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

Helga Masthoff vs Fiorella Bonicelli H2H: 6-1

Helga Masthoff holds a 6–1 lead over Fiorella Bonicelli in their WTA head-to-head. Across 7 main-draw meetings, Helga Masthoff leads 5–1 on clay and 1–0 on grass. Most recently, Helga Masthoff won the 1978 Monte Carlo round of 16 6-1 6-4.

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Helga Masthoff
FRG Age 84 Right-Handed
H2H
6 – 1
7 main-draw meetings
Fiorella Bonicelli
URU Age 74

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Helga Masthoff 6-1 6-4 Fiorella Bonicelli Match data Apr 9, 1978* R16 Monte Carlo WTA 250 Clay
Helga Masthoff 2-6 7-5 7-5 Fiorella Bonicelli Match data Jun 22, 1977* R128 Wimbledon Grand Slam Grass
Helga Masthoff 6-4 6-2 Fiorella Bonicelli Match data Apr 18, 1976* F Monte Carlo WTA 250 Clay
Helga Masthoff 6-7 6-4 6-4 Fiorella Bonicelli Match data Jul 11, 1975* R16 Bastad WTA 250 Clay
Fiorella Bonicelli 6-4 7-5 Helga Masthoff Match data Dec 2, 1972* SF Buenos Aires WTA 250 Clay
Helga Masthoff 6-2 1-6 6-0 Fiorella Bonicelli Match data Jul 6, 1971* R16 Venice WTA 250 Clay
Helga Masthoff 6-1 6-2 Fiorella Bonicelli Match data Jul 11, 1970* SF Dusseldorf 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
Helga Masthoff — — — 2,113 391 115 77.3% 0 0 0 4 46 50
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 Helga Masthoff Fiorella Bonicelli
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1968 1–2 33.3% — 1,509 0 0
17 — — — — — — — 1969 11–8 57.9% — 1,604 0 0
18 — — — — — — — 1970 11–5 68.8% — 1,702 0 2
19 — — — — — — — 1971 12–10 54.5% — 1,701 0 6
20 — — — — — — — 1972 26–16 61.9% — 1,796 0 9
21 — — — — — — — 1973 24–11 68.6% — 1,842 0 11
22 — — — — — — — 1974 6–4 60.0% — 1,800 0 11
23 — — — — — — — 1975 12–13 48.0% — 1,774 0 12
24 — — — — — — — 1976 14–8 63.6% — 1,776 0 12
25 — — — — — — — 1977 9–10 47.4% — 1,763 0 12
26 1968 29–13 69.0% — 1,730 0 1 1978 10–9 52.6% — 1,742 0 12
27 1969 45–13 77.6% — 1,906 0 10 — — — — — — —
28 1970 53–12 81.5% — 2,047 0 15 — — — — — — —
29 1971 42–9 82.4% — 2,084 0 23 — — — — — — —
30 1972 29–12 70.7% — 2,023 0 27 1982 0–1 0.0% — 1,728 0 12
31 1973 40–13 75.5% — 2,087 0 30 — — — — — — —
32 1974 27–10 73.0% — 2,019 0 33 1984 1–1 50.0% — 1,717 0 12
33 1975 25–8 75.8% — 1,998 0 37 — — — — — — —
34 1976 34–8 81.0% — 1,950 0 42 — — — — — — —
35 1977 18–4 81.8% — 1,941 0 45 — — — — — — —
36 1978 13–5 72.2% — 1,895 0 45 — — — — — — —
37 1979 10–1 90.9% — 1,930 0 48 — — — — — — —
38 1980 26–7 78.8% — 1,873 0 50 — — — — — — —

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 Helga Masthoff 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 — — — — — — — — — — — — — — — — — 1969 — — — — 8 4 12 66.7% 3 4 7 42.9% — — — —
18 — — — — — — — — — — — — — — — — — 1970 — — — — 10 3 13 76.9% 1 2 3 33.3% — — — —
19 — — — — — — — — — — — — — — — — — 1971 — — — — 10 7 17 58.8% 1 3 4 25.0% — — — —
20 — — — — — — — — — — — — — — — — — 1972 0 1 1 0.0% 15 9 24 62.5% 8 6 14 57.1% — — — —
21 — — — — — — — — — — — — — — — — — 1973 — — — — 19 8 27 70.4% 5 3 8 62.5% — — — —
22 — — — — — — — — — — — — — — — — — 1974 — — — — 4 3 7 57.1% 2 1 3 66.7% — — — —
23 — — — — — — — — — — — — — — — — — 1975 2 2 4 50.0% 9 9 18 50.0% 1 2 3 33.3% — — — —
24 — — — — — — — — — — — — — — — — — 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 1968 2 2 4 50.0% 22 7 29 75.9% 1 1 2 50.0% 4 3 7 57.1% 1978 — — — — 6 5 11 54.5% 0 3 3 0.0% — — — —
27 1969 3 3 6 50.0% 39 7 46 84.8% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
28 1970 — — — — 45 10 55 81.8% 3 1 4 75.0% 5 1 6 83.3% — — — — — — — — — — — — — — — — —
29 1971 5 2 7 71.4% 35 5 40 87.5% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
30 1972 — — — — 28 8 36 77.8% 0 1 1 0.0% 1 3 4 25.0% 1982 — — — — 0 1 1 0.0% — — — — — — — —
31 1973 — — — — 34 10 44 77.3% 4 1 5 80.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
32 1974 — — — — 24 8 32 75.0% 3 1 4 75.0% 0 1 1 0.0% 1984 — — — — 1 1 2 50.0% — — — — — — — —
33 1975 — — — — 15 6 21 71.4% 9 2 11 81.8% — — — — — — — — — — — — — — — — — — — — —
34 1976 — — — — 29 5 34 85.3% 5 3 8 62.5% — — — — — — — — — — — — — — — — — — — — —
35 1977 — — — — 13 2 15 86.7% 1 2 3 33.3% 4 0 4 100.0% — — — — — — — — — — — — — — — — —
36 1978 — — — — 8 3 11 72.7% — — — — 3 1 4 75.0% — — — — — — — — — — — — — — — — —
37 1979 — — — — 5 1 6 83.3% — — — — — — — — — — — — — — — — — — — — — — — — —
38 1980 — — — — 23 6 29 79.3% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 10 7 17 58.8% 320 78 398 80.4% 28 14 42 66.7% 19 12 31 61.3% — 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 Helga Masthoff 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 — — — — — — — — — — — — — — — — 1969 1604 117.2 — — — — — +35 -68 61.0% +0.41 0–3 (0%) — — -0.11
18 — — — — — — — — — — — — — — — — 1970 1702 116.4 — — — — — +53 -159 61.8% +0.44 3–1 (75%) — — +1.28
19 — — — — — — — — — — — — — — — — 1971 1702 122.1 — — — — — +58 -185 54.9% +0.33 3–4 (43%) — — +2.08
20 — — — — — — — — — — — — — — — — 1972 1796 137.0 — — — — — +57 -166 58.0% +0.53 10–6 (63%) 4–2 (67%) 105.5 -0.59
21 — — — — — — — — — — — — — — — — 1973 1842 136.2 — — — — — +53 -147 63.0% +0.73 8–3 (73%) 6–4 (60%) 103.3 +0.33
22 — — — — — — — — — — — — — — — — 1974 1800 119.7 — — — — — +33 -78 66.7% +1.33 1–2 (33%) — — +0.49
23 — — — — — — — — — — — — — — — — 1975 1774 138.4 — — — — -137 +22 -84 51.7% +0.29 6–6 (50%) 1–3 (25%) 98.0 -2.39
24 — — — — — — — — — — — — — — — — 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 1968 1730 128.1 — — — — -162 +89 — 66.7% +1.31 7–8 (47%) — — -1.04 1978 1743 134.2 — — — — — +42 -82 55.8% +0.28 1–4 (20%) 2–2 (50%) 97.2 -1.32
27 1969 1907 137.1 — — — — -313 +115 — 74.0% +1.89 8–7 (53%) — — -0.20 — — — — — — — — — — — — — — — —
28 1970 2047 159.4 — — — — -330 +75 -427 79.6% +2.22 6–5 (55%) — — -5.92 — — — — — — — — — — — — — — — —
29 1971 2084 146.6 — — — — -311 +124 -455 72.0% +1.78 17–3 (85%) 2–2 (50%) 105.8 -1.82 — — — — — — — — — — — — — — — —
30 1972 2024 152.0 — — — — -290 +162 — 69.4% +1.51 4–1 (80%) 3–0 (100%) — -3.25 1982 1728 102.7 — — — — — — — 0.0% -3.00 — — — -0.22
31 1973 2088 160.2 — — — — -369 +126 -344 72.2% +1.77 8–3 (73%) 3–5 (38%) 101.3 -2.46 — — — — — — — — — — — — — — — —
32 1974 2019 153.9 — — — — — +99 -212 67.5% +1.24 8–2 (80%) 2–2 (50%) 102.8 -3.17 1984 1717 101.4 — — — — — — — 50.0% +0.67 1–1 — — +0.28
33 1975 1999 142.8 — — — — — +76 -105 71.6% +1.26 7–3 (70%) 6–3 (67%) 104.5 -0.41 — — — — — — — — — — — — — — — —
34 1976 1951 146.9 — — — — — +125 -61 76.1% +2.14 6–2 (75%) 1–2 (33%) 99.7 +1.10 — — — — — — — — — — — — — — — —
35 1977 1941 128.5 — — — — -150 +143 -91 75.5% +1.73 4–1 (80%) 3–1 (75%) 103.1 +2.07 — — — — — — — — — — — — — — — —
36 1978 1895 134.2 — — — — -97 +128 — 68.4% +1.55 2–2 (50%) 1–0 — +1.22 — — — — — — — — — — — — — — — —
37 1979 1930 131.0 — — — — — +128 — 85.7% +2.86 1–0 1–1 — +0.26 — — — — — — — — — — — — — — — —
38 1980 1873 133.5 — — — — — +139 — 73.1% +1.86 7–5 (58%) 3–2 (60%) 97.5 +1.56 — — — — — — — — — — — — — — — —
Career — 2114 153.3 — — — — -250 +115 -205 72.9% +1.76 85–42 (67%) 25–18 (58%) 104.1 -2.42 — 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.