H2H data updated: 2026-10-28 00:00 UTC

Marcella Mesker vs Mary Lou Piatek H2H: 1-1

Marcella Mesker and Mary Lou Piatek are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, Marcella Mesker leads 1–0 on clay, while Mary Lou Piatek leads 1–0 on hard courts. Most recently, Mary Lou Piatek won the 1984 Denver round of 16 6-2 6-4.

H2H
1 – 1
2 main-draw meetings

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mary Lou Piatek 6-2 6-4 Marcella Mesker #46 Match data Jan 20, 1984* R16 Denver WTA 250 Hard
Marcella Mesker 7-6 6-1 Mary Lou Piatek Match data May 27, 1982* R64 Roland Garros Grand Slam 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
Marcella Mesker — #31 22 1,792 103 134 43.5% 0 0 0 0 1 1
Mary Lou Piatek — — — 1,938 157 207 43.1% 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.

Marcella Mesker Mary Lou Piatek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1979 6–10 37.5% — 1,500 0 0 1978 0–1 0.0% — 1,499 0 0
1980 6–13 31.6% — 1,492 0 0 1979 3–5 37.5% — 1,547 0 0
1981 7–9 43.8% — 1,558 0 0 1980 20–13 60.6% — 1,762 0 0
1982 14–14 50.0% — 1,683 0 0 1981 30–22 57.7% — 1,874 0 1
1983 16–19 45.7% — 1,708 0 0 1982 18–21 46.2% — 1,793 0 1
1984 21–22 48.8% #37 1,741 0 0 1983 12–20 37.5% — 1,721 0 1
1985 11–20 35.5% — 1,660 0 0 1984 18–20 47.4% — 1,704 0 2
1986 16–11 59.3% #31 1,761 0 1 1985 14–18 43.8% — 1,678 0 2
1987 5–12 29.4% #148 1,623 0 1 1986 8–15 34.8% — 1,618 0 2
1988 1–4 20.0% #369 1,563 0 1 1987 6–12 33.3% — 1,594 0 2
— — — — — — — 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% — 1,560 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.

Marcella Mesker 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 %
1979 — — — — 0 1 1 0.0% 5 7 12 41.7% — — — — 1978 — — — — — — — — — — — — 0 1 1 0.0%
1980 1 3 4 25.0% 0 2 2 0.0% 4 5 9 44.4% 1 3 4 25.0% 1979 1 1 2 50.0% 0 1 1 0.0% — — — — 2 3 5 40.0%
1981 2 1 3 66.7% 4 2 6 66.7% 1 5 6 16.7% 0 1 1 0.0% 1980 5 3 8 62.5% 3 1 4 75.0% 0 2 2 0.0% 12 7 19 63.2%
1982 1 1 2 50.0% 6 4 10 60.0% 7 6 13 53.8% 0 3 3 0.0% 1981 15 5 20 75.0% 6 4 10 60.0% 4 6 10 40.0% 5 7 12 41.7%
1983 4 3 7 57.1% 6 6 12 50.0% 3 5 8 37.5% 3 5 8 37.5% 1982 4 5 9 44.4% 0 3 3 0.0% 1 2 3 33.3% 13 11 24 54.2%
1984 1 7 8 12.5% 7 5 12 58.3% 6 5 11 54.5% 7 5 12 58.3% 1983 5 6 11 45.5% 1 4 5 20.0% 0 2 2 0.0% 6 8 14 42.9%
1985 5 7 12 41.7% 0 3 3 0.0% 5 6 11 45.5% 1 4 5 20.0% 1984 9 8 17 52.9% 0 1 1 0.0% 5 6 11 45.5% 4 5 9 44.4%
1986 1 1 2 50.0% 3 3 6 50.0% 4 3 7 57.1% 8 4 12 66.7% 1985 7 11 18 38.9% 2 1 3 66.7% 1 2 3 33.3% 4 4 8 50.0%
1987 3 4 7 42.9% 1 6 7 14.3% 1 2 3 33.3% — — — — 1986 5 5 10 50.0% 0 2 2 0.0% 1 2 3 33.3% 2 6 8 25.0%
1988 0 1 1 0.0% 1 3 4 25.0% — — — — — — — — 1987 3 5 8 37.5% 0 2 2 0.0% 0 2 2 0.0% 3 3 6 50.0%
— — — — — — — — — — — — — — — — — 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 18 28 46 39.1% 28 35 63 44.4% 36 44 80 45.0% 20 25 45 44.4% Career 75 85 160 46.9% 17 32 49 34.7% 12 29 41 29.3% 53 61 114 46.5%

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.

Marcella Mesker 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
1979 1500 112.9 — — — — — — +53 35.5% -1.03 0–3 (0%) 2–0 — +0.76 1978 1499 106.9 — — — — — — — 0.0% -3.50 — — — -0.11
1980 1492 111.8 — — — — +48 — +52 36.6% -1.05 0–3 (0%) 3–1 (75%) 97.5 +0.90 1979 1547 118.3 — — — — +98 — — 42.1% -0.89 1–2 (33%) 0–1 — +0.12
1981 1559 120.5 — — — — +54 +11 -28 50.0% +0.22 2–4 (33%) 2–1 (67%) 100.7 +1.12 1980 1763 137.4 — — — — +9 -186 — 57.7% +0.61 4–3 (57%) 3–0 (100%) — +0.65
1982 1683 137.3 — — — — -141 -24 -8 51.6% +0.34 5–5 (50%) 2–7 (22%) 99.1 -1.00 1981 1875 146.3 — — — — +65 -198 -301 56.7% +0.48 8–10 (44%) 6–5 (55%) 100.9 -2.75
1983 1709 136.3 — — — — -78 -2 -51 48.1% -0.10 2–5 (29%) 4–3 (57%) 98.5 -2.88 1982 1794 142.2 — — — — +59 -196 -212 47.1% -0.08 4–5 (44%) 2–3 (40%) 96.6 -0.89
1984 1741 131.1 — — — — -104 +24 -30 46.7% -0.38 12–7 (63%) 9–5 (64%) 110.6 +0.47 1983 1722 143.9 — — — — +55 -87 — 41.3% -0.43 4–7 (36%) 0–5 (0%) 91.3 -4.11
1985 1660 121.2 — — — — -17 +6 +18 39.2% -0.95 5–7 (42%) 2–4 (33%) 97.7 -0.96 1984 1704 128.6 — — — — -14 — -70 47.7% -0.47 5–5 (50%) 4–3 (57%) 100.9 -0.88
1986 1761 129.2 — — — — -42 -66 -55 58.7% +0.24 6–5 (55%) 4–1 (80%) 104.6 +0.46 1985 1678 113.9 — — — — -28 -65 -67 43.1% -0.61 5–3 (63%) 1–3 (25%) 100.7 +1.98
1987 1624 99.7 — — — — +65 -59 +48 33.3% -1.08 0–4 (0%) 2–3 (40%) 92.6 +0.55 1986 1619 111.1 — — — — +10 — -25 38.5% -0.67 2–4 (33%) 0–3 (0%) 95.5 +1.45
1988 1563 97.9 — — — — — -35 — 27.3% -1.27 0–1 2–1 (67%) — +0.52 1987 1595 117.3 — — — — +33 — — 35.7% -0.78 3–3 (50%) 0–1 — +0.12
— — — — — — — — — — — — — — — — 1988 1543 116.2 — — — — +33 -44 — 30.8% -1.31 4–4 (50%) 0–2 — -0.58
— — — — — — — — — — — — — — — — 1989 1593 121.4 — — — — +35 -117 — 31.4% -1.65 5–2 (71%) 4–2 (67%) 107.3 -2.73
— — — — — — — — — — — — — — — — 1990 1612 125.3 — — — — +7 -86 — 43.9% -0.63 1–2 (33%) 0–2 — -0.44
— — — — — — — — — — — — — — — — 1991 1630 119.5 — — — — +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 — — — — -21 — — 42.9% -0.71 0–1 1–0 — -0.16
Career 1792 130.7 — — — — -42 -14 +1 45.4% -0.37 32–44 (42%) 32–26 (55%) 102.2 -0.03 Career 1938 136.6 — — — — +26 -129 -156 44.3% -0.42 47–56 (46%) 21–34 (38%) 92.7 -2.59

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.