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

Christiane Jolissaint vs Mary Lou Piatek H2H: 0-1

Mary Lou Piatek holds a 1–0 lead over Christiane Jolissaint in their WTA head-to-head. Across 1 main-draw meeting, Mary Lou Piatek leads 1–0 on hard courts. Most recently, Mary Lou Piatek won the 1985 US Open round of 128 6-2 6-4.

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Christiane Jolissaint
SUI Age 65 173 cm / 5'8"
H2H
0 – 1
1 main-draw meetings
Mary Lou Piatek
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mary Lou Piatek 6-2 6-4 Christiane Jolissaint Match data Aug 29, 1985* R128 US Open Grand Slam 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
Christiane Jolissaint — — — 1,754 95 131 42.0% 0 0 0 0 0 0
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.

Christiane Jolissaint Mary Lou Piatek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1977 0–1 0.0% — 1,484 0 0 1978 0–1 0.0% — 1,499 0 0
1978 5–6 45.5% — 1,500 0 0 1979 3–5 37.5% — 1,546 0 0
1979 0–3 0.0% — 1,478 0 0 1980 16–12 57.1% — 1,734 0 0
1980 11–22 33.3% — 1,539 0 0 1981 30–22 57.7% — 1,869 0 1
1981 5–5 50.0% — 1,569 0 0 1982 18–21 46.2% — 1,791 0 1
1982 7–8 46.7% — 1,562 0 0 1983 12–20 37.5% — 1,720 0 1
1983 14–12 53.8% — 1,696 0 0 1984 18–20 47.4% — 1,703 0 2
1984 15–20 42.9% — 1,689 0 0 1985 14–18 43.8% — 1,677 0 2
1985 17–18 48.6% — 1,719 0 0 1986 8–15 34.8% — 1,618 0 2
1986 6–16 27.3% — 1,637 0 0 1987 6–12 33.3% — 1,594 0 2
1987 9–9 50.0% — 1,627 0 0 1988 6–16 27.3% — 1,542 0 2
1988 6–11 35.3% — 1,573 0 0 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.

Christiane Jolissaint 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 %
1977 — — — — — — — — — — — — 0 1 1 0.0% 1978 — — — — — — — — — — — — 0 1 1 0.0%
1978 — — — — 3 2 5 60.0% 1 3 4 25.0% 1 1 2 50.0% 1979 1 1 2 50.0% 0 1 1 0.0% — — — — 2 3 5 40.0%
1979 — — — — — — — — 0 2 2 0.0% — — — — 1980 5 3 8 62.5% 3 1 4 75.0% 0 2 2 0.0% 8 6 14 57.1%
1980 2 5 7 28.6% 2 5 7 28.6% 4 6 10 40.0% 3 6 9 33.3% 1981 15 5 20 75.0% 6 4 10 60.0% 4 6 10 40.0% 5 7 12 41.7%
1981 — — — — 1 3 4 25.0% 0 1 1 0.0% — — — — 1982 4 5 9 44.4% 0 3 3 0.0% 1 2 3 33.3% 13 11 24 54.2%
1982 0 1 1 0.0% 7 4 11 63.6% 0 3 3 0.0% — — — — 1983 5 6 11 45.5% 1 4 5 20.0% 0 2 2 0.0% 6 8 14 42.9%
1983 5 6 11 45.5% 6 4 10 60.0% 3 2 5 60.0% — — — — 1984 9 8 17 52.9% 0 1 1 0.0% 5 6 11 45.5% 4 5 9 44.4%
1984 2 4 6 33.3% 5 6 11 45.5% 8 5 13 61.5% 0 5 5 0.0% 1985 7 11 18 38.9% 2 1 3 66.7% 1 2 3 33.3% 4 4 8 50.0%
1985 6 7 13 46.2% 3 3 6 50.0% 6 6 12 50.0% 2 2 4 50.0% 1986 5 5 10 50.0% 0 2 2 0.0% 1 2 3 33.3% 2 6 8 25.0%
1986 3 4 7 42.9% 1 4 5 20.0% 0 3 3 0.0% 2 5 7 28.6% 1987 3 5 8 37.5% 0 2 2 0.0% 0 2 2 0.0% 3 3 6 50.0%
1987 4 3 7 57.1% 1 2 3 33.3% 3 2 5 60.0% 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%
1988 1 4 5 20.0% 2 3 5 40.0% 3 4 7 42.9% — — — — 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 23 34 57 40.4% 31 36 67 46.3% 28 37 65 43.1% 9 22 31 29.0% 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.

Christiane Jolissaint 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
1977 1484 98.0 — — — — — — — 33.3% -2.33 0–1 1–0 — +0.36 1978 1499 106.8 — — — — — — — 0.0% -3.50 — — — -0.12
1978 1500 100.3 — — — — — +53 +17 45.5% -0.27 — 1–3 (25%) — +1.69 1979 1547 118.2 — — — — +97 — — 42.1% -0.89 1–2 (33%) 0–1 — +0.14
1979 1478 103.8 — — — — — — — 14.3% -2.86 0–1 0–1 — -0.27 1980 1735 137.7 — — — — +8 -158 — 55.7% +0.51 3–2 (60%) 1–0 — -0.18
1980 1539 126.8 — — — — -10 -21 +8 35.5% -1.15 5–5 (50%) 6–4 (60%) 102.3 -1.72 1981 1869 146.1 — — — — +63 -192 -295 56.7% +0.48 8–10 (44%) 6–5 (55%) 101.1 -3.04
1981 1570 115.3 — — — — — -40 — 50.0% +0.30 — — — +0.15 1982 1792 141.6 — — — — +56 -194 -210 47.1% -0.08 4–5 (44%) 2–3 (40%) 96.7 -0.75
1982 1563 116.0 — — — — — +37 -27 50.0% +0.15 1–3 (25%) 1–2 (33%) 96.7 +1.62 1983 1721 143.7 — — — — +53 -86 — 41.3% -0.43 4–7 (36%) 0–5 (0%) 91.3 -3.81
1983 1697 135.7 — — — — -113 +39 -121 54.2% +0.29 3–4 (43%) 4–2 (67%) 103.2 -0.58 1984 1703 128.4 — — — — -13 — -69 47.7% -0.47 5–5 (50%) 4–3 (57%) 101.0 -0.69
1984 1689 124.3 — — — — -172 +44 +4 43.0% -0.67 7–4 (64%) 3–2 (60%) 105.4 +0.55 1985 1678 113.6 — — — — -29 -65 -67 43.1% -0.61 5–3 (63%) 1–3 (25%) 100.7 +2.10
1985 1719 124.8 — — — — -100 -4 -37 49.4% -0.11 4–5 (44%) 4–5 (44%) 100.9 -0.72 1986 1618 111.0 — — — — +10 — -24 38.5% -0.67 2–4 (33%) 0–3 (0%) 95.5 +1.60
1986 1638 115.2 — — — — -13 +12 -28 28.8% -1.44 5–3 (63%) 1–5 (17%) 98.2 -1.67 1987 1594 117.2 — — — — +33 — — 35.7% -0.78 3–3 (50%) 0–1 — +0.29
1987 1628 115.5 — — — — +9 -22 +37 45.0% -0.63 4–0 (100%) 1–0 — +1.55 1988 1542 116.2 — — — — +33 -43 — 30.8% -1.31 4–4 (50%) 0–2 — -0.55
1988 1574 99.1 — — — — -12 +23 +53 34.1% -1.22 5–2 (71%) 2–3 (40%) 102.4 +0.52 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 1754 125.6 — — — — -61 +20 -7 42.6% -0.59 34–28 (55%) 24–27 (47%) 104.4 +0.65 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.