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

Ann Kiyomura Hayashi vs Mareen Louie Harper H2H: 0-1

Mareen Louie Harper holds a 1–0 lead over Ann Kiyomura Hayashi in their WTA head-to-head. Across 1 main-draw meeting, Mareen Louie Harper leads 1–0 on grass. Most recently, Mareen Louie Harper won the 1980 Wimbledon round of 64 3-6 6-3 6-4.

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Ann Kiyomura Hayashi
USA
H2H
0 – 1
1 main-draw meetings
Mareen Louie Harper
USA Age 66

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mareen Louie Harper 3-6 6-3 6-4 Ann Kiyomura Hayashi Match data Jun 27, 1980* R64 Wimbledon Grand Slam Grass

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
Mareen Louie Harper — — — 1,910 177 239 42.5% 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 Mareen Louie Harper
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 0–1 0.0% — 1,488 0 0 1974 2–1 66.7% — 1,523 0 0
1969 0–1 0.0% — 1,473 0 0 1976 1–2 33.3% — 1,521 0 0
1970 0–1 0.0% — 1,459 0 0 1977 0–2 0.0% — 1,519 0 0
1971 0–1 0.0% — 1,457 0 0 1978 7–12 36.8% — 1,588 0 0
1972 5–4 55.6% — 1,516 0 0 1979 4–13 23.5% — 1,568 0 0
1973 28–30 48.3% — 1,648 0 0 1980 22–23 48.9% — 1,714 0 0
1974 24–13 64.9% — 1,789 0 0 1981 16–20 44.4% — 1,743 0 0
1975 7–12 36.8% — 1,749 0 0 1982 9–18 33.3% — 1,654 0 0
1976 9–16 36.0% — 1,724 0 0 1983 7–10 41.2% — 1,671 0 0
1977 4–8 33.3% — 1,740 0 0 1984 18–17 51.4% — 1,733 0 1
1978 10–7 58.8% — 1,809 0 1 1985 29–18 61.7% — 1,776 0 2
1979 26–22 54.2% — 1,874 0 1 1986 12–17 41.4% — 1,679 0 2
1980 13–20 39.4% — 1,718 0 1 1987 9–16 36.0% — 1,623 0 2
1981 23–19 54.8% — 1,852 0 2 1988 12–17 41.4% — 1,613 0 2
1982 18–20 47.4% — 1,828 0 2 1989 6–14 30.0% — 1,576 0 2
1983 13–20 39.4% — 1,716 0 2 1990 10–15 40.0% — 1,590 0 2
1984 2–5 28.6% — 1,686 0 2 1991 12–16 42.9% — 1,614 0 2
— — — — — — — 1992 1–7 12.5% — 1,545 0 2
— — — — — — — 1994 0–1 0.0% — 1,536 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 Mareen Louie Harper
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% — — — — — — — — — — — — 1974 2 1 3 66.7% — — — — — — — — — — — —
1969 0 1 1 0.0% — — — — — — — — — — — — 1976 — — — — 0 1 1 0.0% 1 1 2 50.0% — — — —
1970 0 1 1 0.0% — — — — — — — — — — — — 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
1971 — — — — — — — — 0 1 1 0.0% — — — — 1978 4 5 9 44.4% 3 3 6 50.0% — — — — 0 4 4 0.0%
1972 — — — — 1 1 2 50.0% 4 2 6 66.7% 0 1 1 0.0% 1979 2 6 8 25.0% 0 1 1 0.0% 0 1 1 0.0% 2 5 7 28.6%
1973 4 5 9 44.4% 7 7 14 50.0% 11 11 22 50.0% 6 7 13 46.2% 1980 7 8 15 46.7% 3 2 5 60.0% 5 2 7 71.4% 7 11 18 38.9%
1974 5 2 7 71.4% 1 2 3 33.3% 14 7 21 66.7% 4 2 6 66.7% 1981 5 7 12 41.7% 1 1 2 50.0% 1 2 3 33.3% 9 10 19 47.4%
1975 4 4 8 50.0% 0 1 1 0.0% 2 2 4 50.0% 0 4 4 0.0% 1982 4 6 10 40.0% 2 1 3 66.7% 0 2 2 0.0% 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 5 5 10 50.0% — — — — — — — — 2 5 7 28.6%
1977 0 1 1 0.0% 0 1 1 0.0% 2 1 3 66.7% 2 5 7 28.6% 1984 14 9 23 60.9% 0 1 1 0.0% 1 3 4 25.0% 3 4 7 42.9%
1978 4 2 6 66.7% 4 0 4 100.0% 1 2 3 33.3% 1 3 4 25.0% 1985 18 9 27 66.7% 0 2 2 0.0% 2 2 4 50.0% 9 5 14 64.3%
1979 10 7 17 58.8% — — — — 1 2 3 33.3% 15 13 28 53.6% 1986 8 7 15 53.3% — — — — 1 2 3 33.3% 3 8 11 27.3%
1980 7 7 14 50.0% — — — — 3 5 8 37.5% 3 8 11 27.3% 1987 6 8 14 42.9% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0%
1981 2 4 6 33.3% 2 2 4 50.0% 9 6 15 60.0% 10 7 17 58.8% 1988 8 11 19 42.1% 1 1 2 50.0% 0 2 2 0.0% 3 3 6 50.0%
1982 6 5 11 54.5% 0 1 1 0.0% 7 6 13 53.8% 5 8 13 38.5% 1989 3 9 12 25.0% — — — — 2 3 5 40.0% 1 2 3 33.3%
1983 5 5 10 50.0% — — — — 4 6 10 40.0% 4 9 13 30.8% 1990 8 10 18 44.4% — — — — 0 2 2 0.0% 2 3 5 40.0%
1984 0 2 2 0.0% — — — — 2 2 4 50.0% 0 1 1 0.0% 1991 9 11 20 45.0% — — — — 1 2 3 33.3% 2 3 5 40.0%
— — — — — — — — — — — — — — — — — 1992 1 5 6 16.7% — — — — — — — — 0 2 2 0.0%
— — — — — — — — — — — — — — — — — 1994 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 104 118 222 46.8% 10 16 26 38.5% 16 27 43 37.2% 47 78 125 37.6%

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 Mareen Louie Harper
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 1974 1524 102.4 — — — — +72 — — 57.1% +0.29 1–0 1–0 — +0.56
1969 1473 94.6 — — — — — — — 0.0% -4.50 — — — +0.08 1976 1522 100.6 — — — — — — — 42.9% -0.57 0–1 — — +0.36
1970 1460 98.9 — — — — — — — 0.0% -2.00 — 0–1 — +0.19 1977 1520 116.3 — — — — — — — 0.0% -3.50 — 0–1 — -0.35
1971 1457 104.8 — — — — — — — 33.3% -0.67 0–1 — — -0.19 1978 1589 122.4 — — — — +31 -31 — 34.1% -1.25 5–1 (83%) 2–1 (67%) 108.1 -0.33
1972 1516 107.6 — — — — — — +85 47.6% +0.24 3–0 (100%) 0–1 — +1.18 1979 1568 121.3 — — — — +25 — — 30.0% -1.90 2–4 (33%) 2–1 (67%) — +0.42
1973 1648 127.6 — — — — -75 -23 -24 50.0% -0.14 8–12 (40%) 4–4 (50%) 99.3 +4.25 1980 1714 128.5 — — — — -41 -153 -36 46.2% -0.59 12–4 (75%) 2–6 (25%) 107.6 +1.57
1974 1789 136.8 — — — — -106 -163 +40 59.5% +0.55 8–4 (67%) 2–1 (67%) 107.2 +0.93 1981 1743 134.3 — — — — -2 — -72 42.7% -0.51 7–5 (58%) 4–2 (67%) 105.0 -1.63
1975 1750 124.3 — — — — -7 — +32 38.6% -1.16 3–5 (38%) 2–1 (67%) 100.1 -0.93 1982 1655 124.8 — — — — -27 -46 — 35.5% -1.06 4–4 (50%) 1–2 (33%) 99.6 -1.27
1976 1724 127.9 — — — — -53 -75 +49 41.1% -0.80 3–5 (38%) 1–1 — -0.96 1983 1671 132.0 — — — — -14 — — 42.9% -0.43 2–1 (67%) 1–2 (33%) 100.4 -0.99
1977 1740 135.0 — — — — -68 — +42 37.0% -0.93 1–2 (33%) 0–1 — -1.45 1984 1733 127.5 — — — — +24 — -94 48.8% -0.05 7–3 (70%) 2–3 (40%) 105.0 +0.67
1978 1810 140.1 — — — — -59 -135 -22 56.8% +0.62 2–1 (67%) 1–2 (33%) 100.7 -0.22 1985 1777 143.7 — — — — +52 — -157 58.5% +0.41 8–4 (67%) 5–5 (50%) 101.8 -0.01
1979 1875 150.3 — — — — +16 — -129 53.6% +0.14 12–8 (60%) 5–4 (56%) 104.4 -0.58 1986 1680 121.2 — — — — +20 — -65 39.1% -0.55 5–3 (63%) 2–5 (29%) 97.5 +1.39
1980 1719 127.4 — — — — +24 — -38 46.7% -0.05 4–9 (31%) 2–4 (33%) 91.8 -0.63 1987 1624 119.5 — — — — +6 — -17 38.6% -0.67 3–4 (43%) 1–1 — +0.33
1981 1852 135.7 — — — — -26 -139 -64 53.7% +0.03 6–5 (55%) 3–2 (60%) 101.7 -0.47 1988 1614 129.1 — — — — +11 — — 43.3% -0.43 4–5 (44%) 5–4 (56%) 100.4 -0.29
1982 1828 133.7 — — — — -41 — 0 43.0% -0.73 9–5 (64%) 6–1 (86%) 108.1 -4.10 1989 1576 117.3 — — — — -17 — -21 32.0% -1.38 6–4 (60%) 6–1 (86%) 107.4 -1.33
1983 1717 130.9 — — — — +25 — +29 42.0% -0.68 2–3 (40%) 6–3 (67%) 100.2 -1.71 1990 1590 128.4 — — — — +10 — — 45.8% -0.14 2–7 (22%) 1–3 (25%) 94.5 +0.31
1984 1687 109.3 — — — — -20 — +88 26.7% -2.27 1–0 1–0 — -0.36 1991 1615 127.2 — — — — -4 — -50 39.4% -0.53 8–4 (67%) 4–4 (50%) 105.2 +0.46
— — — — — — — — — — — — — — — — 1992 1545 105.4 — — — — -7 — — 25.0% -1.81 0–2 1–0 — -0.11
— — — — — — — — — — — — — — — — 1994 1537 103.8 — — — — — — — 0.0% -2.50 — 0–1 — -0.17
Career 1926 140.1 — — — — -21 -76 +3 48.0% -0.26 62–60 (51%) 33–26 (56%) 104.8 -1.34 Career 1911 135.2 — — — — +7 -78 -59 42.4% -0.57 76–56 (58%) 40–42 (49%) 107.5 -0.10

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.