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

Kazuko Sawamatsu vs Fiorella Bonicelli H2H: 3-1

Kazuko Sawamatsu holds a 3–1 lead over Fiorella Bonicelli in their WTA head-to-head. Across 4 main-draw meetings, Kazuko Sawamatsu leads 3–1 on clay. Most recently, Kazuko Sawamatsu won the 1975 Tokyo Japan Open round robin 1-6 6-4 7-5.

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Kazuko Sawamatsu
JPN Age 75 Right-Handed
H2H
3 – 1
4 main-draw meetings
Fiorella Bonicelli
URU Age 74

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kazuko Sawamatsu 1-6 6-4 7-5 Fiorella Bonicelli Match data Nov 3, 1975 RR Tokyo Japan Open WTA 250 Clay
Kazuko Sawamatsu 7-6 6-3 Fiorella Bonicelli Match data Jun 12, 1975* R16 Roland Garros Grand Slam Clay
Kazuko Sawamatsu 6-3 2-6 6-4 Fiorella Bonicelli Match data Jun 16, 1973* QF Hamburg Open WTA 250 Clay
Fiorella Bonicelli 6-2 3-6 6-4 Kazuko Sawamatsu Match data Jun 7, 1973* R32 Italian Open WTA 250 Clay

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
Kazuko Sawamatsu — — — 1,954 179 100 64.2% 0 0 0 1 8 9
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.

Age Kazuko Sawamatsu Fiorella Bonicelli
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1968 1–2 33.3% — 1,509 0 0
17 1968 9–7 56.2% — 1,556 0 0 1969 11–8 57.9% — 1,604 0 0
18 1969 16–8 66.7% — 1,674 0 1 1970 11–5 68.8% — 1,702 0 2
19 1970 10–8 55.6% — 1,727 0 2 1971 12–10 54.5% — 1,701 0 6
20 1971 18–10 64.3% — 1,826 0 3 1972 26–16 61.9% — 1,796 0 9
21 1972 28–16 63.6% — 1,848 0 6 1973 24–11 68.6% — 1,842 0 11
22 1973 38–21 64.4% — 1,825 0 6 1974 6–4 60.0% — 1,800 0 11
23 1974 37–20 64.9% — 1,900 0 8 1975 12–13 48.0% — 1,774 0 12
24 1975 23–10 69.7% — 1,954 0 9 1976 14–8 63.6% — 1,776 0 12
25 — — — — — — — 1977 9–10 47.4% — 1,763 0 12
26 — — — — — — — 1978 10–9 52.6% — 1,742 0 12
30 — — — — — — — 1982 0–1 0.0% — 1,728 0 12
32 — — — — — — — 1984 1–1 50.0% — 1,717 0 12

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Kazuko Sawamatsu 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 %
16 — — — — — — — — — — — — — — — — — 1968 — — — — 1 2 3 33.3% — — — — — — — —
17 1968 — — — — 9 5 14 64.3% 0 2 2 0.0% — — — — 1969 — — — — 8 4 12 66.7% 3 4 7 42.9% — — — —
18 1969 — — — — 13 6 19 68.4% 3 2 5 60.0% — — — — 1970 — — — — 10 3 13 76.9% 1 2 3 33.3% — — — —
19 1970 — — — — 3 4 7 42.9% 4 4 8 50.0% — — — — 1971 — — — — 10 7 17 58.8% 1 3 4 25.0% — — — —
20 1971 — — — — 4 4 8 50.0% 14 6 20 70.0% — — — — 1972 0 1 1 0.0% 15 9 24 62.5% 8 6 14 57.1% — — — —
21 1972 1 1 2 50.0% 11 7 18 61.1% 13 8 21 61.9% 3 0 3 100.0% 1973 — — — — 19 8 27 70.4% 5 3 8 62.5% — — — —
22 1973 3 1 4 75.0% 18 8 26 69.2% 16 9 25 64.0% 1 3 4 25.0% 1974 — — — — 4 3 7 57.1% 2 1 3 66.7% — — — —
23 1974 6 1 7 85.7% 11 9 20 55.0% 17 9 26 65.4% 3 1 4 75.0% 1975 2 2 4 50.0% 9 9 18 50.0% 1 2 3 33.3% — — — —
24 1975 — — — — 19 7 26 73.1% 4 3 7 57.1% — — — — 1976 — — — — 14 7 21 66.7% 0 1 1 0.0% — — — —
25 — — — — — — — — — — — — — — — — — 1977 1 1 2 50.0% 6 8 14 42.9% 2 1 3 66.7% — — — —
26 — — — — — — — — — — — — — — — — — 1978 — — — — 6 5 11 54.5% 0 3 3 0.0% — — — —
30 — — — — — — — — — — — — — — — — — 1982 — — — — 0 1 1 0.0% — — — — — — — —
32 — — — — — — — — — — — — — — — — — 1984 — — — — 1 1 2 50.0% — — — — — — — —
Career — 10 3 13 76.9% 88 50 138 63.8% 71 43 114 62.3% 7 4 11 63.6% — 3 4 7 42.9% 103 67 170 60.6% 23 26 49 46.9% — — — —

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Kazuko Sawamatsu 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
16 — — — — — — — — — — — — — — — — 1968 1510 98.3 — — — — — — — 40.0% -0.60 1–0 — — -0.19
17 1968 1556 119.1 — — — — — +59 — 56.3% +0.87 2–0 — — +0.07 1969 1604 117.2 — — — — — +35 -68 61.0% +0.41 0–3 (0%) — — -0.11
18 1969 1674 127.4 — — — — — +49 -122 64.7% +1.25 2–1 (67%) — — +0.72 1970 1702 116.4 — — — — — +53 -159 61.8% +0.44 3–1 (75%) — — +1.28
19 1970 1727 133.7 — — — — — -29 -107 59.1% +0.75 2–6 (25%) — — -1.68 1971 1702 122.1 — — — — — +58 -185 54.9% +0.33 3–4 (43%) — — +2.08
20 1971 1827 139.8 — — — — — -118 0 59.3% +0.81 6–1 (86%) 1–0 — -2.27 1972 1796 137.0 — — — — — +57 -166 58.0% +0.53 10–6 (63%) 4–2 (67%) 105.5 -0.59
21 1972 1848 149.8 — — — — -200 -59 +3 61.1% +1.22 5–4 (56%) — — -3.87 1973 1842 136.2 — — — — — +53 -147 63.0% +0.73 8–3 (73%) 6–4 (60%) 103.3 +0.33
22 1973 1826 145.5 — — — — -160 +61 +45 60.9% +0.99 10–5 (67%) 3–4 (43%) 104.0 +1.60 1974 1800 119.7 — — — — — +33 -78 66.7% +1.33 1–2 (33%) — — +0.49
23 1974 1900 150.9 — — — — -79 -49 +35 61.7% +0.94 8–2 (80%) 4–3 (57%) 106.4 -3.51 1975 1774 138.4 — — — — -137 +22 -84 51.7% +0.29 6–6 (50%) 1–3 (25%) 98.0 -2.39
24 1975 1955 150.1 — — — — — +26 -50 64.9% +1.09 6–2 (75%) 3–1 (75%) 106.5 -0.94 1976 1777 132.4 — — — — — +29 — 59.2% +0.84 4–1 (80%) 2–1 (67%) 103.9 -0.37
25 — — — — — — — — — — — — — — — — 1977 1763 128.8 — — — — — +1 -63 50.0% -0.02 2–4 (33%) 3–2 (60%) 98.6 -0.83
26 — — — — — — — — — — — — — — — — 1978 1743 134.2 — — — — — +42 -82 55.8% +0.28 1–4 (20%) 2–2 (50%) 97.2 -1.32
30 — — — — — — — — — — — — — — — — 1982 1728 102.7 — — — — — — — 0.0% -3.00 — — — -0.22
32 — — — — — — — — — — — — — — — — 1984 1717 101.4 — — — — — — — 50.0% +0.67 1–1 — — +0.28
Career — 1955 150.4 — — — — -131 +6 +3 61.3% +1.01 41–21 (66%) 11–8 (58%) 110.7 -3.61 — 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.