SF Curacao WTA 250 Clay

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
Nancy Richey — #8 — 2,245 324 109 74.8% 1 0 0 2 19 22
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 Nancy Richey 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 — — — — — — — 1970 40–28 58.8% — 1,779 0 2
22 — — — — — — — 1971 23–29 44.2% — 1,798 0 3
23 — — — — — — — 1972 26–24 52.0% — 1,820 0 3
24 — — — — — — — 1973 33–29 53.2% — 1,761 0 3
25 1968 56–5 91.8% — 1,916 1 4 1974 12–14 46.2% — 1,788 0 3
26 1969 33–8 80.5% — 2,054 1 7 1975 16–16 50.0% — 1,830 0 3
27 1970 43–8 84.3% — 2,122 1 14 1976 12–20 37.5% — 1,746 0 3
28 1971 29–13 69.0% — 2,076 1 14 1977 2–12 14.3% — 1,677 0 3
29 1972 45–12 78.9% — 2,194 1 19 1978 3–11 21.4% — 1,654 0 3
30 1973 34–13 72.3% — 2,191 1 19 1979 1–1 50.0% — 1,667 0 3
31 1974 25–13 65.8% — 2,151 1 19 — — — — — — —
32 1975 24–11 68.6% #8 2,120 1 20 — — — — — — —
33 1976 14–10 58.3% — 2,084 1 20 — — — — — — —
34 1977 15–7 68.2% — 2,016 1 22 — — — — — — —
35 1978 6–9 40.0% — 1,922 1 22 — — — — — — —

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 Nancy Richey 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 — — — — — — — — — — — — — — — — — 1970 12 7 19 63.2% 13 8 21 61.9% 12 8 20 60.0% 2 3 5 40.0%
22 — — — — — — — — — — — — — — — — — 1971 4 6 10 40.0% 10 7 17 58.8% 6 6 12 50.0% 3 10 13 23.1%
23 — — — — — — — — — — — — — — — — — 1972 6 4 10 60.0% 9 7 16 56.3% 4 4 8 50.0% 7 9 16 43.8%
24 — — — — — — — — — — — — — — — — — 1973 5 6 11 45.5% 6 6 12 50.0% 8 4 12 66.7% 12 12 24 50.0%
25 1968 5 1 6 83.3% 35 3 38 92.1% 9 1 10 90.0% 4 0 4 100.0% 1974 3 4 7 42.9% 0 1 1 0.0% 0 1 1 0.0% 9 8 17 52.9%
26 1969 15 4 19 78.9% 9 2 11 81.8% 9 2 11 81.8% — — — — 1975 8 6 14 57.1% 3 3 6 50.0% 1 1 2 50.0% 4 6 10 40.0%
27 1970 9 0 9 100.0% 26 5 31 83.9% 4 1 5 80.0% 4 2 6 66.7% 1976 3 3 6 50.0% 4 8 12 33.3% 4 4 8 50.0% 1 5 6 16.7%
28 1971 8 4 12 66.7% 7 2 9 77.8% 6 2 8 75.0% 8 5 13 61.5% 1977 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 6 8 25.0%
29 1972 11 1 12 91.7% 16 6 22 72.7% 5 2 7 71.4% 13 3 16 81.3% 1978 0 4 4 0.0% 3 3 6 50.0% 0 2 2 0.0% 0 2 2 0.0%
30 1973 12 3 15 80.0% 11 4 15 73.3% 2 1 3 66.7% 9 5 14 64.3% 1979 1 1 2 50.0% — — — — — — — — — — — —
31 1974 12 7 19 63.2% 3 1 4 75.0% 3 1 4 75.0% 7 4 11 63.6% — — — — — — — — — — — — — — — — —
32 1975 11 3 14 78.6% 5 3 8 62.5% 0 1 1 0.0% 8 4 12 66.7% — — — — — — — — — — — — — — — — —
33 1976 4 4 8 50.0% 3 2 5 60.0% — — — — 7 4 11 63.6% — — — — — — — — — — — — — — — — —
34 1977 0 1 1 0.0% 9 4 13 69.2% — — — — 0 2 2 0.0% — — — — — — — — — — — — — — — — —
35 1978 0 1 1 0.0% 1 2 3 33.3% — — — — 5 6 11 45.5% — — — — — — — — — — — — — — — — —
Career — 87 29 116 75.0% 125 34 159 78.6% 38 11 49 77.6% 65 35 100 65.0% — 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 Nancy Richey 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 — — — — — — — — — — — — — — — — 1970 1780 133.1 — — — — -34 -31 +26 55.6% +0.45 11–4 (73%) 0–1 — -2.50
22 — — — — — — — — — — — — — — — — 1971 1799 143.5 — — — — -114 +2 0 46.0% -0.35 5–8 (38%) 3–2 (60%) 99.7 -6.44
23 — — — — — — — — — — — — — — — — 1972 1821 139.7 — — — — -47 -20 -41 48.2% +0.09 9–3 (75%) 4–4 (50%) 105.3 -5.05
24 — — — — — — — — — — — — — — — — 1973 1761 143.5 — — — — -2 +54 +48 54.3% +0.18 7–9 (44%) 4–5 (44%) 95.0 -5.77
25 1968 1916 145.6 — — — — -119 +83 -174 87.6% +3.09 10–1 (91%) — — -0.10 1974 1789 134.2 — — — — +8 — — 46.6% -0.29 3–3 (50%) 0–3 (0%) 97.0 -2.64
26 1969 2054 151.8 — — — — +32 -32 -127 77.3% +1.99 6–2 (75%) — — -3.41 1975 1830 135.8 — — — — +53 -30 — 49.3% -0.35 6–5 (55%) 2–2 (50%) 99.8 -0.81
27 1970 2123 162.9 — — — — +60 -35 -127 80.0% +2.51 6–2 (75%) 1–0 — -4.02 1976 1746 126.6 — — — — +34 -51 +32 41.1% -0.78 3–6 (33%) 3–2 (60%) 97.3 -2.74
28 1971 2077 156.0 — — — — +22 +31 -94 65.1% +1.50 4–4 (50%) 3–5 (38%) 97.6 -3.59 1977 1678 124.2 — — — — +10 -22 — 16.7% -2.17 1–1 1–3 (25%) — -1.87
29 1972 2194 166.6 — — — — +186 -41 -224 79.6% +2.43 5–4 (56%) 4–3 (57%) 101.6 -6.67 1978 1654 130.9 — — — — -20 +22 — 29.4% -1.50 2–4 (33%) 3–1 (75%) 99.1 -2.61
30 1973 2192 164.0 — — — — +123 -6 -220 67.6% +1.24 9–7 (56%) 7–3 (70%) 101.3 -7.33 1979 1667 111.1 — — — — — — — 40.0% -0.20 1–0 0–1 — -0.15
31 1974 2152 156.5 — — — — +112 +19 -165 68.9% +1.60 7–3 (70%) 3–3 (50%) 99.8 -3.90 — — — — — — — — — — — — — — — —
32 1975 2121 155.3 — — — — +105 -19 — 65.8% +1.55 8–4 (67%) 2–6 (25%) 96.2 -2.17 — — — — — — — — — — — — — — — —
33 1976 2085 155.1 — — — — +132 -40 — 60.0% +0.82 4–4 (50%) 1–2 (33%) 96.6 -4.18 — — — — — — — — — — — — — — — —
34 1977 2016 146.8 — — — — +91 +43 — 64.6% +1.42 3–3 (50%) 3–3 (50%) 96.9 -1.27 — — — — — — — — — — — — — — — —
35 1978 1923 136.5 — — — — +56 +55 — 45.5% -0.24 0–3 (0%) 2–1 (67%) 95.2 -2.03 — — — — — — — — — — — — — — — —
Career — 2245 164.5 — — — — +89 +9 -154 72.7% +1.89 62–37 (63%) 26–26 (50%) 100.3 -9.27 — 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.