H2H data updated: 2026-07-19 08:25 UTC

Mary Lou Piatek vs Yvonne Vermaak H2H: 2-3

Yvonne Vermaak holds a 3–2 lead over Mary Lou Piatek in their WTA head-to-head. Across 5 main-draw meetings, Yvonne Vermaak leads 2–1 on carpet, while Mary Lou Piatek leads 1–0 on clay. Most recently, Yvonne Vermaak won the 1982 Eastbourne third round 7-5 7-5.

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Mary Lou Piatek
H2H
2 – 3
5 main draw meetings
Yvonne Vermaak
RSA Age 69 Right-Handed 155 cm / 5'1"

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Jun 17, 1982* Eastbourne WTA 250 R32 Grass Yvonne Vermaak 7-5 7-5 Mary Lou Piatek Match data
Mar 19, 1982* Boston WTA 250 R16 Carpet Yvonne Vermaak 3-6 6-4 6-2 Mary Lou Piatek Match data
Mar 5, 1982* Los Angeles WTA 500 R16 Carpet Yvonne Vermaak 6-1 6-2 Mary Lou Piatek Match data
Aug 5, 1981* Indianapolis WTA 250 R64 Clay Mary Lou Piatek 1-6 7-6 6-2 Yvonne Vermaak Match data
Jan 22, 1981* Cincinnati WTA 1000 R32 Carpet Mary Lou Piatek 6-1 6-3 Yvonne Vermaak Match data

* Estimated match date where the exact historical date is unavailable.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 Finals 500 250 Titles
Mary Lou Piatek — — — 1,936 153 206 42.6% 0 0 0 0 2 2
Yvonne Vermaak #558 #38 10 1,891 239 249 49.0% 0 0 0 0 5 5

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 Yvonne Vermaak
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1978 0–1 0.0% — 1,499 0 0 1973 0–2 0.0% — 1,495 0 0
1979 3–5 37.5% — 1,546 0 0 1974 1–2 33.3% — 1,489 0 0
1980 16–12 57.1% — 1,737 0 0 1975 15–12 55.6% — 1,599 0 0
1981 30–22 57.7% — 1,873 0 1 1976 8–10 44.4% — 1,607 0 1
1982 18–21 46.2% — 1,792 0 1 1977 20–14 58.8% — 1,766 0 2
1983 12–20 37.5% — 1,721 0 1 1978 29–23 55.8% — 1,797 0 2
1984 18–20 47.4% — 1,703 0 2 1979 15–23 39.5% — 1,781 0 2
1985 14–18 43.8% — 1,678 0 2 1980 19–18 51.4% — 1,740 0 2
1986 8–15 34.8% — 1,619 0 2 1981 19–28 40.4% — 1,721 0 2
1987 6–12 33.3% — 1,594 0 2 1982 36–27 57.1% — 1,819 0 2
1988 6–16 27.3% — 1,542 0 2 1983 33–26 55.9% — 1,754 0 4
1989 7–15 31.8% — 1,593 0 2 1984 29–28 50.9% #41 1,801 0 5
1990 8–11 42.1% — 1,612 0 2 1985 8–21 27.6% #41 1,605 0 5
1991 5–8 38.5% — 1,630 0 2 1986 6–11 35.3% #104 1,565 0 5
1992 1–8 11.1% — 1,560 0 2 1987 1–3 25.0% #201 1,558 0 5
1993 1–2 33.3% — 1,555 0 2 1988 0–1 0.0% #287 1,542 0 5