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

Fiorella Bonicelli vs Kathy May H2H: 2-2

Fiorella Bonicelli and Kathy May are tied 2–2 in their WTA head-to-head. Across 4 main-draw meetings, Fiorella Bonicelli leads 2–1 on clay, while Kathy May leads 1–0 on grass. Most recently, Fiorella Bonicelli won the 1977 Canadian Open round of 16 6-2 7-6.

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Fiorella Bonicelli
URU Age 74
H2H
2 – 2
4 main-draw meetings
Kathy May
USA Age 70 Right-Handed 173 cm / 5'8"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Fiorella Bonicelli 6-2 7-6 Kathy May Match data Aug 19, 1977* R16 Canadian Open WTA 250 Clay
Kathy May 6-3 6-3 Fiorella Bonicelli Match data Aug 14, 1976* SF Indianapolis WTA 250 Clay
Fiorella Bonicelli 6-2 6-2 Kathy May Match data Jul 18, 1975* R16 Kitzbuhel WTA 250 Clay
Kathy May 4-6 7-6 6-3 Fiorella Bonicelli Match data Aug 31, 1973* R128 US Open 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
Fiorella Bonicelli — — — 1,868 137 98 58.3% 0 0 0 0 12 12
Kathy May — — — 1,908 111 89 55.5% 0 0 0 0 6 6

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 Fiorella Bonicelli Kathy May
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 1971 0–1 0.0% — 1,497 0 0
16 1968 1–2 33.3% — 1,509 0 0 1972 4–2 66.7% — 1,536 0 0
17 1969 11–8 57.9% — 1,604 0 0 1973 6–1 85.7% — 1,626 0 1
18 1970 11–5 68.8% — 1,702 0 2 1974 16–5 76.2% — 1,713 0 4
19 1971 12–10 54.5% — 1,701 0 6 1975 14–13 51.9% — 1,748 0 5
20 1972 26–16 61.9% — 1,796 0 9 1976 15–13 53.6% — 1,812 0 6
21 1973 24–11 68.6% — 1,842 0 11 1977 14–16 46.7% — 1,802 0 6
22 1974 6–4 60.0% — 1,800 0 11 1978 21–16 56.8% — 1,829 0 6
23 1975 12–13 48.0% — 1,774 0 12 1979 15–12 55.6% — 1,829 0 6
24 1976 14–8 63.6% — 1,776 0 12 1980 4–8 33.3% — 1,731 0 6
25 1977 9–10 47.4% — 1,763 0 12 1981 1–1 50.0% — 1,713 0 6
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 — — — — — — —
34 — — — — — — — 1990 1–1 50.0% — 1,705 0 6

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 Fiorella Bonicelli Kathy May
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 %
15 — — — — — — — — — — — — — — — — — 1971 0 1 1 0.0% — — — — — — — — — — — —
16 1968 — — — — 1 2 3 33.3% — — — — — — — — 1972 4 2 6 66.7% — — — — — — — — — — — —
17 1969 — — — — 8 4 12 66.7% 3 4 7 42.9% — — — — 1973 5 0 5 100.0% — — — — 1 1 2 50.0% — — — —
18 1970 — — — — 10 3 13 76.9% 1 2 3 33.3% — — — — 1974 7 0 7 100.0% 0 1 1 0.0% 8 3 11 72.7% 1 1 2 50.0%
19 1971 — — — — 10 7 17 58.8% 1 3 4 25.0% — — — — 1975 0 1 1 0.0% 4 7 11 36.4% 3 2 5 60.0% 0 1 1 0.0%
20 1972 0 1 1 0.0% 15 9 24 62.5% 8 6 14 57.1% — — — — 1976 1 1 2 50.0% 11 6 17 64.7% 0 2 2 0.0% 3 4 7 42.9%
21 1973 — — — — 19 8 27 70.4% 5 3 8 62.5% — — — — 1977 1 2 3 33.3% 7 7 14 50.0% 3 3 6 50.0% 3 4 7 42.9%
22 1974 — — — — 4 3 7 57.1% 2 1 3 66.7% — — — — 1978 5 5 10 50.0% 6 5 11 54.5% 2 1 3 66.7% 8 5 13 61.5%
23 1975 2 2 4 50.0% 9 9 18 50.0% 1 2 3 33.3% — — — — 1979 6 4 10 60.0% 1 1 2 50.0% 2 3 5 40.0% 6 4 10 60.0%
24 1976 — — — — 14 7 21 66.7% 0 1 1 0.0% — — — — 1980 1 2 3 33.3% — — — — 1 2 3 33.3% 0 3 3 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% — — — — — — — — — — — — — — — — — — — — — — — — —
34 — — — — — — — — — — — — — — — — — 1990 1 1 2 50.0% — — — — — — — — — — — —
Career — 3 4 7 42.9% 103 67 170 60.6% 23 26 49 46.9% — — — — — 31 19 50 62.0% 29 27 56 51.8% 20 17 37 54.1% 21 22 43 48.8%

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 Fiorella Bonicelli Kathy May
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
15 — — — — — — — — — — — — — — — — 1971 1497 102.9 — — — — — — — 33.3% -1.00 0–1 — — -0.25
16 1968 1510 98.3 — — — — — — — 40.0% -0.60 1–0 — — -0.19 1972 1537 105.3 — — — — +66 — — 57.1% +0.71 2–0 — — +1.22
17 1969 1604 117.2 — — — — — +35 -68 61.0% +0.41 0–3 (0%) — — -0.11 1973 1626 119.7 — — — — +97 — — 76.5% +2.24 2–1 (67%) 1–1 — +1.52
18 1970 1702 116.4 — — — — — +53 -159 61.8% +0.44 3–1 (75%) — — +1.28 1974 1713 120.9 — — — — +112 — -31 70.8% +1.44 4–2 (67%) 2–1 (67%) 103.0 +4.53
19 1971 1702 122.1 — — — — — +58 -185 54.9% +0.33 3–4 (43%) — — +2.08 1975 1749 141.0 — — — — — -194 -46 53.3% +0.27 2–4 (33%) 4–3 (57%) 98.8 -2.15
20 1972 1796 137.0 — — — — — +57 -166 58.0% +0.53 10–6 (63%) 4–2 (67%) 105.5 -0.59 1976 1812 121.0 — — — — -28 -89 — 48.4% -0.44 8–2 (80%) 5–0 (100%) 111.1 -1.24
21 1973 1842 136.2 — — — — — +53 -147 63.0% +0.73 8–3 (73%) 6–4 (60%) 103.3 +0.33 1977 1803 147.7 — — — — +22 -55 -100 54.0% -0.14 1–6 (14%) 5–1 (83%) 97.8 -3.29
22 1974 1800 119.7 — — — — — +33 -78 66.7% +1.33 1–2 (33%) — — +0.49 1978 1830 146.4 — — — — +43 -105 -94 58.5% +0.80 4–6 (40%) 2–4 (33%) 97.7 -1.49
23 1975 1774 138.4 — — — — -137 +22 -84 51.7% +0.29 6–6 (50%) 1–3 (25%) 98.0 -2.39 1979 1830 136.1 — — — — +67 — -99 50.0% -0.12 6–2 (75%) 3–1 (75%) 104.8 +0.55
24 1976 1777 132.4 — — — — — +29 — 59.2% +0.84 4–1 (80%) 2–1 (67%) 103.9 -0.37 1980 1731 114.5 — — — — +40 — -26 39.3% -0.71 1–3 (25%) 1–0 — -0.13
25 1977 1763 128.8 — — — — — +1 -63 50.0% -0.02 2–4 (33%) 3–2 (60%) 98.6 -0.83 1981 1713 106.4 — — — — — — — 60.0% +2.00 0–1 0–1 — +0.05
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 — — — — — — — — — — — — — — — —
34 — — — — — — — — — — — — — — — — 1990 1705 99.6 — — — — — — — 40.0% -0.40 1–0 0–1 — +0.11
Career — 1868 138.2 — — — — -137 +40 -127 57.4% +0.47 40–35 (53%) 18–14 (56%) 102.7 -0.67 — 1909 141.8 — — — — +50 -105 -61 55.0% +0.31 31–28 (53%) 23–13 (64%) 107.6 -0.29

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.