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

Julie Heldman vs Valerie Ziegenfuss H2H: 6-2

Julie Heldman holds a 6–2 lead over Valerie Ziegenfuss in their WTA head-to-head. Across 8 main-draw meetings, Julie Heldman leads 4–0 on hard courts and 2–1 on grass. Most recently, Valerie Ziegenfuss won the 1973 Jacksonville round of 16 4-6 6-4 6-4.

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Julie Heldman
USA Age 80 Right-Handed 170 cm / 5'7"
H2H
6 – 2
8 main-draw meetings
Valerie Ziegenfuss
USA Age 77

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Valerie Ziegenfuss 4-6 6-4 6-4 Julie Heldman Match data Apr 21, 1973* R16 Jacksonville WTA 250 Clay
Julie Heldman 8-2 Valerie Ziegenfuss Match data Apr 28, 1971* BR San Diego WTA 500 Hard
Valerie Ziegenfuss 6-3 3-6 6-3 Julie Heldman Match data Jul 11, 1970* QF Dublin WTA 250 Grass
Julie Heldman 6-3 6-2 Valerie Ziegenfuss Match data Jun 28, 1970* R32 Wimbledon Grand Slam Grass
Julie Heldman 6-2 6-4 Valerie Ziegenfuss Match data Sep 4, 1969* R16 US Open Grand Slam Grass
Julie Heldman 12-10 10-8 Valerie Ziegenfuss Match data Apr 6, 1969* R16 San Juan WTA 250 Hard
Julie Heldman 6-3 8-6 Valerie Ziegenfuss Match data Mar 2, 1969* QF Curacao WTA 250 Hard
Julie Heldman 1-6 6-4 6-4 Valerie Ziegenfuss Match data Mar 16, 1968* SF Caracas 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
Julie Heldman — — — 2,133 381 159 70.6% 0 0 0 0 21 21
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 Julie Heldman 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 1968 53–15 77.9% — 1,811 0 6 1971 23–29 44.2% — 1,798 0 3
23 1969 74–17 81.3% — 2,020 0 14 1972 26–24 52.0% — 1,820 0 3
24 1970 29–12 70.7% — 1,959 0 15 1973 33–29 53.2% — 1,761 0 3
25 1971 41–23 64.1% — 2,031 0 16 1974 12–14 46.2% — 1,788 0 3
26 1972 32–26 55.2% — 1,962 0 16 1975 16–16 50.0% — 1,830 0 3
27 1973 68–31 68.7% — 2,074 0 19 1976 12–20 37.5% — 1,746 0 3
28 1974 60–21 74.1% — 2,089 0 21 1977 2–12 14.3% — 1,677 0 3
29 1975 24–14 63.2% — 1,995 0 21 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 Julie Heldman 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 1968 8 3 11 72.7% 37 7 44 84.1% 5 3 8 62.5% 1 1 2 50.0% 1971 4 6 10 40.0% 10 7 17 58.8% 6 6 12 50.0% 3 10 13 23.1%
23 1969 13 3 16 81.3% 32 4 36 88.9% 9 4 13 69.2% 16 6 22 72.7% 1972 6 4 10 60.0% 9 7 16 56.3% 4 4 8 50.0% 7 9 16 43.8%
24 1970 — — — — 19 6 25 76.0% 9 5 14 64.3% 1 1 2 50.0% 1973 5 6 11 45.5% 6 6 12 50.0% 8 4 12 66.7% 12 12 24 50.0%
25 1971 6 3 9 66.7% 11 6 17 64.7% 11 4 15 73.3% 13 10 23 56.5% 1974 3 4 7 42.9% 0 1 1 0.0% 0 1 1 0.0% 9 8 17 52.9%
26 1972 5 3 8 62.5% 6 6 12 50.0% 6 6 12 50.0% 15 11 26 57.7% 1975 8 6 14 57.1% 3 3 6 50.0% 1 1 2 50.0% 4 6 10 40.0%
27 1973 10 4 14 71.4% 17 7 24 70.8% 24 6 30 80.0% 17 14 31 54.8% 1976 3 3 6 50.0% 4 8 12 33.3% 4 4 8 50.0% 1 5 6 16.7%
28 1974 — — — — 24 10 34 70.6% 21 5 26 80.8% 15 6 21 71.4% 1977 0 1 1 0.0% 0 4 4 0.0% 0 1 1 0.0% 2 6 8 25.0%
29 1975 4 3 7 57.1% 9 6 15 60.0% — — — — 11 5 16 68.8% 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 — 46 19 65 70.8% 155 52 207 74.9% 85 33 118 72.0% 89 54 143 62.2% — 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 Julie Heldman 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 1968 1811 138.4 — — — — -128 +140 -203 73.8% +2.05 10–3 (77%) — — -1.49 1971 1799 143.5 — — — — -114 +2 0 46.0% -0.35 5–8 (38%) 3–2 (60%) 99.7 -6.44
23 1969 2021 153.7 — — — — +84 +69 -264 74.9% +2.13 16–5 (76%) — — -8.73 1972 1821 139.7 — — — — -47 -20 -41 48.2% +0.09 9–3 (75%) 4–4 (50%) 105.3 -5.05
24 1970 1960 152.1 — — — — — +143 -157 70.9% +1.83 3–5 (38%) — — -3.54 1973 1761 143.5 — — — — -2 +54 +48 54.3% +0.18 7–9 (44%) 4–5 (44%) 95.0 -5.77
25 1971 2032 159.2 — — — — +11 +32 -114 62.0% +1.18 10–8 (56%) 1–3 (25%) 97.7 -6.66 1974 1789 134.2 — — — — +8 — — 46.6% -0.29 3–3 (50%) 0–3 (0%) 97.0 -2.64
26 1972 1963 153.4 — — — — +119 +20 -75 55.3% +0.34 7–9 (44%) 4–0 (100%) 98.9 -9.20 1975 1830 135.8 — — — — +53 -30 — 49.3% -0.35 6–5 (55%) 2–2 (50%) 99.8 -0.81
27 1973 2075 159.9 — — — — -31 -45 +40 66.5% +1.41 12–9 (57%) 2–8 (20%) 97.9 -10.33 1976 1746 126.6 — — — — +34 -51 +32 41.1% -0.78 3–6 (33%) 3–2 (60%) 97.3 -2.74
28 1974 2090 159.9 — — — — -2 -3 +79 69.7% +1.48 11–6 (65%) 5–5 (50%) 102.8 -5.94 1977 1678 124.2 — — — — +10 -22 — 16.7% -2.17 1–1 1–3 (25%) — -1.87
29 1975 1995 149.5 — — — — +96 -22 — 59.0% +0.87 6–3 (67%) 2–2 (50%) 98.1 -3.41 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 — 2134 158.8 — — — — +33 +56 -56 67.3% +1.47 75–48 (61%) 14–18 (44%) 100.6 -9.28 — 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.