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

Ann Kiyomura Hayashi vs Patricia Medrado H2H: 1-1

Ann Kiyomura Hayashi and Patricia Medrado are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, Patricia Medrado leads 1–0 on clay, while Ann Kiyomura Hayashi leads 1–0 on hard courts. Most recently, Patricia Medrado won the 1981 Hong Kong Open round of 16 6-1 6-2.

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Ann Kiyomura Hayashi
USA
H2H
1 – 1
2 main-draw meetings
Patricia Medrado
BRA Age 69

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Patricia Medrado 6-1 6-2 Ann Kiyomura Hayashi Match data Nov 6, 1981* R16 Hong Kong Open WTA 250 Clay
Ann Kiyomura Hayashi 6-2 6-2 Patricia Medrado Match data Oct 5, 1978* R32 Phoenix WTA 250 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
Ann Kiyomura Hayashi — — — 1,925 182 200 47.6% 0 0 0 0 2 2
Patricia Medrado #359 #67 9 1,836 152 163 48.3% 0 0 0 0 10 10

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 Patricia Medrado
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 0–1 0.0% — 1,488 0 0 1975 3–1 75.0% — 1,535 0 0
1969 0–1 0.0% — 1,473 0 0 1976 0–2 0.0% — 1,517 0 0
1970 0–1 0.0% — 1,459 0 0 1977 2–3 40.0% — 1,527 0 1
1971 0–1 0.0% — 1,457 0 0 1978 6–11 35.3% — 1,582 0 1
1972 5–4 55.6% — 1,516 0 0 1979 3–6 33.3% — 1,599 0 1
1973 28–30 48.3% — 1,648 0 0 1980 22–10 68.8% — 1,647 0 4
1974 24–13 64.9% — 1,789 0 0 1981 38–20 65.5% — 1,738 0 8
1975 7–12 36.8% — 1,749 0 0 1982 33–25 56.9% — 1,778 0 10
1976 9–16 36.0% — 1,724 0 0 1983 4–18 18.2% — 1,576 0 10
1977 4–8 33.3% — 1,740 0 0 1984 11–15 42.3% #108 1,588 0 10
1978 10–7 58.8% — 1,809 0 1 1985 8–14 36.4% #108 1,542 0 10
1979 26–22 54.2% — 1,874 0 1 1986 12–14 46.2% #76 1,561 0 10
1980 13–20 39.4% — 1,718 0 1 1987 6–13 31.6% #117 1,550 0 10
1981 23–19 54.8% — 1,852 0 2 1988 4–11 26.7% #180 1,473 0 10
1982 18–20 47.4% — 1,828 0 2 — — — — — — —
1983 13–20 39.4% — 1,716 0 2 — — — — — — —
1984 2–5 28.6% — 1,686 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.

Ann Kiyomura Hayashi Patricia Medrado
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 %
1968 0 1 1 0.0% — — — — — — — — — — — — 1975 — — — — 3 1 4 75.0% — — — — — — — —
1969 0 1 1 0.0% — — — — — — — — — — — — 1976 — — — — 0 2 2 0.0% — — — — — — — —
1970 0 1 1 0.0% — — — — — — — — — — — — 1977 1 2 3 33.3% — — — — — — — — 0 1 1 0.0%
1971 — — — — — — — — 0 1 1 0.0% — — — — 1978 3 5 8 37.5% 3 3 6 50.0% — — — — 0 3 3 0.0%
1972 — — — — 1 1 2 50.0% 4 2 6 66.7% 0 1 1 0.0% 1979 1 1 2 50.0% 2 1 3 66.7% 0 1 1 0.0% 0 2 2 0.0%
1973 4 5 9 44.4% 7 7 14 50.0% 11 11 22 50.0% 6 7 13 46.2% 1980 — — — — 9 8 17 52.9% — — — — — — — —
1974 5 2 7 71.4% 1 2 3 33.3% 14 7 21 66.7% 4 2 6 66.7% 1981 6 5 11 54.5% 10 9 19 52.6% — — — — 0 1 1 0.0%
1975 4 4 8 50.0% 0 1 1 0.0% 2 2 4 50.0% 0 4 4 0.0% 1982 2 6 8 25.0% 27 9 36 75.0% 1 1 2 50.0% 3 9 12 25.0%
1976 0 1 1 0.0% 2 2 4 50.0% 2 4 6 33.3% 5 9 14 35.7% 1983 2 7 9 22.2% 2 6 8 25.0% 0 2 2 0.0% 0 3 3 0.0%
1977 0 1 1 0.0% 0 1 1 0.0% 2 1 3 66.7% 2 5 7 28.6% 1984 3 5 8 37.5% 8 7 15 53.3% 0 2 2 0.0% 0 1 1 0.0%
1978 4 2 6 66.7% 4 0 4 100.0% 1 2 3 33.3% 1 3 4 25.0% 1985 1 5 6 16.7% 4 7 11 36.4% 0 1 1 0.0% — — — —
1979 10 7 17 58.8% — — — — 1 2 3 33.3% 15 13 28 53.6% 1986 4 6 10 40.0% 8 6 14 57.1% 0 1 1 0.0% 0 1 1 0.0%
1980 7 7 14 50.0% — — — — 3 5 8 37.5% 3 8 11 27.3% 1987 1 4 5 20.0% 5 9 14 35.7% — — — — — — — —
1981 2 4 6 33.3% 2 2 4 50.0% 9 6 15 60.0% 10 7 17 58.8% 1988 1 3 4 25.0% 3 7 10 30.0% 0 1 1 0.0% — — — —
1982 6 5 11 54.5% 0 1 1 0.0% 7 6 13 53.8% 5 8 13 38.5% — — — — — — — — — — — — — — — — —
1983 5 5 10 50.0% — — — — 4 6 10 40.0% 4 9 13 30.8% — — — — — — — — — — — — — — — — —
1984 0 2 2 0.0% — — — — 2 2 4 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
Career 47 48 95 49.5% 17 17 34 50.0% 62 57 119 52.1% 55 77 132 41.7% Career 25 49 74 33.8% 84 75 159 52.8% 1 9 10 10.0% 3 21 24 12.5%

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.

Ann Kiyomura Hayashi Patricia Medrado
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
1968 1488 90.8 — — — — — — — 0.0% -6.00 — — — -0.08 1975 1535 102.4 — — — — — +33 — 75.0% +1.25 — — — +1.01
1969 1473 94.6 — — — — — — — 0.0% -4.50 — — — +0.08 1976 1517 92.1 — — — — — — — 0.0% -4.25 — — — -0.02
1970 1460 98.9 — — — — — — — 0.0% -2.00 — 0–1 — +0.19 1977 1528 97.0 — — — — +38 — — 33.3% -2.22 0–1 1–0 — +0.68
1971 1457 104.8 — — — — — — — 33.3% -0.67 0–1 — — -0.19 1978 1582 115.6 — — — — +3 -32 — 36.6% -1.05 5–2 (71%) — — -0.14
1972 1516 107.6 — — — — — — +85 47.6% +0.24 3–0 (100%) 0–1 — +1.18 1979 1600 122.4 — — — — -32 +22 — 40.9% -1.45 1–3 (25%) 5–0 (100%) 102.1 -0.16
1973 1648 127.6 — — — — -75 -23 -24 50.0% -0.14 8–12 (40%) 4–4 (50%) 99.3 +4.25 1980 1647 127.0 — — — — — -68 — 64.9% +1.30 6–4 (60%) 1–4 (20%) 98.0 +0.78
1974 1789 136.8 — — — — -106 -163 +40 59.5% +0.55 8–4 (67%) 2–1 (67%) 107.2 +0.93 1981 1739 134.1 — — — — -124 -50 — 63.3% +1.20 7–7 (50%) 6–9 (40%) 96.5 +2.58
1975 1750 124.3 — — — — -7 — +32 38.6% -1.16 3–5 (38%) 2–1 (67%) 100.1 -0.93 1982 1779 140.8 — — — — -197 +94 — 56.6% +0.45 6–11 (35%) 7–3 (70%) 99.2 -1.37
1976 1724 127.9 — — — — -53 -75 +49 41.1% -0.80 3–5 (38%) 1–1 — -0.96 1983 1577 104.0 — — — — -93 +205 — 24.0% -1.80 2–4 (33%) 1–3 (25%) 94.8 +0.53
1977 1740 135.0 — — — — -68 — +42 37.0% -0.93 1–2 (33%) 0–1 — -1.45 1984 1588 120.4 — — — — -112 +162 — 48.3% -0.34 0–6 (0%) 5–3 (63%) 95.2 +0.36
1978 1810 140.1 — — — — -59 -135 -22 56.8% +0.62 2–1 (67%) 1–2 (33%) 100.7 -0.22 1985 1542 114.5 — — — — -92 +100 — 39.1% -0.22 0–2 1–3 (25%) — +0.78
1979 1875 150.3 — — — — +16 — -129 53.6% +0.14 12–8 (60%) 5–4 (56%) 104.4 -0.58 1986 1562 123.2 — — — — -82 +112 — 49.2% +0.11 5–8 (38%) 5–2 (71%) 99.4 +1.15
1980 1719 127.4 — — — — +24 — -38 46.7% -0.05 4–9 (31%) 2–4 (33%) 91.8 -0.63 1987 1551 107.8 — — — — -107 +50 — 39.1% -0.48 2–6 (25%) 3–1 (75%) 97.0 +0.64
1981 1852 135.7 — — — — -26 -139 -64 53.7% +0.03 6–5 (55%) 3–2 (60%) 101.7 -0.47 1988 1473 104.6 — — — — -66 +64 — 31.4% -1.20 2–3 (40%) 1–1 — +1.44
1982 1828 133.7 — — — — -41 — 0 43.0% -0.73 9–5 (64%) 6–1 (86%) 108.1 -4.10 — — — — — — — — — — — — — — — —
1983 1717 130.9 — — — — +25 — +29 42.0% -0.68 2–3 (40%) 6–3 (67%) 100.2 -1.71 — — — — — — — — — — — — — — — —
1984 1687 109.3 — — — — -20 — +88 26.7% -2.27 1–0 1–0 — -0.36 — — — — — — — — — — — — — — — —
Career 1926 140.1 — — — — -21 -76 +3 48.0% -0.26 62–60 (51%) 33–26 (56%) 104.8 -1.34 Career 1837 128.4 — — — — -99 +60 — 49.5% +0.04 36–57 (39%) 36–29 (55%) 95.0 +2.62

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.