H2H data updated: 2026-07-19 14:15 UTC

Ann Kiyomura Hayashi vs Mary Lou Piatek H2H: 0-2

Mary Lou Piatek holds a 2–0 lead over Ann Kiyomura Hayashi in their WTA head-to-head. Across 2 main-draw meetings, Mary Lou Piatek leads 1–0 on carpet and 1–0 on hard courts. Most recently, Mary Lou Piatek won the 1984 Houston third round 6-3 6-2.

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Ann Kiyomura Hayashi
Age 70 Right-Handed
H2H
0 – 2
2 main draw meetings
Mary Lou Piatek

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Feb 2, 1984* Houston WTA 250 R32 Carpet Mary Lou Piatek 6-3 6-2 Ann Kiyomura Hayashi Match data
Aug 28, 1980* US Open Grand Slam R128 Hard Mary Lou Piatek 6-1 7-5 Ann Kiyomura Hayashi 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
Ann Kiyomura Hayashi — — — 1,924 182 200 47.6% 0 0 0 0 2 2
Mary Lou Piatek — — — 1,936 153 206 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.

Ann Kiyomura Hayashi Mary Lou Piatek
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 0–1 0.0% — 1,488 0 0 1978 0–1 0.0% — 1,499 0 0
1969 0–1 0.0% — 1,473 0 0 1979 3–5 37.5% — 1,546 0 0
1970 0–1 0.0% — 1,459 0 0 1980 16–12 57.1% — 1,737 0 0
1971 0–1 0.0% — 1,456 0 0 1981 30–22 57.7% — 1,873 0 1
1972 5–4 55.6% — 1,515 0 0 1982 18–21 46.2% — 1,792 0 1
1973 28–30 48.3% — 1,649 0 0 1983 12–20 37.5% — 1,721 0 1
1974 24–13 64.9% — 1,789 0 0 1984 18–20 47.4% — 1,703 0 2
1975 7–12 36.8% — 1,770 0 0 1985 14–18 43.8% — 1,678 0 2
1976 9–16 36.0% — 1,714 0 0 1986 8–15 34.8% — 1,619 0 2
1977 4–8 33.3% — 1,731 0 0 1987 6–12 33.3% — 1,594 0 2
1978 10–7 58.8% — 1,803 0 1 1988 6–16 27.3% — 1,542 0 2
1979 26–22 54.2% — 1,873 0 1 1989 7–15 31.8% — 1,593 0 2
1980 13–20 39.4% — 1,719 0 1 1990 8–11 42.1% — 1,612 0 2
1981 23–19 54.8% — 1,853 0 2 1991 5–8 38.5% — 1,630 0 2
1982 18–20 47.4% — 1,827 0 2 1992 1–8 11.1% — 1,560 0 2
1983 13–20 39.4% — 1,713 0 2 1993 1–2 33.3% — 1,555 0 2
1984 2–5 28.6% — 1,684 0 2 — — — — — — —