H2H data updated: 2026-09-14 00:00 UTC

Rosie Casals vs Mary Lou Piatek H2H: 1-0

Rosie Casals holds a 1–0 lead over Mary Lou Piatek in their WTA head-to-head. Across 1 main-draw meeting, Rosie Casals leads 1–0 on grass. Most recently, Rosie Casals won the 1983 Wimbledon round of 128 3-6 7-6 6-3.

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Rosie Casals
USA Age 77 Right-Handed 159 cm / 5'3"
H2H
1 – 0
1 main-draw meetings
Mary Lou Piatek
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Rosie Casals 3-6 7-6 6-3 Mary Lou Piatek Match data Jun 22, 1983* R128 Wimbledon Grand Slam 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
Rosie Casals #207 #6 — 2,212 594 322 64.8% 0 0 0 2 10 12
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.

Rosie Casals Mary Lou Piatek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 36–14 72.0% — 1,750 0 1 1978 0–1 0.0% — 1,499 0 0
1969 42–19 68.9% — 1,877 0 1 1979 3–5 37.5% — 1,546 0 0
1970 52–21 71.2% — 2,043 0 4 1980 16–12 57.1% — 1,734 0 0
1971 92–31 74.8% — 2,172 0 7 1981 30–22 57.7% — 1,869 0 1
1972 64–26 71.1% — 2,105 0 10 1982 18–21 46.2% — 1,791 0 1
1973 81–28 74.3% — 2,139 0 12 1983 12–20 37.5% — 1,720 0 1
1974 43–16 72.9% — 2,140 0 12 1984 18–20 47.4% — 1,703 0 2
1975 20–14 58.8% — 2,004 0 12 1985 14–18 43.8% — 1,677 0 2
1976 39–17 69.6% #6 2,127 0 12 1986 8–15 34.8% — 1,618 0 2
1977 41–20 67.2% #6 2,054 0 12 1987 6–12 33.3% — 1,594 0 2
1978 24–15 61.5% — 2,011 0 12 1988 6–16 27.3% — 1,542 0 2
1979 19–26 42.2% — 1,826 0 12 1989 7–15 31.8% — 1,592 0 2
1980 14–25 35.9% — 1,677 0 12 1990 8–11 42.1% — 1,611 0 2
1981 12–14 46.2% — 1,685 0 12 1991 5–8 38.5% — 1,629 0 2
1982 4–8 33.3% — 1,666 0 12 1992 1–8 11.1% — 1,559 0 2
1983 9–12 42.9% — 1,660 0 12 1993 1–2 33.3% — 1,554 0 2
1984 1–4 20.0% #172 1,608 0 12 — — — — — — —
1985 1–4 20.0% — 1,573 0 12 — — — — — — —
1986 0–2 0.0% #207 1,546 0 12 — — — — — — —
1988 0–2 0.0% — 1,522 0 12 — — — — — — —
1989 0–2 0.0% — 1,499 0 12 — — — — — — —
1990 0–1 0.0% — 1,490 0 12 — — — — — — —
1991 0–1 0.0% — 1,475 0 12 — — — — — — —

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.

Rosie Casals 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 %
1968 9 2 11 81.8% 5 2 7 71.4% 18 8 26 69.2% 4 2 6 66.7% 1978 — — — — — — — — — — — — 0 1 1 0.0%
1969 4 4 8 50.0% 15 6 21 71.4% 22 7 29 75.9% 1 2 3 33.3% 1979 1 1 2 50.0% 0 1 1 0.0% — — — — 2 3 5 40.0%
1970 8 3 11 72.7% 29 8 37 78.4% 13 6 19 68.4% 2 4 6 33.3% 1980 5 3 8 62.5% 3 1 4 75.0% 0 2 2 0.0% 8 6 14 57.1%
1971 14 4 18 77.8% 25 10 35 71.4% 22 8 30 73.3% 31 9 40 77.5% 1981 15 5 20 75.0% 6 4 10 60.0% 4 6 10 40.0% 5 7 12 41.7%
1972 16 6 22 72.7% 11 6 17 64.7% 13 6 19 68.4% 24 8 32 75.0% 1982 4 5 9 44.4% 0 3 3 0.0% 1 2 3 33.3% 13 11 24 54.2%
1973 18 5 23 78.3% 20 5 25 80.0% 12 4 16 75.0% 31 14 45 68.9% 1983 5 6 11 45.5% 1 4 5 20.0% 0 2 2 0.0% 6 8 14 42.9%
1974 6 4 10 60.0% 8 3 11 72.7% 6 2 8 75.0% 23 7 30 76.7% 1984 9 8 17 52.9% 0 1 1 0.0% 5 6 11 45.5% 4 5 9 44.4%
1975 2 4 6 33.3% 5 4 9 55.6% 7 2 9 77.8% 6 4 10 60.0% 1985 7 11 18 38.9% 2 1 3 66.7% 1 2 3 33.3% 4 4 8 50.0%
1976 4 2 6 66.7% 3 1 4 75.0% 7 2 9 77.8% 25 12 37 67.6% 1986 5 5 10 50.0% 0 2 2 0.0% 1 2 3 33.3% 2 6 8 25.0%
1977 14 5 19 73.7% 7 4 11 63.6% 4 1 5 80.0% 16 10 26 61.5% 1987 3 5 8 37.5% 0 2 2 0.0% 0 2 2 0.0% 3 3 6 50.0%
1978 5 2 7 71.4% 2 1 3 66.7% 2 2 4 50.0% 15 10 25 60.0% 1988 4 9 13 30.8% 1 4 5 20.0% 0 1 1 0.0% 1 2 3 33.3%
1979 4 7 11 36.4% 1 3 4 25.0% 3 3 6 50.0% 11 13 24 45.8% 1989 7 9 16 43.8% 0 3 3 0.0% 0 2 2 0.0% 0 1 1 0.0%
1980 3 7 10 30.0% — — — — 4 6 10 40.0% 7 12 19 36.8% 1990 4 5 9 44.4% 3 3 6 50.0% 0 1 1 0.0% 1 2 3 33.3%
1981 7 4 11 63.6% 0 3 3 0.0% 5 5 10 50.0% 0 2 2 0.0% 1991 5 5 10 50.0% 0 2 2 0.0% — — — — 0 1 1 0.0%
1982 1 3 4 25.0% 0 1 1 0.0% 2 3 5 40.0% 1 1 2 50.0% 1992 0 6 6 0.0% 1 1 2 50.0% 0 1 1 0.0% — — — —
1983 4 5 9 44.4% 1 1 2 50.0% 4 3 7 57.1% 0 3 3 0.0% 1993 1 2 3 33.3% — — — — — — — — — — — —
1984 1 1 2 50.0% 0 2 2 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
1985 1 3 4 25.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1986 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1988 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1989 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1990 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1991 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 121 75 196 61.7% 132 65 197 67.0% 144 69 213 67.6% 197 113 310 63.5% 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.

Rosie Casals 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
1968 1751 130.0 — — — — +41 -201 -25 68.8% +1.61 7–9 (44%) — — +0.46 1978 1499 106.8 — — — — — — — 0.0% -3.50 — — — -0.12
1969 1878 140.7 — — — — -130 -92 +93 64.3% +1.09 12–6 (67%) — — -4.14 1979 1547 118.2 — — — — +97 — — 42.1% -0.89 1–2 (33%) 0–1 — +0.14
1970 2043 161.0 — — — — -151 +10 +19 68.1% +1.60 11–5 (69%) 1–3 (25%) 104.5 -10.75 1980 1735 137.7 — — — — +8 -158 — 55.7% +0.51 3–2 (60%) 1–0 — -0.18
1971 2173 168.5 — — — — +114 -75 -19 71.2% +1.62 18–13 (58%) 6–9 (40%) 96.2 -13.17 1981 1869 146.1 — — — — +63 -192 -295 56.7% +0.48 8–10 (44%) 6–5 (55%) 101.1 -3.04
1972 2106 158.7 — — — — +68 -51 +59 66.5% +1.41 15–7 (68%) 9–6 (60%) 102.7 -7.80 1982 1792 141.6 — — — — +56 -194 -210 47.1% -0.08 4–5 (44%) 2–3 (40%) 96.7 -0.75
1973 2139 165.9 — — — — +112 -17 +17 71.1% +1.70 15–13 (54%) 8–12 (40%) 96.6 -11.01 1983 1721 143.7 — — — — +53 -86 — 41.3% -0.43 4–7 (36%) 0–5 (0%) 91.3 -3.81
1974 2140 162.3 — — — — +99 +10 +10 69.8% +1.25 6–8 (43%) 5–4 (56%) 96.0 -8.65 1984 1703 128.4 — — — — -13 — -69 47.7% -0.47 5–5 (50%) 4–3 (57%) 101.0 -0.69
1975 2004 147.2 — — — — +23 +89 +133 59.8% +0.83 5–9 (36%) 3–4 (43%) 89.5 -3.22 1985 1678 113.6 — — — — -29 -65 -67 43.1% -0.61 5–3 (63%) 1–3 (25%) 100.7 +2.10
1976 2127 162.3 — — — — +41 -44 +54 65.5% +1.01 7–4 (64%) 6–3 (67%) 102.3 -7.96 1986 1618 111.0 — — — — +10 — -24 38.5% -0.67 2–4 (33%) 0–3 (0%) 95.5 +1.60
1977 2055 157.2 — — — — +115 -41 +133 64.5% +0.90 8–6 (57%) 6–5 (55%) 100.5 -6.67 1987 1594 117.2 — — — — +33 — — 35.7% -0.78 3–3 (50%) 0–1 — +0.29
1978 2011 156.1 — — — — +88 -37 +114 57.0% +0.57 10–7 (59%) 1–5 (17%) 95.9 -4.25 1988 1542 116.2 — — — — +33 -43 — 30.8% -1.31 4–4 (50%) 0–2 — -0.55
1979 1826 144.2 — — — — +54 +112 +237 46.6% -0.42 7–10 (41%) 6–2 (75%) 94.5 -3.11 1989 1592 121.3 — — — — +35 -116 — 31.4% -1.65 5–2 (71%) 4–2 (67%) 107.3 -2.88
1980 1678 130.2 — — — — +17 — +237 40.4% -0.67 3–8 (27%) 3–8 (27%) 89.2 -1.94 1990 1611 125.3 — — — — +8 -85 — 43.9% -0.63 1–2 (33%) 0–2 — -0.44
1981 1685 134.1 — — — — +86 +184 +145 46.0% +0.16 5–6 (45%) 0–4 (0%) 92.6 +0.30 1991 1630 119.4 — — — — +17 — — 41.4% -0.31 1–2 (33%) 0–2 — -0.69
1982 1666 113.8 — — — — +42 — +126 39.3% -0.75 1–3 (25%) 0–2 — -0.59 1992 1560 101.4 — — — — -16 — — 23.8% -2.00 0–3 (0%) 0–2 — -0.39
1983 1661 117.2 — — — — -26 — +150 44.9% -0.27 3–4 (43%) 1–0 — -0.27 1993 1555 103.2 — — — — -22 — — 42.9% -0.71 0–1 1–0 — -0.16
1984 1608 94.3 — — — — — — — 18.2% -2.82 1–0 — — +0.56 — — — — — — — — — — — — — — — —
1985 1573 92.4 — — — — +8 — — 11.1% -2.78 0–1 0–1 — +0.27 — — — — — — — — — — — — — — — —
1986 1547 97.2 — — — — — — — 0.0% -3.00 — — — 0.00 — — — — — — — — — — — — — — — —
1988 1522 93.9 — — — — — — — 0.0% -4.25 — — — 0.00 — — — — — — — — — — — — — — — —
1989 1499 89.7 — — — — — — — 0.0% -4.50 — — — +0.13 — — — — — — — — — — — — — — — —
1990 1491 100.4 — — — — — — — 0.0% -2.50 — — — -0.03 — — — — — — — — — — — — — — — —
1991 1476 94.5 — — — — — — — 0.0% -4.50 — — — +0.17 — — — — — — — — — — — — — — — —
Career 2212 159.2 — — — — +64 -31 +61 62.3% +0.97 134–119 (53%) 55–68 (45%) 91.2 -9.01 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.