H2H data updated: 2026-09-13 00:00 UTC

Ann Kiyomura Hayashi vs Sherry Acker H2H: 2-0

Ann Kiyomura Hayashi holds a 2–0 lead over Sherry Acker in their WTA head-to-head. Across 2 main-draw meetings, Ann Kiyomura Hayashi leads 2–0 on hard courts. Most recently, Ann Kiyomura Hayashi won the 1980 Montreal round of 32 6-3 6-4.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Ann Kiyomura Hayashi
USA
H2H
2 – 0
2 main-draw meetings
Sherry Acker
USA Age 67 Right-Handed 173 cm / 5'8"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ann Kiyomura Hayashi 6-3 6-4 Sherry Acker Match data Jul 17, 1980* R32 Montreal WTA 250 Hard
Ann Kiyomura Hayashi 5-7 6-3 6-4 Sherry Acker Match data Sep 14, 1979* R16 Tokyo Sillook 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
Sherry Acker — — — 1,838 63 100 38.7% 0 0 0 0 0 0

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 Sherry Acker
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 0–1 0.0% — 1,488 0 0 1979 13–21 38.2% — 1,591 0 0
1969 0–1 0.0% — 1,473 0 0 1980 29–31 48.3% — 1,827 0 0
1970 0–1 0.0% — 1,459 0 0 1981 8–19 29.6% — 1,679 0 0
1971 0–1 0.0% — 1,457 0 0 1982 1–5 16.7% — 1,629 0 0
1972 5–4 55.6% — 1,516 0 0 1983 11–15 42.3% — 1,618 0 0
1973 28–30 48.3% — 1,648 0 0 1984 1–9 10.0% — 1,523 0 0
1974 24–13 64.9% — 1,789 0 0 — — — — — — —
1975 7–12 36.8% — 1,749 0 0 — — — — — — —
1976 9–16 36.0% — 1,724 0 0 — — — — — — —
1977 4–8 33.3% — 1,740 0 0 — — — — — — —
1978 10–7 58.8% — 1,809 0 1 — — — — — — —
1979 26–22 54.2% — 1,874 0 1 — — — — — — —
1980 13–20 39.4% — 1,718 0 1 — — — — — — —
1981 23–19 54.8% — 1,852 0 2 — — — — — — —
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 Sherry Acker
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% — — — — — — — — — — — — 1979 7 6 13 53.8% 3 5 8 37.5% 1 6 7 14.3% 2 4 6 33.3%
1969 0 1 1 0.0% — — — — — — — — — — — — 1980 5 6 11 45.5% 3 4 7 42.9% 4 3 7 57.1% 17 18 35 48.6%
1970 0 1 1 0.0% — — — — — — — — — — — — 1981 4 5 9 44.4% 1 2 3 33.3% 2 6 8 25.0% 1 6 7 14.3%
1971 — — — — — — — — 0 1 1 0.0% — — — — 1982 0 1 1 0.0% 0 1 1 0.0% 1 2 3 33.3% 0 1 1 0.0%
1972 — — — — 1 1 2 50.0% 4 2 6 66.7% 0 1 1 0.0% 1983 4 6 10 40.0% 0 1 1 0.0% 6 6 12 50.0% 1 2 3 33.3%
1973 4 5 9 44.4% 7 7 14 50.0% 11 11 22 50.0% 6 7 13 46.2% 1984 0 5 5 0.0% — — — — 0 2 2 0.0% 1 2 3 33.3%
1974 5 2 7 71.4% 1 2 3 33.3% 14 7 21 66.7% 4 2 6 66.7% — — — — — — — — — — — — — — — — —
1975 4 4 8 50.0% 0 1 1 0.0% 2 2 4 50.0% 0 4 4 0.0% — — — — — — — — — — — — — — — — —
1976 0 1 1 0.0% 2 2 4 50.0% 2 4 6 33.3% 5 9 14 35.7% — — — — — — — — — — — — — — — — —
1977 0 1 1 0.0% 0 1 1 0.0% 2 1 3 66.7% 2 5 7 28.6% — — — — — — — — — — — — — — — — —
1978 4 2 6 66.7% 4 0 4 100.0% 1 2 3 33.3% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
1979 10 7 17 58.8% — — — — 1 2 3 33.3% 15 13 28 53.6% — — — — — — — — — — — — — — — — —
1980 7 7 14 50.0% — — — — 3 5 8 37.5% 3 8 11 27.3% — — — — — — — — — — — — — — — — —
1981 2 4 6 33.3% 2 2 4 50.0% 9 6 15 60.0% 10 7 17 58.8% — — — — — — — — — — — — — — — — —
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 20 29 49 40.8% 7 13 20 35.0% 14 25 39 35.9% 22 33 55 40.0%

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.

Ann Kiyomura Hayashi Sherry Acker
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 1979 1591 125.4 — — — — +78 -54 -62 40.0% -0.87 2–4 (33%) 2–3 (40%) 98.5 +2.65
1969 1473 94.6 — — — — — — — 0.0% -4.50 — — — +0.08 1980 1827 146.8 — — — — +12 -281 -229 47.8% -0.02 10–8 (56%) 6–6 (50%) 106.3 -1.45
1970 1460 98.9 — — — — — — — 0.0% -2.00 — 0–1 — +0.19 1981 1680 125.6 — — — — +54 -92 -121 33.3% -0.87 2–5 (29%) 2–5 (29%) 94.0 -2.47
1971 1457 104.8 — — — — — — — 33.3% -0.67 0–1 — — -0.19 1982 1630 123.0 — — — — — — -41 33.3% -0.87 0–3 (0%) 1–2 (33%) — +0.22
1972 1516 107.6 — — — — — — +85 47.6% +0.24 3–0 (100%) 0–1 — +1.18 1983 1619 119.0 — — — — +4 — +38 39.3% -0.70 4–2 (67%) 3–4 (43%) 102.8 +0.10
1973 1648 127.6 — — — — -75 -23 -24 50.0% -0.14 8–12 (40%) 4–4 (50%) 99.3 +4.25 1984 1523 98.5 — — — — -7 — — 24.0% -1.40 1–4 (20%) 1–3 (25%) 95.3 +0.67
1974 1789 136.8 — — — — -106 -163 +40 59.5% +0.55 8–4 (67%) 2–1 (67%) 107.2 +0.93 — — — — — — — — — — — — — — — —
1975 1750 124.3 — — — — -7 — +32 38.6% -1.16 3–5 (38%) 2–1 (67%) 100.1 -0.93 — — — — — — — — — — — — — — — —
1976 1724 127.9 — — — — -53 -75 +49 41.1% -0.80 3–5 (38%) 1–1 — -0.96 — — — — — — — — — — — — — — — —
1977 1740 135.0 — — — — -68 — +42 37.0% -0.93 1–2 (33%) 0–1 — -1.45 — — — — — — — — — — — — — — — —
1978 1810 140.1 — — — — -59 -135 -22 56.8% +0.62 2–1 (67%) 1–2 (33%) 100.7 -0.22 — — — — — — — — — — — — — — — —
1979 1875 150.3 — — — — +16 — -129 53.6% +0.14 12–8 (60%) 5–4 (56%) 104.4 -0.58 — — — — — — — — — — — — — — — —
1980 1719 127.4 — — — — +24 — -38 46.7% -0.05 4–9 (31%) 2–4 (33%) 91.8 -0.63 — — — — — — — — — — — — — — — —
1981 1852 135.7 — — — — -26 -139 -64 53.7% +0.03 6–5 (55%) 3–2 (60%) 101.7 -0.47 — — — — — — — — — — — — — — — —
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 1839 135.3 — — — — +28 -149 -72 40.4% -0.56 19–26 (42%) 15–23 (39%) 97.2 -0.17

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.