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

Ann Kiyomura Hayashi vs Fiorella Bonicelli H2H: 0-1

Fiorella Bonicelli holds a 1–0 lead over Ann Kiyomura Hayashi in their WTA head-to-head. Across 1 main-draw meeting, Fiorella Bonicelli leads 1–0 on grass. Most recently, Fiorella Bonicelli won the 1973 Orange semifinal 6-1 6-4.

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Ann Kiyomura Hayashi
USA
H2H
0 – 1
1 main-draw meetings
Fiorella Bonicelli
URU Age 74

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Fiorella Bonicelli 6-1 6-4 Ann Kiyomura Hayashi Match data Aug 25, 1973* SF Orange WTA 250 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
Fiorella Bonicelli — — — 1,868 137 98 58.3% 0 0 0 0 12 12

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 Fiorella Bonicelli
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 0–1 0.0% — 1,488 0 0 1968 1–2 33.3% — 1,509 0 0
1969 0–1 0.0% — 1,473 0 0 1969 11–8 57.9% — 1,604 0 0
1970 0–1 0.0% — 1,459 0 0 1970 11–5 68.8% — 1,702 0 2
1971 0–1 0.0% — 1,457 0 0 1971 12–10 54.5% — 1,701 0 6
1972 5–4 55.6% — 1,516 0 0 1972 26–16 61.9% — 1,796 0 9
1973 28–30 48.3% — 1,648 0 0 1973 24–11 68.6% — 1,842 0 11
1974 24–13 64.9% — 1,789 0 0 1974 6–4 60.0% — 1,800 0 11
1975 7–12 36.8% — 1,749 0 0 1975 12–13 48.0% — 1,774 0 12
1976 9–16 36.0% — 1,724 0 0 1976 14–8 63.6% — 1,776 0 12
1977 4–8 33.3% — 1,740 0 0 1977 9–10 47.4% — 1,763 0 12
1978 10–7 58.8% — 1,809 0 1 1978 10–9 52.6% — 1,742 0 12
1979 26–22 54.2% — 1,874 0 1 1982 0–1 0.0% — 1,728 0 12
1980 13–20 39.4% — 1,718 0 1 1984 1–1 50.0% — 1,717 0 12
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 Fiorella Bonicelli
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% — — — — — — — — — — — — 1968 — — — — 1 2 3 33.3% — — — — — — — —
1969 0 1 1 0.0% — — — — — — — — — — — — 1969 — — — — 8 4 12 66.7% 3 4 7 42.9% — — — —
1970 0 1 1 0.0% — — — — — — — — — — — — 1970 — — — — 10 3 13 76.9% 1 2 3 33.3% — — — —
1971 — — — — — — — — 0 1 1 0.0% — — — — 1971 — — — — 10 7 17 58.8% 1 3 4 25.0% — — — —
1972 — — — — 1 1 2 50.0% 4 2 6 66.7% 0 1 1 0.0% 1972 0 1 1 0.0% 15 9 24 62.5% 8 6 14 57.1% — — — —
1973 4 5 9 44.4% 7 7 14 50.0% 11 11 22 50.0% 6 7 13 46.2% 1973 — — — — 19 8 27 70.4% 5 3 8 62.5% — — — —
1974 5 2 7 71.4% 1 2 3 33.3% 14 7 21 66.7% 4 2 6 66.7% 1974 — — — — 4 3 7 57.1% 2 1 3 66.7% — — — —
1975 4 4 8 50.0% 0 1 1 0.0% 2 2 4 50.0% 0 4 4 0.0% 1975 2 2 4 50.0% 9 9 18 50.0% 1 2 3 33.3% — — — —
1976 0 1 1 0.0% 2 2 4 50.0% 2 4 6 33.3% 5 9 14 35.7% 1976 — — — — 14 7 21 66.7% 0 1 1 0.0% — — — —
1977 0 1 1 0.0% 0 1 1 0.0% 2 1 3 66.7% 2 5 7 28.6% 1977 1 1 2 50.0% 6 8 14 42.9% 2 1 3 66.7% — — — —
1978 4 2 6 66.7% 4 0 4 100.0% 1 2 3 33.3% 1 3 4 25.0% 1978 — — — — 6 5 11 54.5% 0 3 3 0.0% — — — —
1979 10 7 17 58.8% — — — — 1 2 3 33.3% 15 13 28 53.6% 1982 — — — — 0 1 1 0.0% — — — — — — — —
1980 7 7 14 50.0% — — — — 3 5 8 37.5% 3 8 11 27.3% 1984 — — — — 1 1 2 50.0% — — — — — — — —
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 3 4 7 42.9% 103 67 170 60.6% 23 26 49 46.9% — — — —

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 Fiorella Bonicelli
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 1968 1510 98.3 — — — — — — — 40.0% -0.60 1–0 — — -0.19
1969 1473 94.6 — — — — — — — 0.0% -4.50 — — — +0.08 1969 1604 117.2 — — — — — +35 -68 61.0% +0.41 0–3 (0%) — — -0.11
1970 1460 98.9 — — — — — — — 0.0% -2.00 — 0–1 — +0.19 1970 1702 116.4 — — — — — +53 -159 61.8% +0.44 3–1 (75%) — — +1.28
1971 1457 104.8 — — — — — — — 33.3% -0.67 0–1 — — -0.19 1971 1702 122.1 — — — — — +58 -185 54.9% +0.33 3–4 (43%) — — +2.08
1972 1516 107.6 — — — — — — +85 47.6% +0.24 3–0 (100%) 0–1 — +1.18 1972 1796 137.0 — — — — — +57 -166 58.0% +0.53 10–6 (63%) 4–2 (67%) 105.5 -0.59
1973 1648 127.6 — — — — -75 -23 -24 50.0% -0.14 8–12 (40%) 4–4 (50%) 99.3 +4.25 1973 1842 136.2 — — — — — +53 -147 63.0% +0.73 8–3 (73%) 6–4 (60%) 103.3 +0.33
1974 1789 136.8 — — — — -106 -163 +40 59.5% +0.55 8–4 (67%) 2–1 (67%) 107.2 +0.93 1974 1800 119.7 — — — — — +33 -78 66.7% +1.33 1–2 (33%) — — +0.49
1975 1750 124.3 — — — — -7 — +32 38.6% -1.16 3–5 (38%) 2–1 (67%) 100.1 -0.93 1975 1774 138.4 — — — — -137 +22 -84 51.7% +0.29 6–6 (50%) 1–3 (25%) 98.0 -2.39
1976 1724 127.9 — — — — -53 -75 +49 41.1% -0.80 3–5 (38%) 1–1 — -0.96 1976 1777 132.4 — — — — — +29 — 59.2% +0.84 4–1 (80%) 2–1 (67%) 103.9 -0.37
1977 1740 135.0 — — — — -68 — +42 37.0% -0.93 1–2 (33%) 0–1 — -1.45 1977 1763 128.8 — — — — — +1 -63 50.0% -0.02 2–4 (33%) 3–2 (60%) 98.6 -0.83
1978 1810 140.1 — — — — -59 -135 -22 56.8% +0.62 2–1 (67%) 1–2 (33%) 100.7 -0.22 1978 1743 134.2 — — — — — +42 -82 55.8% +0.28 1–4 (20%) 2–2 (50%) 97.2 -1.32
1979 1875 150.3 — — — — +16 — -129 53.6% +0.14 12–8 (60%) 5–4 (56%) 104.4 -0.58 1982 1728 102.7 — — — — — — — 0.0% -3.00 — — — -0.22
1980 1719 127.4 — — — — +24 — -38 46.7% -0.05 4–9 (31%) 2–4 (33%) 91.8 -0.63 1984 1717 101.4 — — — — — — — 50.0% +0.67 1–1 — — +0.28
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 1868 138.2 — — — — -137 +40 -127 57.4% +0.47 40–35 (53%) 18–14 (56%) 102.7 -0.67

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.