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

Helen Gourlay vs Naoko Sato H2H: 1-0

Helen Gourlay holds a 1–0 lead over Naoko Sato in their WTA head-to-head. Across 1 main-draw meeting, Helen Gourlay leads 1–0 on clay. Most recently, Helen Gourlay won the 1973 Columbus round of 32 6-3 6-1.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Helen Gourlay
AUS Age 79
H2H
1 – 0
1 main-draw meetings
Naoko Sato
JPN Age 71

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Helen Gourlay 6-3 6-1 Naoko Sato Match data Sep 27, 1973* R32 Columbus 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
Helen Gourlay — — — 1,962 295 201 59.5% 0 0 0 0 7 7
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 Helen Gourlay 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 1968 48–21 69.6% — 1,678 0 3 1976 4–8 33.3% — 1,530 0 0
22 1969 41–29 58.6% — 1,730 0 5 1977 8–12 40.0% — 1,566 0 0
23 1970 42–22 65.6% — 1,845 0 7 1978 6–7 46.2% — 1,594 0 0
24 1971 46–25 64.8% — 1,907 0 7 1979 8–9 47.1% — 1,594 0 0
25 1972 34–25 57.6% — 1,799 0 7 1980 11–10 52.4% — 1,592 0 0
26 1973 7–13 35.0% — 1,745 0 7 1981 1–6 14.3% — 1,531 0 0
27 1974 30–19 61.2% — 1,942 0 7 1982 0–1 0.0% — 1,520 0 0
28 1975 8–14 36.4% — 1,841 0 7 1983 0–4 0.0% — 1,467 0 0
29 1976 7–7 50.0% — 1,815 0 7 1984 0–1 0.0% — 1,458 0 0
30 1977 24–19 55.8% — 1,897 0 7 — — — — — — —
31 1978 4–3 57.1% — 1,882 0 7 — — — — — — —
32 — — — — — — — 1987 0–1 0.0% — 1,451 0 0
33 1980 4–4 50.0% — 1,796 0 7 — — — — — — —

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 Helen Gourlay 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 1968 — — — — 34 10 44 77.3% 13 10 23 56.5% — — — — 1976 — — — — 0 4 4 0.0% 4 4 8 50.0% — — — —
22 1969 4 3 7 57.1% 21 11 32 65.6% 13 10 23 56.5% 3 5 8 37.5% 1977 0 1 1 0.0% 1 2 3 33.3% 7 9 16 43.8% — — — —
23 1970 14 7 21 66.7% 14 9 23 60.9% 14 6 20 70.0% — — — — 1978 — — — — 1 2 3 33.3% 5 4 9 55.6% 0 1 1 0.0%
24 1971 8 4 12 66.7% 14 7 21 66.7% 24 14 38 63.2% — — — — 1979 0 2 2 0.0% — — — — 4 5 9 44.4% — — — —
25 1972 4 2 6 66.7% 10 5 15 66.7% 14 10 24 58.3% 6 8 14 42.9% 1980 1 1 2 50.0% 4 4 8 50.0% 3 4 7 42.9% — — — —
26 1973 3 3 6 50.0% 2 4 6 33.3% 2 5 7 28.6% 0 1 1 0.0% 1981 0 3 3 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — —
27 1974 8 4 12 66.7% 5 4 9 55.6% 10 6 16 62.5% 7 5 12 58.3% 1982 — — — — — — — — 0 1 1 0.0% — — — —
28 1975 0 3 3 0.0% 3 2 5 60.0% 2 4 6 33.3% 3 5 8 37.5% 1983 0 1 1 0.0% — — — — 0 2 2 0.0% — — — —
29 1976 — — — — 2 2 4 50.0% 5 3 8 62.5% 0 2 2 0.0% 1984 — — — — — — — — 0 1 1 0.0% — — — —
30 1977 2 3 5 40.0% 4 8 12 33.3% 16 6 22 72.7% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
31 1978 — — — — 3 1 4 75.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — — 1987 — — — — — — — — 0 1 1 0.0% — — — —
33 1980 — — — — — — — — 4 4 8 50.0% — — — — — — — — — — — — — — — — — — — — —
Career — 43 29 72 59.7% 112 63 175 64.0% 118 80 198 59.6% 19 27 46 41.3% — 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 Helen Gourlay 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 1968 1678 124.8 — — — — — +138 -25 66.7% +1.23 12–8 (60%) — — +0.47 1976 1530 116.3 — — — — — -82 +48 28.0% -1.64 2–1 (67%) — — -0.39
22 1969 1730 129.9 — — — — -101 +74 0 57.0% +0.54 10–10 (50%) — — -2.37 1977 1567 121.7 — — — — — -112 +16 43.8% -0.69 3–5 (38%) 3–1 (75%) 101.1 +1.63
23 1970 1845 137.5 — — — — -65 -20 +20 61.9% +0.90 12–7 (63%) 2–1 (67%) 105.2 -3.63 1978 1595 111.7 — — — — — -138 +17 48.3% -0.17 1–2 (33%) 1–1 — +0.54
24 1971 1908 139.3 — — — — -97 +13 +18 59.3% +0.48 16–4 (80%) 6–4 (60%) 110.6 -3.93 1979 1594 114.4 — — — — — — +13 47.4% +0.05 2–2 (50%) 1–1 — +1.58
25 1972 1799 145.3 — — — — -6 +158 +32 57.0% +0.73 7–5 (58%) 1–5 (17%) 97.7 -4.23 1980 1593 108.7 — — — — — -117 -11 53.2% +0.30 2–3 (40%) 1–1 — +1.74
26 1973 1745 133.2 — — — — +25 +125 +41 34.9% -1.00 2–3 (40%) 0–2 — -2.97 1981 1531 97.3 — — — — -43 -32 — 23.5% -1.88 1–2 (33%) 1–1 — +0.51
27 1974 1943 155.6 — — — — +1 -37 -73 58.2% +0.69 10–6 (63%) 2–2 (50%) 103.5 -7.00 1982 1520 99.4 — — — — — — — 0.0% -2.00 — — — +0.01
28 1975 1841 138.9 — — — — +23 +75 -47 42.3% -0.52 2–6 (25%) 0–3 (0%) — -2.67 1983 1467 93.8 — — — — — — — 11.1% -1.89 0–1 — — +0.48
29 1976 1815 132.4 — — — — — +77 +28 50.0% +0.16 2–2 (50%) 1–1 — -0.42 1984 1459 102.4 — — — — — — — 0.0% -1.50 — 0–1 — -0.02
30 1977 1898 153.8 — — — — -104 -101 +103 57.3% +0.74 3–7 (30%) 0–2 — -2.97 — — — — — — — — — — — — — — — —
31 1978 1883 117.6 — — — — — -72 +76 50.0% -0.37 2–0 1–0 — -0.80 — — — — — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — 1987 1451 91.3 — — — — — — — 0.0% -5.50 — — — -0.06
33 1980 1797 99.2 — — — — — — +40 42.1% +0.47 3–2 (60%) 0–5 (0%) 94.9 +0.81 — — — — — — — — — — — — — — — —
Career — 1962 144.2 — — — — -37 +58 +16 57.4% +0.59 81–60 (57%) 13–25 (34%) 97.0 -6.03 — 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.