H2H data updated: 2026-09-12 00:00 UTC

Helga Masthoff vs Naoko Sato H2H: 1-0

Helga Masthoff holds a 1–0 lead over Naoko Sato in their WTA head-to-head. Across 1 main-draw meeting, Helga Masthoff leads 1–0 on clay. Most recently, Helga Masthoff won the 1976 Hamburg Open round of 32 6-3 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.

Helga Masthoff
FRG Age 84 Right-Handed
H2H
1 – 0
1 main-draw meetings
Naoko Sato
JPN Age 71

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Helga Masthoff 6-3 6-2 Naoko Sato Match data May 20, 1976* R32 Hamburg 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
Helga Masthoff — — — 2,113 391 115 77.3% 0 0 0 4 46 50
Naoko Sato — — — 1,628 56 91 38.1% 0 0 0 0 0 0

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 Naoko Sato
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1972 2–3 40.0% — 1,504 0 0
18 — — — — — — — 1973 4–6 40.0% — 1,495 0 0
19 — — — — — — — 1974 7–16 30.4% — 1,452 0 0
20 — — — — — — — 1975 5–7 41.7% — 1,492 0 0
21 — — — — — — — 1976 4–8 33.3% — 1,530 0 0
22 — — — — — — — 1977 8–12 40.0% — 1,566 0 0
23 — — — — — — — 1978 6–7 46.2% — 1,594 0 0
24 — — — — — — — 1979 8–9 47.1% — 1,594 0 0
25 — — — — — — — 1980 11–10 52.4% — 1,592 0 0
26 1968 29–13 69.0% — 1,730 0 1 1981 1–6 14.3% — 1,531 0 0
27 1969 45–13 77.6% — 1,906 0 10 1982 0–1 0.0% — 1,520 0 0
28 1970 53–12 81.5% — 2,047 0 15 1983 0–4 0.0% — 1,467 0 0
29 1971 42–9 82.4% — 2,084 0 23 1984 0–1 0.0% — 1,458 0 0
30 1972 29–12 70.7% — 2,023 0 27 — — — — — — —
31 1973 40–13 75.5% — 2,087 0 30 — — — — — — —
32 1974 27–10 73.0% — 2,019 0 33 1987 0–1 0.0% — 1,451 0 0
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 Naoko Sato
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 %
17 — — — — — — — — — — — — — — — — — 1972 0 1 1 0.0% 0 1 1 0.0% — — — — 2 1 3 66.7%
18 — — — — — — — — — — — — — — — — — 1973 — — — — 2 4 6 33.3% 2 2 4 50.0% — — — —
19 — — — — — — — — — — — — — — — — — 1974 2 2 4 50.0% 1 6 7 14.3% 2 4 6 33.3% 0 1 1 0.0%
20 — — — — — — — — — — — — — — — — — 1975 — — — — 3 2 5 60.0% 0 2 2 0.0% 0 1 1 0.0%
21 — — — — — — — — — — — — — — — — — 1976 — — — — 0 4 4 0.0% 4 4 8 50.0% — — — —
22 — — — — — — — — — — — — — — — — — 1977 0 1 1 0.0% 1 2 3 33.3% 7 9 16 43.8% — — — —
23 — — — — — — — — — — — — — — — — — 1978 — — — — 1 2 3 33.3% 5 4 9 55.6% 0 1 1 0.0%
24 — — — — — — — — — — — — — — — — — 1979 0 2 2 0.0% — — — — 4 5 9 44.4% — — — —
25 — — — — — — — — — — — — — — — — — 1980 1 1 2 50.0% 4 4 8 50.0% 3 4 7 42.9% — — — —
26 1968 2 2 4 50.0% 22 7 29 75.9% 1 1 2 50.0% 4 3 7 57.1% 1981 0 3 3 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — —
27 1969 3 3 6 50.0% 39 7 46 84.8% — — — — 0 1 1 0.0% 1982 — — — — — — — — 0 1 1 0.0% — — — —
28 1970 — — — — 45 10 55 81.8% 3 1 4 75.0% 5 1 6 83.3% 1983 0 1 1 0.0% — — — — 0 2 2 0.0% — — — —
29 1971 5 2 7 71.4% 35 5 40 87.5% 2 2 4 50.0% — — — — 1984 — — — — — — — — 0 1 1 0.0% — — — —
30 1972 — — — — 28 8 36 77.8% 0 1 1 0.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
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% 1987 — — — — — — — — 0 1 1 0.0% — — — —
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 11 14 21.4% 13 27 40 32.5% 27 40 67 40.3% 2 4 6 33.3%

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 Naoko Sato
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
17 — — — — — — — — — — — — — — — — 1972 1505 88.1 — — — — +47 — — 36.4% -2.00 1–0 1–0 — +0.31
18 — — — — — — — — — — — — — — — — 1973 1496 92.8 — — — — — -8 +52 40.9% -1.41 1–1 — — +1.13
19 — — — — — — — — — — — — — — — — 1974 1453 91.0 — — — — +95 -59 +77 34.0% -1.11 3–4 (43%) 1–3 (25%) 97.2 +1.33
20 — — — — — — — — — — — — — — — — 1975 1493 95.6 — — — — — -27 — 40.7% -1.33 2–1 (67%) 1–1 — +0.98
21 — — — — — — — — — — — — — — — — 1976 1530 116.3 — — — — — -82 +48 28.0% -1.64 2–1 (67%) — — -0.39
22 — — — — — — — — — — — — — — — — 1977 1567 121.7 — — — — — -112 +16 43.8% -0.69 3–5 (38%) 3–1 (75%) 101.1 +1.63
23 — — — — — — — — — — — — — — — — 1978 1595 111.7 — — — — — -138 +17 48.3% -0.17 1–2 (33%) 1–1 — +0.54
24 — — — — — — — — — — — — — — — — 1979 1594 114.4 — — — — — — +13 47.4% +0.05 2–2 (50%) 1–1 — +1.58
25 — — — — — — — — — — — — — — — — 1980 1593 108.7 — — — — — -117 -11 53.2% +0.30 2–3 (40%) 1–1 — +1.74
26 1968 1730 128.1 — — — — -162 +89 — 66.7% +1.31 7–8 (47%) — — -1.04 1981 1531 97.3 — — — — -43 -32 — 23.5% -1.88 1–2 (33%) 1–1 — +0.51
27 1969 1907 137.1 — — — — -313 +115 — 74.0% +1.89 8–7 (53%) — — -0.20 1982 1520 99.4 — — — — — — — 0.0% -2.00 — — — +0.01
28 1970 2047 159.4 — — — — -330 +75 -427 79.6% +2.22 6–5 (55%) — — -5.92 1983 1467 93.8 — — — — — — — 11.1% -1.89 0–1 — — +0.48
29 1971 2084 146.6 — — — — -311 +124 -455 72.0% +1.78 17–3 (85%) 2–2 (50%) 105.8 -1.82 1984 1459 102.4 — — — — — — — 0.0% -1.50 — 0–1 — -0.02
30 1972 2024 152.0 — — — — -290 +162 — 69.4% +1.51 4–1 (80%) 3–0 (100%) — -3.25 — — — — — — — — — — — — — — — —
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 1987 1451 91.3 — — — — — — — 0.0% -5.50 — — — -0.06
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 — 1629 106.1 — — — — +45 -69 +25 39.8% -0.84 18–22 (45%) 10–10 (50%) 101.4 +6.65

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.