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

Mary Lou Piatek vs Susan Mascarin H2H: 2-1

Mary Lou Piatek holds a 2–1 lead over Susan Mascarin in their WTA head-to-head. Across 3 main-draw meetings, Mary Lou Piatek leads 2–0 on hard courts, while Susan Mascarin leads 1–0 on clay. Most recently, Mary Lou Piatek won the 1987 Little Rock round of 32 6-2 3-6 6-2.

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Mary Lou Piatek
USA
H2H
2 – 1
3 main-draw meetings
Susan Mascarin
USA Age 62 Right-Handed 173 cm / 5'8"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mary Lou Piatek 6-2 3-6 6-2 Susan Mascarin #121 Match data Nov 5, 1987* R32 Little Rock WTA 250 Hard
Mary Lou Piatek 6-1 6-3 Susan Mascarin Match data Sep 26, 1981* SF Atlanta WTA 250 Hard
Susan Mascarin 6-4 5-7 6-1 Mary Lou Piatek Match data Aug 6, 1981* R32 Indianapolis 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
Mary Lou Piatek — — — 1,931 153 206 42.6% 0 0 0 0 2 2
Susan Mascarin #460 #32 14 1,797 113 142 44.3% 0 0 0 0 1 1

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.

Mary Lou Piatek Susan Mascarin
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1978 0–1 0.0% — 1,499 0 0 1979 2–1 66.7% — 1,526 0 1
1979 3–5 37.5% — 1,546 0 0 1980 8–9 47.1% — 1,630 0 1
1980 16–12 57.1% — 1,734 0 0 1981 19–22 46.3% — 1,691 0 1
1981 30–22 57.7% — 1,869 0 1 1982 19–18 51.4% — 1,752 0 1
1982 18–21 46.2% — 1,791 0 1 1983 9–24 27.3% — 1,550 0 1
1983 12–20 37.5% — 1,720 0 1 1984 9–13 40.9% #69 1,649 0 1
1984 18–20 47.4% — 1,703 0 2 1985 22–22 50.0% #65 1,731 0 1
1985 14–18 43.8% — 1,677 0 2 1986 16–16 50.0% #54 1,691 0 1
1986 8–15 34.8% — 1,618 0 2 1987 6–9 40.0% #118 1,636 0 1
1987 6–12 33.3% — 1,594 0 2 1988 3–8 27.3% #221 1,551 0 1
1988 6–16 27.3% — 1,542 0 2 — — — — — — —
1989 7–15 31.8% — 1,592 0 2 — — — — — — —
1990 8–11 42.1% — 1,611 0 2 — — — — — — —
1991 5–8 38.5% — 1,629 0 2 — — — — — — —
1992 1–8 11.1% — 1,559 0 2 — — — — — — —
1993 1–2 33.3% — 1,554 0 2 — — — — — — —

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.

Mary Lou Piatek Susan Mascarin
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 %
1978 — — — — — — — — — — — — 0 1 1 0.0% 1979 0 1 1 0.0% — — — — — — — — — — — —
1979 1 1 2 50.0% 0 1 1 0.0% — — — — 2 3 5 40.0% 1980 6 4 10 60.0% 0 2 2 0.0% 0 1 1 0.0% 2 2 4 50.0%
1980 5 3 8 62.5% 3 1 4 75.0% 0 2 2 0.0% 8 6 14 57.1% 1981 9 6 15 60.0% 5 6 11 45.5% 1 2 3 33.3% 3 7 10 30.0%
1981 15 5 20 75.0% 6 4 10 60.0% 4 6 10 40.0% 5 7 12 41.7% 1982 7 5 12 58.3% 7 5 12 58.3% 3 5 8 37.5% 2 2 4 50.0%
1982 4 5 9 44.4% 0 3 3 0.0% 1 2 3 33.3% 13 11 24 54.2% 1983 3 8 11 27.3% 4 7 11 36.4% 0 2 2 0.0% 2 6 8 25.0%
1983 5 6 11 45.5% 1 4 5 20.0% 0 2 2 0.0% 6 8 14 42.9% 1984 4 2 6 66.7% 5 7 12 41.7% 0 3 3 0.0% 0 1 1 0.0%
1984 9 8 17 52.9% 0 1 1 0.0% 5 6 11 45.5% 4 5 9 44.4% 1985 4 8 12 33.3% 10 7 17 58.8% 5 2 7 71.4% 3 5 8 37.5%
1985 7 11 18 38.9% 2 1 3 66.7% 1 2 3 33.3% 4 4 8 50.0% 1986 5 7 12 41.7% 7 5 12 58.3% 1 2 3 33.3% 3 2 5 60.0%
1986 5 5 10 50.0% 0 2 2 0.0% 1 2 3 33.3% 2 6 8 25.0% 1987 4 4 8 50.0% 0 3 3 0.0% — — — — 2 2 4 50.0%
1987 3 5 8 37.5% 0 2 2 0.0% 0 2 2 0.0% 3 3 6 50.0% 1988 3 6 9 33.3% 0 2 2 0.0% — — — — — — — —
1988 4 9 13 30.8% 1 4 5 20.0% 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
1989 7 9 16 43.8% 0 3 3 0.0% 0 2 2 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
1990 4 5 9 44.4% 3 3 6 50.0% 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
1991 5 5 10 50.0% 0 2 2 0.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
1992 0 6 6 0.0% 1 1 2 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
1993 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 75 85 160 46.9% 17 32 49 34.7% 12 29 41 29.3% 49 60 109 45.0% Career 45 51 96 46.9% 38 44 82 46.3% 10 17 27 37.0% 17 27 44 38.6%

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.

Mary Lou Piatek Susan Mascarin
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
1978 1499 106.8 — — — — — — — 0.0% -3.50 — — — -0.12 1979 1527 102.0 — — — — — — — 40.0% -1.00 1–0 — — +0.24
1979 1547 118.2 — — — — +97 — — 42.1% -0.89 1–2 (33%) 0–1 — +0.14 1980 1630 140.4 — — — — +49 — — 53.8% +0.36 0–5 (0%) 2–1 (67%) 97.1 -0.70
1980 1735 137.7 — — — — +8 -158 — 55.7% +0.51 3–2 (60%) 1–0 — -0.18 1981 1691 128.7 — — — — +12 -93 -107 46.3% -0.33 7–6 (54%) 2–6 (25%) 100.1 -0.23
1981 1869 146.1 — — — — +63 -192 -295 56.7% +0.48 8–10 (44%) 6–5 (55%) 101.1 -3.04 1982 1753 128.9 — — — — -11 -73 -151 47.0% -0.29 8–3 (73%) 1–2 (33%) 105.0 -2.42
1982 1792 141.6 — — — — +56 -194 -210 47.1% -0.08 4–5 (44%) 2–3 (40%) 96.7 -0.75 1983 1551 112.4 — — — — +48 +98 — 30.0% -1.33 1–5 (17%) 2–2 (50%) 94.1 0.00
1983 1721 143.7 — — — — +53 -86 — 41.3% -0.43 4–7 (36%) 0–5 (0%) 91.3 -3.81 1984 1649 128.1 — — — — +14 +25 -118 45.8% -0.06 2–4 (33%) 4–2 (67%) 100.4 -0.56
1984 1703 128.4 — — — — -13 — -69 47.7% -0.47 5–5 (50%) 4–3 (57%) 101.0 -0.69 1985 1731 133.2 — — — — -76 -10 -111 51.5% -0.04 4–7 (36%) 8–6 (57%) 99.9 -2.27
1985 1678 113.6 — — — — -29 -65 -67 43.1% -0.61 5–3 (63%) 1–3 (25%) 100.7 +2.10 1986 1692 126.4 — — — — -32 +32 -82 54.1% +0.09 2–8 (20%) 5–4 (56%) 94.1 -0.91
1986 1618 111.0 — — — — +10 — -24 38.5% -0.67 2–4 (33%) 0–3 (0%) 95.5 +1.60 1987 1637 112.3 — — — — +11 +15 — 41.2% -0.71 2–4 (33%) 2–0 — +0.92
1987 1594 117.2 — — — — +33 — — 35.7% -0.78 3–3 (50%) 0–1 — +0.29 1988 1552 110.0 — — — — +21 — — 33.3% -1.00 0–2 1–4 (20%) — +0.98
1988 1542 116.2 — — — — +33 -43 — 30.8% -1.31 4–4 (50%) 0–2 — -0.55 — — — — — — — — — — — — — — — —
1989 1592 121.3 — — — — +35 -116 — 31.4% -1.65 5–2 (71%) 4–2 (67%) 107.3 -2.88 — — — — — — — — — — — — — — — —
1990 1611 125.3 — — — — +8 -85 — 43.9% -0.63 1–2 (33%) 0–2 — -0.44 — — — — — — — — — — — — — — — —
1991 1630 119.4 — — — — +17 — — 41.4% -0.31 1–2 (33%) 0–2 — -0.69 — — — — — — — — — — — — — — — —
1992 1560 101.4 — — — — -16 — — 23.8% -2.00 0–3 (0%) 0–2 — -0.39 — — — — — — — — — — — — — — — —
1993 1555 103.2 — — — — -22 — — 42.9% -0.71 0–1 1–0 — -0.16 — — — — — — — — — — — — — — — —
Career 1932 136.4 — — — — +26 -124 -154 43.9% -0.44 46–55 (46%) 19–34 (36%) 92.3 -2.67 Career 1797 132.1 — — — — +1 -3 -121 45.9% -0.33 27–44 (38%) 27–27 (50%) 96.7 -1.95

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.