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

Dianne Fromholtz vs Mary Lou Piatek H2H: 5-0

Dianne Fromholtz holds a 5–0 lead over Mary Lou Piatek in their WTA head-to-head. Across 5 main-draw meetings, Dianne Fromholtz leads 2–0 on carpet and 2–0 on grass. Most recently, Dianne Fromholtz won the 1986 Worcester round of 64 6-0 6-3.

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Dianne Fromholtz
AUS Age 70 Left-Handed 163 cm / 5'4"
H2H
5 – 0
5 main-draw meetings
Mary Lou Piatek
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Dianne Fromholtz #30 6-0 6-3 Mary Lou Piatek Match data Jan 15, 1986* R64 Worcester WTA 250 Carpet
Dianne Fromholtz 6-4 6-1 Mary Lou Piatek Match data Nov 14, 1984* R64 Brisbane International WTA 500 Grass
Dianne Fromholtz 6-1 7-6 Mary Lou Piatek Match data Sep 2, 1982* R128 US Open Grand Slam Hard
Dianne Fromholtz 6-4 6-0 Mary Lou Piatek Match data Jun 18, 1980* R64 Eastbourne Open WTA 250 Grass
Dianne Fromholtz 6-2 6-1 Mary Lou Piatek Match data Jan 25, 1980* R16 Chicago WTA 250 Carpet

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
Dianne Fromholtz #306 #5 34 2,181 466 282 62.3% 0 0 0 2 20 22
Mary Lou Piatek — — — 1,931 153 206 42.6% 0 0 0 0 2 2

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.

Dianne Fromholtz Mary Lou Piatek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1971 0–1 0.0% — 1,487 0 0 1978 0–1 0.0% — 1,499 0 0
1972 7–7 50.0% — 1,545 0 0 1979 3–5 37.5% — 1,546 0 0
1973 57–13 81.4% — 1,910 0 12 1980 16–12 57.1% — 1,734 0 0
1974 52–20 72.2% — 1,971 0 16 1981 30–22 57.7% — 1,869 0 1
1975 34–29 54.0% — 1,903 0 16 1982 18–21 46.2% — 1,791 0 1
1976 39–13 75.0% #5 2,069 0 19 1983 12–20 37.5% — 1,720 0 1
1977 32–18 64.0% #8 2,077 0 19 1984 18–20 47.4% — 1,703 0 2
1978 28–13 68.3% #10 2,076 0 21 1985 14–18 43.8% — 1,677 0 2
1979 57–27 67.9% #6 2,015 0 22 1986 8–15 34.8% — 1,618 0 2
1980 46–21 68.7% — 2,013 0 22 1987 6–12 33.3% — 1,594 0 2
1981 13–19 40.6% — 1,739 0 22 1988 6–16 27.3% — 1,542 0 2
1982 16–15 51.6% — 1,785 0 22 1989 7–15 31.8% — 1,592 0 2
1983 7–13 35.0% — 1,690 0 22 1990 8–11 42.1% — 1,611 0 2
1984 3–3 50.0% #138 1,717 0 22 1991 5–8 38.5% — 1,629 0 2
1985 17–17 50.0% #97 1,793 0 22 1992 1–8 11.1% — 1,559 0 2
1986 19–14 57.6% #25 1,836 0 22 1993 1–2 33.3% — 1,554 0 2
1987 19–13 59.4% #21 1,863 0 22 — — — — — — —
1988 14–14 50.0% #56 1,754 0 22 — — — — — — —
1989 6–10 37.5% #131 1,676 0 22 — — — — — — —
1990 0–2 0.0% #306 1,633 0 22 — — — — — — —

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.

Dianne Fromholtz Mary Lou Piatek
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 %
1971 — — — — — — — — 0 1 1 0.0% — — — — 1978 — — — — — — — — — — — — 0 1 1 0.0%
1972 — — — — 3 2 5 60.0% 4 4 8 50.0% — — — — 1979 1 1 2 50.0% 0 1 1 0.0% — — — — 2 3 5 40.0%
1973 — — — — 26 2 28 92.9% 30 11 41 73.2% — — — — 1980 5 3 8 62.5% 3 1 4 75.0% 0 2 2 0.0% 8 6 14 57.1%
1974 14 2 16 87.5% 13 7 20 65.0% 19 9 28 67.9% 0 2 2 0.0% 1981 15 5 20 75.0% 6 4 10 60.0% 4 6 10 40.0% 5 7 12 41.7%
1975 8 8 16 50.0% 22 12 34 64.7% 1 3 4 25.0% 3 6 9 33.3% 1982 4 5 9 44.4% 0 3 3 0.0% 1 2 3 33.3% 13 11 24 54.2%
1976 5 2 7 71.4% 10 1 11 90.9% 14 5 19 73.7% 9 5 14 64.3% 1983 5 6 11 45.5% 1 4 5 20.0% 0 2 2 0.0% 6 8 14 42.9%
1977 8 5 13 61.5% 4 2 6 66.7% 10 5 15 66.7% 10 6 16 62.5% 1984 9 8 17 52.9% 0 1 1 0.0% 5 6 11 45.5% 4 5 9 44.4%
1978 4 4 8 50.0% — — — — 17 3 20 85.0% 7 6 13 53.8% 1985 7 11 18 38.9% 2 1 3 66.7% 1 2 3 33.3% 4 4 8 50.0%
1979 13 9 22 59.1% 8 3 11 72.7% 7 4 11 63.6% 29 11 40 72.5% 1986 5 5 10 50.0% 0 2 2 0.0% 1 2 3 33.3% 2 6 8 25.0%
1980 9 4 13 69.2% 4 1 5 80.0% 6 2 8 75.0% 27 14 41 65.9% 1987 3 5 8 37.5% 0 2 2 0.0% 0 2 2 0.0% 3 3 6 50.0%
1981 2 3 5 40.0% 9 9 18 50.0% 1 4 5 20.0% 1 2 3 33.3% 1988 4 9 13 30.8% 1 4 5 20.0% 0 1 1 0.0% 1 2 3 33.3%
1982 4 5 9 44.4% 3 2 5 60.0% 2 2 4 50.0% 7 6 13 53.8% 1989 7 9 16 43.8% 0 3 3 0.0% 0 2 2 0.0% 0 1 1 0.0%
1983 0 3 3 0.0% 6 5 11 54.5% 0 1 1 0.0% 1 4 5 20.0% 1990 4 5 9 44.4% 3 3 6 50.0% 0 1 1 0.0% 1 2 3 33.3%
1984 — — — — — — — — 3 3 6 50.0% — — — — 1991 5 5 10 50.0% 0 2 2 0.0% — — — — 0 1 1 0.0%
1985 8 6 14 57.1% 0 2 2 0.0% 9 6 15 60.0% 0 3 3 0.0% 1992 0 6 6 0.0% 1 1 2 50.0% 0 1 1 0.0% — — — —
1986 9 6 15 60.0% — — — — 5 3 8 62.5% 5 5 10 50.0% 1993 1 2 3 33.3% — — — — — — — — — — — —
1987 6 3 9 66.7% 1 2 3 33.3% 9 5 14 64.3% 3 3 6 50.0% — — — — — — — — — — — — — — — — —
1988 9 10 19 47.4% — — — — 4 3 7 57.1% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
1989 5 8 13 38.5% — — — — 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
1990 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 104 80 184 56.5% 109 50 159 68.6% 142 76 218 65.1% 103 74 177 58.2% Career 75 85 160 46.9% 17 32 49 34.7% 12 29 41 29.3% 49 60 109 45.0%

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.

Dianne Fromholtz Mary Lou Piatek
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
1971 1488 95.6 — — — — — — — 0.0% -4.50 — — — +0.21 1978 1499 106.8 — — — — — — — 0.0% -3.50 — — — -0.12
1972 1546 117.1 — — — — — +12 +28 53.3% 0.00 0–2 3–1 (75%) — +0.81 1979 1547 118.2 — — — — +97 — — 42.1% -0.89 1–2 (33%) 0–1 — +0.14
1973 1910 143.9 — — — — — +42 -25 74.7% +1.75 13–3 (81%) 5–2 (71%) 111.9 +5.78 1980 1735 137.7 — — — — +8 -158 — 55.7% +0.51 3–2 (60%) 1–0 — -0.18
1974 1972 156.1 — — — — -99 -39 -12 69.8% +1.51 10–7 (59%) 8–4 (67%) 105.3 -4.10 1981 1869 146.1 — — — — +63 -192 -295 56.7% +0.48 8–10 (44%) 6–5 (55%) 101.1 -3.04
1975 1904 154.9 — — — — -41 +47 -26 53.8% +0.55 8–6 (57%) 2–8 (20%) 95.3 -8.56 1982 1792 141.6 — — — — +56 -194 -210 47.1% -0.08 4–5 (44%) 2–3 (40%) 96.7 -0.75
1976 2070 160.7 — — — — -35 -42 -62 70.3% +1.52 9–7 (56%) 2–3 (40%) 101.1 -4.76 1983 1721 143.7 — — — — +53 -86 — 41.3% -0.43 4–7 (36%) 0–5 (0%) 91.3 -3.81
1977 2077 161.3 — — — — -7 -60 -13 61.5% +0.94 8–7 (53%) 6–4 (60%) 100.5 -4.48 1984 1703 128.4 — — — — -13 — -69 47.7% -0.47 5–5 (50%) 4–3 (57%) 101.0 -0.69
1978 2076 150.6 — — — — -68 — +76 65.6% +0.99 9–3 (75%) 4–3 (57%) 103.8 -3.03 1985 1678 113.6 — — — — -29 -65 -67 43.1% -0.61 5–3 (63%) 1–3 (25%) 100.7 +2.10
1979 2016 167.5 — — — — +50 +20 +54 66.9% +1.45 8–11 (42%) 9–7 (56%) 97.0 -2.87 1986 1618 111.0 — — — — +10 — -24 38.5% -0.67 2–4 (33%) 0–3 (0%) 95.5 +1.60
1980 2013 158.0 — — — — +36 +66 +56 69.3% +1.36 5–7 (42%) 4–2 (67%) 98.3 -2.56 1987 1594 117.2 — — — — +33 — — 35.7% -0.78 3–3 (50%) 0–1 — +0.29
1981 1739 124.8 — — — — +183 +184 +193 42.6% -0.43 1–5 (17%) 3–2 (60%) 91.7 +0.06 1988 1542 116.2 — — — — +33 -43 — 30.8% -1.31 4–4 (50%) 0–2 — -0.55
1982 1786 138.8 — — — — +84 +108 +114 48.5% -0.40 5–3 (63%) 4–0 (100%) 103.3 -1.49 1989 1592 121.3 — — — — +35 -116 — 31.4% -1.65 5–2 (71%) 4–2 (67%) 107.3 -2.88
1983 1691 130.9 — — — — +57 +168 — 42.6% -0.34 1–6 (14%) 1–5 (17%) 88.7 -0.64 1990 1611 125.3 — — — — +8 -85 — 43.9% -0.63 1–2 (33%) 0–2 — -0.44
1984 1717 126.0 — — — — — — +184 50.0% +0.36 1–1 0–2 — -0.60 1991 1630 119.4 — — — — +17 — — 41.4% -0.31 1–2 (33%) 0–2 — -0.69
1985 1794 143.8 — — — — -42 — +133 47.2% +0.17 4–4 (50%) 0–3 (0%) — -2.23 1992 1560 101.4 — — — — -16 — — 23.8% -2.00 0–3 (0%) 0–2 — -0.39
1986 1836 143.2 — — — — -9 — +88 55.6% +0.28 6–2 (75%) 4–6 (40%) 103.1 -2.32 1993 1555 103.2 — — — — -22 — — 42.9% -0.71 0–1 1–0 — -0.16
1987 1863 138.0 — — — — -29 -91 +94 56.7% +0.54 5–0 (100%) 2–2 (50%) 105.7 -0.34 — — — — — — — — — — — — — — — —
1988 1754 120.9 — — — — -21 — +154 49.3% -0.09 6–5 (55%) 1–3 (25%) 96.5 +1.17 — — — — — — — — — — — — — — — —
1989 1677 120.9 — — — — -25 — +183 43.6% -0.41 2–5 (29%) — — -0.70 — — — — — — — — — — — — — — — —
1990 1634 101.9 — — — — — — — 33.3% -0.33 0–2 0–1 — +0.25 — — — — — — — — — — — — — — — —
Career 2182 156.8 — — — — +4 +46 +38 60.7% +0.84 101–86 (54%) 58–58 (50%) 98.8 -4.11 Career 1932 136.4 — — — — +26 -124 -154 43.9% -0.44 46–55 (46%) 19–34 (36%) 92.3 -2.67

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.