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

Janet Newberry vs Naoko Sato H2H: 0-1

Naoko Sato holds a 1–0 lead over Janet Newberry in their WTA head-to-head. Across 1 main-draw meeting, Naoko Sato leads 1–0 on grass. Most recently, Naoko Sato won the 1979 Sydney round of 32 6-3 4-6 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.

Janet Newberry
USA Age 73 Right-Handed 170 cm / 5'7"
H2H
0 – 1
1 main-draw meetings
Naoko Sato
JPN Age 71

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Naoko Sato 6-3 4-6 6-2 Janet Newberry Match data Dec 6, 1979* R32 Sydney WTA 500 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
Janet Newberry — — — 1,922 238 187 56.0% 0 0 0 1 7 8
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 Janet Newberry Naoko Sato
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 1968 7–5 58.3% — 1,542 0 0 — — — — — — —
15 1969 13–6 68.4% — 1,631 0 2 — — — — — — —
16 1970 20–7 74.1% — 1,718 0 5 — — — — — — —
17 1971 15–9 62.5% — 1,757 0 5 1972 2–3 40.0% — 1,504 0 0
18 1972 20–17 54.1% — 1,707 0 5 1973 4–6 40.0% — 1,495 0 0
19 1973 32–24 57.1% — 1,851 0 5 1974 7–16 30.4% — 1,452 0 0
20 1974 22–22 50.0% — 1,812 0 5 1975 5–7 41.7% — 1,492 0 0
21 1975 31–22 58.5% — 1,903 0 6 1976 4–8 33.3% — 1,530 0 0
22 1976 14–10 58.3% — 1,862 0 6 1977 8–12 40.0% — 1,566 0 0
23 1977 25–22 53.2% — 1,875 0 7 1978 6–7 46.2% — 1,594 0 0
24 1978 15–14 51.7% — 1,831 0 7 1979 8–9 47.1% — 1,594 0 0
25 1979 12–21 36.4% — 1,680 0 7 1980 11–10 52.4% — 1,592 0 0
26 1980 12–8 60.0% — 1,643 0 8 1981 1–6 14.3% — 1,531 0 0
27 — — — — — — — 1982 0–1 0.0% — 1,520 0 0
28 — — — — — — — 1983 0–4 0.0% — 1,467 0 0
29 — — — — — — — 1984 0–1 0.0% — 1,458 0 0
32 — — — — — — — 1987 0–1 0.0% — 1,451 0 0

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 Janet Newberry 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 %
14 1968 7 5 12 58.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
15 1969 12 4 16 75.0% — — — — 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
16 1970 15 3 18 83.3% 2 1 3 66.7% 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
17 1971 2 2 4 50.0% 1 1 2 50.0% 12 6 18 66.7% — — — — 1972 0 1 1 0.0% 0 1 1 0.0% — — — — 2 1 3 66.7%
18 1972 6 4 10 60.0% 6 6 12 50.0% 6 6 12 50.0% — — — — 1973 — — — — 2 4 6 33.3% 2 2 4 50.0% — — — —
19 1973 6 5 11 54.5% 10 5 15 66.7% 8 5 13 61.5% 8 9 17 47.1% 1974 2 2 4 50.0% 1 6 7 14.3% 2 4 6 33.3% 0 1 1 0.0%
20 1974 4 5 9 44.4% 1 4 5 20.0% 8 4 12 66.7% 9 9 18 50.0% 1975 — — — — 3 2 5 60.0% 0 2 2 0.0% 0 1 1 0.0%
21 1975 7 5 12 58.3% 20 9 29 69.0% 3 2 5 60.0% 1 6 7 14.3% 1976 — — — — 0 4 4 0.0% 4 4 8 50.0% — — — —
22 1976 1 2 3 33.3% 9 4 13 69.2% 2 2 4 50.0% 2 2 4 50.0% 1977 0 1 1 0.0% 1 2 3 33.3% 7 9 16 43.8% — — — —
23 1977 4 4 8 50.0% 13 7 20 65.0% 3 3 6 50.0% 5 8 13 38.5% 1978 — — — — 1 2 3 33.3% 5 4 9 55.6% 0 1 1 0.0%
24 1978 1 2 3 33.3% 7 5 12 58.3% 5 3 8 62.5% 2 4 6 33.3% 1979 0 2 2 0.0% — — — — 4 5 9 44.4% — — — —
25 1979 2 4 6 33.3% 2 5 7 28.6% 5 5 10 50.0% 1 5 6 16.7% 1980 1 1 2 50.0% 4 4 8 50.0% 3 4 7 42.9% — — — —
26 1980 6 5 11 54.5% 1 1 2 50.0% 4 0 4 100.0% — — — — 1981 0 3 3 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — —
27 — — — — — — — — — — — — — — — — — 1982 — — — — — — — — 0 1 1 0.0% — — — —
28 — — — — — — — — — — — — — — — — — 1983 0 1 1 0.0% — — — — 0 2 2 0.0% — — — —
29 — — — — — — — — — — — — — — — — — 1984 — — — — — — — — 0 1 1 0.0% — — — —
32 — — — — — — — — — — — — — — — — — 1987 — — — — — — — — 0 1 1 0.0% — — — —
Career — 73 50 123 59.3% 72 48 120 60.0% 60 41 101 59.4% 28 43 71 39.4% — 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 Janet Newberry 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
14 1968 1542 104.3 — — — — +45 — — 55.6% +0.41 2–1 (67%) — — +0.69 — — — — — — — — — — — — — — — —
15 1969 1632 120.1 — — — — +106 — -86 67.4% +1.19 2–3 (40%) — — +1.11 — — — — — — — — — — — — — — — —
16 1970 1719 128.8 — — — — +177 -163 -147 70.0% +1.70 4–4 (50%) 0–1 — +3.95 — — — — — — — — — — — — — — — —
17 1971 1758 132.0 — — — — +111 — -30 56.9% +0.65 4–1 (80%) — — +0.89 1972 1505 88.1 — — — — +47 — — 36.4% -2.00 1–0 1–0 — +0.31
18 1972 1707 131.6 — — — — +164 -98 -1 54.3% +0.39 5–4 (56%) 0–2 — -0.95 1973 1496 92.8 — — — — — -8 +52 40.9% -1.41 1–1 — — +1.13
19 1973 1852 140.9 — — — — -29 -44 -119 55.8% +0.08 11–8 (58%) 7–1 (88%) 106.5 -4.59 1974 1453 91.0 — — — — +95 -59 +77 34.0% -1.11 3–4 (43%) 1–3 (25%) 97.2 +1.33
20 1974 1813 140.5 — — — — -4 -63 -20 50.5% +0.13 4–5 (44%) 5–5 (50%) 99.4 -2.47 1975 1493 95.6 — — — — — -27 — 40.7% -1.33 2–1 (67%) 1–1 — +0.98
21 1975 1904 152.7 — — — — -63 +15 -117 57.6% +0.47 6–6 (50%) 6–1 (86%) 104.5 -5.60 1976 1530 116.3 — — — — — -82 +48 28.0% -1.64 2–1 (67%) — — -0.39
22 1976 1863 123.7 — — — — -83 +57 -40 51.8% -0.23 7–1 (88%) 3–1 (75%) 107.1 -1.77 1977 1567 121.7 — — — — — -112 +16 43.8% -0.69 3–5 (38%) 3–1 (75%) 101.1 +1.63
23 1977 1875 146.0 — — — — -74 +55 -101 52.8% +0.28 6–6 (50%) 2–5 (29%) 95.9 -3.22 1978 1595 111.7 — — — — — -138 +17 48.3% -0.17 1–2 (33%) 1–1 — +0.54
24 1978 1831 138.7 — — — — -69 +30 +11 50.7% +0.12 5–4 (56%) 0–4 (0%) 95.6 -2.30 1979 1594 114.4 — — — — — — +13 47.4% +0.05 2–2 (50%) 1–1 — +1.58
25 1979 1681 129.3 — — — — +2 +125 +112 39.1% -0.90 2–3 (40%) 4–4 (50%) 97.3 +0.41 1980 1593 108.7 — — — — — -117 -11 53.2% +0.30 2–3 (40%) 1–1 — +1.74
26 1980 1644 112.8 — — — — -10 — +207 60.0% +0.76 4–3 (57%) 1–1 — +2.97 1981 1531 97.3 — — — — -43 -32 — 23.5% -1.88 1–2 (33%) 1–1 — +0.51
27 — — — — — — — — — — — — — — — — 1982 1520 99.4 — — — — — — — 0.0% -2.00 — — — +0.01
28 — — — — — — — — — — — — — — — — 1983 1467 93.8 — — — — — — — 11.1% -1.89 0–1 — — +0.48
29 — — — — — — — — — — — — — — — — 1984 1459 102.4 — — — — — — — 0.0% -1.50 — 0–1 — -0.02
32 — — — — — — — — — — — — — — — — 1987 1451 91.3 — — — — — — — 0.0% -5.50 — — — -0.06
Career — 1922 142.9 — — — — +13 +8 -28 54.9% +0.32 62–49 (56%) 28–25 (53%) 101.7 -2.59 — 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.