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

Ann Kiyomura Hayashi vs Barbara Potter H2H: 1-2

Barbara Potter holds a 2–1 lead over Ann Kiyomura Hayashi in their WTA head-to-head. Across 3 main-draw meetings, Barbara Potter leads 2–1 on carpet. Most recently, Barbara Potter won the 1983 Washington Open round of 16 6-1 6-2.

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
1 – 2
3 main-draw meetings
Barbara Potter
USA Age 64 Left-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Barbara Potter 6-1 6-2 Ann Kiyomura Hayashi Match data Jan 3, 1983 R16 Washington Open WTA 250 Carpet
Barbara Potter 6-2 6-0 Ann Kiyomura Hayashi Match data Mar 5, 1982* R16 Los Angeles WTA 500 Carpet
Ann Kiyomura Hayashi 4-6 6-4 7-6 Barbara Potter Match data Sep 18, 1981* R16 Tokyo Sillook WTA 250 Carpet

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
Barbara Potter #112 #8 63 2,096 299 190 61.1% 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.

Ann Kiyomura Hayashi Barbara Potter
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 0–1 0.0% — 1,488 0 0 1978 4–7 36.4% — 1,533 0 0
1969 0–1 0.0% — 1,473 0 0 1979 8–22 26.7% — 1,620 0 0
1970 0–1 0.0% — 1,459 0 0 1980 23–21 52.3% — 1,864 0 0
1971 0–1 0.0% — 1,457 0 0 1981 47–23 67.1% #10 1,941 0 0
1972 5–4 55.6% — 1,516 0 0 1982 43–22 66.2% #8 1,997 0 2
1973 28–30 48.3% — 1,648 0 0 1983 28–20 58.3% — 1,850 0 2
1974 24–13 64.9% — 1,789 0 0 1984 35–17 67.3% #12 1,952 0 2
1975 7–12 36.8% — 1,749 0 0 1985 31–16 66.0% #15 1,899 0 3
1976 9–16 36.0% — 1,724 0 0 1986 14–10 58.3% #26 1,881 0 3
1977 4–8 33.3% — 1,740 0 0 1987 25–13 65.8% #12 1,895 0 4
1978 10–7 58.8% — 1,809 0 1 1988 36–14 72.0% #10 1,918 0 5
1979 26–22 54.2% — 1,874 0 1 1989 5–5 50.0% #106 1,844 0 5
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 Barbara Potter
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% — — — — — — — — — — — — 1978 0 2 2 0.0% — — — — 2 2 4 50.0% 2 3 5 40.0%
1969 0 1 1 0.0% — — — — — — — — — — — — 1979 4 8 12 33.3% 0 3 3 0.0% 1 3 4 25.0% 3 8 11 27.3%
1970 0 1 1 0.0% — — — — — — — — — — — — 1980 6 5 11 54.5% — — — — 2 3 5 40.0% 15 13 28 53.6%
1971 — — — — — — — — 0 1 1 0.0% — — — — 1981 8 3 11 72.7% — — — — 12 6 18 66.7% 27 14 41 65.9%
1972 — — — — 1 1 2 50.0% 4 2 6 66.7% 0 1 1 0.0% 1982 5 5 10 50.0% 1 1 2 50.0% 9 6 15 60.0% 28 10 38 73.7%
1973 4 5 9 44.4% 7 7 14 50.0% 11 11 22 50.0% 6 7 13 46.2% 1983 4 3 7 57.1% 2 2 4 50.0% 12 7 19 63.2% 10 8 18 55.6%
1974 5 2 7 71.4% 1 2 3 33.3% 14 7 21 66.7% 4 2 6 66.7% 1984 7 4 11 63.6% — — — — 11 4 15 73.3% 17 9 26 65.4%
1975 4 4 8 50.0% 0 1 1 0.0% 2 2 4 50.0% 0 4 4 0.0% 1985 12 4 16 75.0% 2 2 4 50.0% 8 3 11 72.7% 9 7 16 56.3%
1976 0 1 1 0.0% 2 2 4 50.0% 2 4 6 33.3% 5 9 14 35.7% 1986 7 3 10 70.0% — — — — 1 1 2 50.0% 6 6 12 50.0%
1977 0 1 1 0.0% 0 1 1 0.0% 2 1 3 66.7% 2 5 7 28.6% 1987 7 5 12 58.3% — — — — 1 1 2 50.0% 17 7 24 70.8%
1978 4 2 6 66.7% 4 0 4 100.0% 1 2 3 33.3% 1 3 4 25.0% 1988 25 9 34 73.5% — — — — 9 3 12 75.0% 2 2 4 50.0%
1979 10 7 17 58.8% — — — — 1 2 3 33.3% 15 13 28 53.6% 1989 4 3 7 57.1% — — — — — — — — 1 2 3 33.3%
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 89 54 143 62.2% 5 8 13 38.5% 68 39 107 63.6% 137 89 226 60.6%

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 Barbara Potter
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 1978 1533 114.2 — — — — +62 — +55 35.7% -1.14 4–2 (67%) 1–1 — +1.22
1969 1473 94.6 — — — — — — — 0.0% -4.50 — — — +0.08 1979 1620 143.0 — — — — +30 -114 -40 30.3% -0.89 4–6 (40%) 1–8 (11%) 95.5 -1.88
1970 1460 98.9 — — — — — — — 0.0% -2.00 — 0–1 — +0.19 1980 1864 154.9 — — — — +9 — -289 54.5% +0.43 3–10 (23%) 5–4 (56%) 96.7 -0.89
1971 1457 104.8 — — — — — — — 33.3% -0.67 0–1 — — -0.19 1981 1941 150.3 — — — — -3 — -143 63.1% +0.79 12–7 (63%) 9–10 (47%) 101.8 -1.85
1972 1516 107.6 — — — — — — +85 47.6% +0.24 3–0 (100%) 0–1 — +1.18 1982 1997 162.5 — — — — +57 — -125 63.3% +0.89 10–7 (59%) 12–14 (46%) 102.4 -2.63
1973 1648 127.6 — — — — -75 -23 -24 50.0% -0.14 8–12 (40%) 4–4 (50%) 99.3 +4.25 1983 1851 139.2 — — — — +53 -245 +13 58.6% +0.77 6–9 (40%) 8–8 (50%) 93.1 +1.42
1974 1789 136.8 — — — — -106 -163 +40 59.5% +0.55 8–4 (67%) 2–1 (67%) 107.2 +0.93 1984 1952 157.5 — — — — -8 — -14 67.0% +1.24 3–7 (30%) 8–4 (67%) 94.3 -1.32
1975 1750 124.3 — — — — -7 — +32 38.6% -1.16 3–5 (38%) 2–1 (67%) 100.1 -0.93 1985 1900 142.4 — — — — -8 -289 +64 61.9% +0.74 8–7 (53%) 12–5 (71%) 102.4 +0.26
1976 1724 127.9 — — — — -53 -75 +49 41.1% -0.80 3–5 (38%) 1–1 — -0.96 1986 1881 145.2 — — — — +12 — — 56.1% +0.37 4–5 (44%) 5–4 (56%) 100.5 -2.11
1977 1740 135.0 — — — — -68 — +42 37.0% -0.93 1–2 (33%) 0–1 — -1.45 1987 1895 145.4 — — — — +28 — — 64.3% +0.85 6–4 (60%) 7–2 (78%) 102.9 +1.54
1978 1810 140.1 — — — — -59 -135 -22 56.8% +0.62 2–1 (67%) 1–2 (33%) 100.7 -0.22 1988 1919 147.3 — — — — +6 — +51 71.4% +1.21 4–8 (33%) 12–3 (80%) 100.4 +1.81
1979 1875 150.3 — — — — +16 — -129 53.6% +0.14 12–8 (60%) 5–4 (56%) 104.4 -0.58 1989 1845 116.8 — — — — -10 — — 52.2% -0.09 1–2 (33%) 1–2 (33%) 96.3 +0.54
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 2096 155.7 — — — — +17 -225 -44 59.9% +0.67 65–74 (47%) 81–65 (55%) 98.8 -0.80

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.