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

Naoko Sato vs Betty Ann Grubb H2H: 0-1

Betty Ann Grubb holds a 1–0 lead over Naoko Sato in their WTA head-to-head. Across 1 main-draw meeting, Betty Ann Grubb leads 1–0 on grass. Most recently, Betty Ann Grubb won the 1979 Melbourne round of 32 6-1 6-1.

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Naoko Sato
JPN Age 71
H2H
0 – 1
1 main-draw meetings
Betty Ann Grubb
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Betty Ann Grubb 6-1 6-1 Naoko Sato Match data Nov 29, 1979* R32 Melbourne 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
Naoko Sato — — — 1,628 56 91 38.1% 0 0 0 0 0 0
Betty Ann Grubb — — — 1,824 124 112 52.5% 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.

Naoko Sato Betty Ann Grubb
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1972 2–3 40.0% — 1,504 0 0 1968 21–8 72.4% — 1,633 0 2
1973 4–6 40.0% — 1,495 0 0 1969 29–14 67.4% — 1,777 0 4
1974 7–16 30.4% — 1,452 0 0 1970 18–15 54.5% — 1,684 0 4
1975 5–7 41.7% — 1,492 0 0 1971 5–11 31.2% — 1,679 0 4
1976 4–8 33.3% — 1,530 0 0 1972 2–2 50.0% — 1,673 0 5
1977 8–12 40.0% — 1,566 0 0 1973 4–4 50.0% — 1,699 0 6
1978 6–7 46.2% — 1,594 0 0 1974 7–10 41.2% — 1,675 0 6
1979 8–9 47.1% — 1,594 0 0 1975 5–4 55.6% — 1,728 0 6
1980 11–10 52.4% — 1,592 0 0 1976 2–4 33.3% — 1,683 0 6
1981 1–6 14.3% — 1,531 0 0 1977 0–2 0.0% — 1,652 0 6
1982 0–1 0.0% — 1,520 0 0 1978 3–1 75.0% — 1,660 0 6
1983 0–4 0.0% — 1,467 0 0 1979 25–26 49.0% — 1,816 0 6
1984 0–1 0.0% — 1,458 0 0 1980 2–9 18.2% — 1,721 0 6
1987 0–1 0.0% — 1,451 0 0 1981 1–2 33.3% — 1,709 0 6

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.

Naoko Sato Betty Ann Grubb
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 %
1972 0 1 1 0.0% 0 1 1 0.0% — — — — 2 1 3 66.7% 1968 9 2 11 81.8% 10 3 13 76.9% 2 3 5 40.0% — — — —
1973 — — — — 2 4 6 33.3% 2 2 4 50.0% — — — — 1969 10 3 13 76.9% — — — — 14 9 23 60.9% 2 2 4 50.0%
1974 2 2 4 50.0% 1 6 7 14.3% 2 4 6 33.3% 0 1 1 0.0% 1970 6 3 9 66.7% 5 4 9 55.6% 5 6 11 45.5% 1 1 2 50.0%
1975 — — — — 3 2 5 60.0% 0 2 2 0.0% 0 1 1 0.0% 1971 2 3 5 40.0% 2 3 5 40.0% 1 2 3 33.3% 0 3 3 0.0%
1976 — — — — 0 4 4 0.0% 4 4 8 50.0% — — — — 1972 0 2 2 0.0% — — — — — — — — — — — —
1977 0 1 1 0.0% 1 2 3 33.3% 7 9 16 43.8% — — — — 1973 3 2 5 60.0% — — — — — — — — 1 2 3 33.3%
1978 — — — — 1 2 3 33.3% 5 4 9 55.6% 0 1 1 0.0% 1974 6 5 11 54.5% 1 2 3 33.3% — — — — 0 3 3 0.0%
1979 0 2 2 0.0% — — — — 4 5 9 44.4% — — — — 1975 5 3 8 62.5% — — — — — — — — 0 1 1 0.0%
1980 1 1 2 50.0% 4 4 8 50.0% 3 4 7 42.9% — — — — 1976 2 3 5 40.0% 0 1 1 0.0% — — — — — — — —
1981 0 3 3 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — — 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
1982 — — — — — — — — 0 1 1 0.0% — — — — 1979 8 9 17 47.1% 4 4 8 50.0% 9 6 15 60.0% 4 7 11 36.4%
1983 0 1 1 0.0% — — — — 0 2 2 0.0% — — — — 1980 0 1 1 0.0% 0 1 1 0.0% 2 2 4 50.0% 0 5 5 0.0%
1984 — — — — — — — — 0 1 1 0.0% — — — — 1981 1 2 3 33.3% — — — — — — — — — — — —
1987 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
Career 3 11 14 21.4% 13 27 40 32.5% 27 40 67 40.3% 2 4 6 33.3% Career 52 38 90 57.8% 22 19 41 53.7% 33 28 61 54.1% 8 25 33 24.2%

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.

Naoko Sato Betty Ann Grubb
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
1972 1505 88.1 — — — — +47 — — 36.4% -2.00 1–0 1–0 — +0.31 1968 1633 121.5 — — — — +94 +16 -113 69.8% +1.56 3–2 (60%) — — 0.00
1973 1496 92.8 — — — — — -8 +52 40.9% -1.41 1–1 — — +1.13 1969 1777 129.3 — — — — +55 — -18 64.1% +0.96 5–3 (63%) — — +1.73
1974 1453 91.0 — — — — +95 -59 +77 34.0% -1.11 3–4 (43%) 1–3 (25%) 97.2 +1.33 1970 1685 118.2 — — — — +114 -50 +6 53.4% +0.34 4–3 (57%) 1–0 — +0.50
1975 1493 95.6 — — — — — -27 — 40.7% -1.33 2–1 (67%) 1–1 — +0.98 1971 1680 131.9 — — — — +54 -42 +16 25.0% -1.81 2–0 0–2 — -2.09
1976 1530 116.3 — — — — — -82 +48 28.0% -1.64 2–1 (67%) — — -0.39 1972 1673 104.5 — — — — — — — 50.0% 0.00 — — — -0.16
1977 1567 121.7 — — — — — -112 +16 43.8% -0.69 3–5 (38%) 3–1 (75%) 101.1 +1.63 1973 1700 124.2 — — — — +39 — — 47.1% -0.35 1–0 0–1 — +0.31
1978 1595 111.7 — — — — — -138 +17 48.3% -0.17 1–2 (33%) 1–1 — +0.54 1974 1676 118.4 — — — — -14 -33 — 47.2% +0.08 1–3 (25%) 0–5 (0%) 92.5 -0.32
1979 1594 114.4 — — — — — — +13 47.4% +0.05 2–2 (50%) 1–1 — +1.58 1975 1728 114.2 — — — — +19 — — 47.4% -0.31 2–1 (67%) 2–1 (67%) 101.9 +0.34
1980 1593 108.7 — — — — — -117 -11 53.2% +0.30 2–3 (40%) 1–1 — +1.74 1976 1684 105.1 — — — — +18 — — 33.3% -0.58 — 0–2 — +0.77
1981 1531 97.3 — — — — -43 -32 — 23.5% -1.88 1–2 (33%) 1–1 — +0.51 1977 1653 100.1 — — — — — — — 20.0% -1.00 0–1 0–1 — +0.17
1982 1520 99.4 — — — — — — — 0.0% -2.00 — — — +0.01 1978 1660 112.4 — — — — — — — 75.0% +2.63 — — — +0.35
1983 1467 93.8 — — — — — — — 11.1% -1.89 0–1 — — +0.48 1979 1817 140.6 — — — — -45 -172 -41 45.3% -0.42 12–5 (71%) 5–5 (50%) 106.5 -0.93
1984 1459 102.4 — — — — — — — 0.0% -1.50 — 0–1 — -0.02 1980 1722 127.1 — — — — -73 — +67 33.3% -1.07 2–5 (29%) 1–2 (33%) 95.6 -1.30
1987 1451 91.3 — — — — — — — 0.0% -5.50 — — — -0.06 1981 1709 110.6 — — — — -33 — — 33.3% -0.50 — 0–1 — -0.04
Career 1629 106.1 — — — — +45 -69 +25 39.8% -0.84 18–22 (45%) 10–10 (50%) 101.4 +6.65 Career 1825 133.9 — — — — +19 -51 -20 51.1% +0.14 32–23 (58%) 9–20 (31%) 97.8 -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.