Naoko Sato
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Betsy Nagelsen | 0 | 4 | 4 | Nov 14, 1984 | H2H |
| Pam Whytcross | 1 | 2 | 3 | Jul 12, 1980 | H2H |
| Belinda Thompson | 3 | 0 | 3 | Jun 7, 1978 | H2H |
| Julie Anthony | 0 | 3 | 3 | Jun 22, 1977 | H2H |
| Linky Boshoff | 0 | 3 | 3 | Aug 11, 1976 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Naoko Sato vs Sandy Stap H2H: 0-1
Sandy Stap holds a 1–0 lead over Naoko Sato in their WTA head-to-head. Across 1 main-draw meeting, Sandy Stap leads 1–0 on grass. Most recently, Sandy Stap won the 1975 Haverford round of 32 6-0 1-6 6-0.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Sandy Stap | 6-0 1-6 6-0 | Naoko Sato | Match data | Aug 21, 1975* | R32 | Haverford | 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 |
| Sandy Stap | — | — | — | 1,635 | 25 | 33 | 43.1% | 0 | 0 | 0 | 0 | 1 | 1 |
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 | Naoko Sato | Sandy Stap | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 15 | — | — | — | — | — | — | — | 1971 | 0–2 | 0.0% | — | 1,482 | 0 | 0 |
| 16 | — | — | — | — | — | — | — | 1972 | 2–4 | 33.3% | — | 1,493 | 0 | 0 |
| 17 | 1972 | 2–3 | 40.0% | — | 1,504 | 0 | 0 | 1973 | 2–6 | 25.0% | — | 1,446 | 0 | 0 |
| 18 | 1973 | 4–6 | 40.0% | — | 1,495 | 0 | 0 | 1974 | 7–7 | 50.0% | — | 1,508 | 0 | 0 |
| 19 | 1974 | 7–16 | 30.4% | — | 1,452 | 0 | 0 | 1975 | 10–7 | 58.8% | — | 1,615 | 0 | 1 |
| 20 | 1975 | 5–7 | 41.7% | — | 1,492 | 0 | 0 | 1976 | 0–1 | 0.0% | — | 1,594 | 0 | 1 |
| 21 | 1976 | 4–8 | 33.3% | — | 1,530 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1977 | 8–12 | 40.0% | — | 1,566 | 0 | 0 | 1978 | 3–3 | 50.0% | — | 1,579 | 0 | 1 |
| 23 | 1978 | 6–7 | 46.2% | — | 1,594 | 0 | 0 | 1979 | 1–3 | 25.0% | — | 1,541 | 0 | 1 |
| 24 | 1979 | 8–9 | 47.1% | — | 1,594 | 0 | 0 | — | — | — | — | — | — | — |
| 25 | 1980 | 11–10 | 52.4% | — | 1,592 | 0 | 0 | — | — | — | — | — | — | — |
| 26 | 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 | Naoko Sato | Sandy Stap | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | |||||||||||||||||||||||||
| 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 % | |||
| 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | — | — | — | — | 1 | 1 | 2 | 50.0% | 1 | 3 | 4 | 25.0% | — | — | — | — |
| 17 | 1972 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2 | 1 | 3 | 66.7% | 1973 | 1 | 2 | 3 | 33.3% | 1 | 3 | 4 | 25.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 18 | 1973 | — | — | — | — | 2 | 4 | 6 | 33.3% | 2 | 2 | 4 | 50.0% | — | — | — | — | 1974 | — | — | — | — | 4 | 4 | 8 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 19 | 1974 | 2 | 2 | 4 | 50.0% | 1 | 6 | 7 | 14.3% | 2 | 4 | 6 | 33.3% | 0 | 1 | 1 | 0.0% | 1975 | — | — | — | — | 1 | 3 | 4 | 25.0% | 5 | 0 | 5 | 100.0% | — | — | — | — |
| 20 | 1975 | — | — | — | — | 3 | 2 | 5 | 60.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | 1976 | — | — | — | — | 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% | — | — | — | — | 1978 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 23 | 1978 | — | — | — | — | 1 | 2 | 3 | 33.3% | 5 | 4 | 9 | 55.6% | 0 | 1 | 1 | 0.0% | 1979 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 0 | 2 | 2 | 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 | 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 | — | 3 | 11 | 14 | 21.4% | 13 | 27 | 40 | 32.5% | 27 | 40 | 67 | 40.3% | 2 | 4 | 6 | 33.3% | — | 2 | 3 | 5 | 40.0% | 7 | 14 | 21 | 33.3% | 6 | 6 | 12 | 50.0% | 0 | 3 | 3 | 0.0% |
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 | Naoko Sato | Sandy Stap | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | 1482 | 103.5 | — | — | — | — | — | — | — | 20.0% | -0.80 | 0–1 | — | — | +0.01 |
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | 1493 | 112.1 | — | — | — | — | — | — | +17 | 35.7% | -0.86 | 1–1 | — | — | +0.03 |
| 17 | 1972 | 1505 | 88.1 | — | — | — | — | +47 | — | — | 36.4% | -2.00 | 1–0 | 1–0 | — | +0.31 | 1973 | 1446 | 101.0 | — | — | — | — | +92 | +47 | — | 27.8% | -0.89 | 1–1 | 0–1 | — | +1.70 |
| 18 | 1973 | 1496 | 92.8 | — | — | — | — | — | -8 | +52 | 40.9% | -1.41 | 1–1 | — | — | +1.13 | 1974 | 1509 | 118.2 | — | — | — | — | — | +31 | — | 53.1% | +0.56 | 1–3 (25%) | 0–1 | — | +0.89 |
| 19 | 1974 | 1453 | 91.0 | — | — | — | — | +95 | -59 | +77 | 34.0% | -1.11 | 3–4 (43%) | 1–3 (25%) | 97.2 | +1.33 | 1975 | 1615 | 126.2 | — | — | — | — | — | -83 | -11 | 59.0% | +0.36 | 2–3 (40%) | 2–1 (67%) | 101.9 | +0.52 |
| 20 | 1975 | 1493 | 95.6 | — | — | — | — | — | -27 | — | 40.7% | -1.33 | 2–1 (67%) | 1–1 | — | +0.98 | 1976 | 1595 | 99.7 | — | — | — | — | — | — | — | 33.3% | -0.33 | 0–1 | — | — | +0.15 |
| 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 | 1978 | 1580 | 104.8 | — | — | — | — | — | — | — | 46.7% | +0.20 | 2–1 (67%) | 1–1 | — | +0.18 |
| 23 | 1978 | 1595 | 111.7 | — | — | — | — | — | -138 | +17 | 48.3% | -0.17 | 1–2 (33%) | 1–1 | — | +0.54 | 1979 | 1541 | 95.0 | — | — | — | — | -5 | — | — | 33.3% | -0.89 | 0–1 | — | — | +1.26 |
| 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 | 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 | — | 1629 | 106.1 | — | — | — | — | +45 | -69 | +25 | 39.8% | -0.84 | 18–22 (45%) | 10–10 (50%) | 101.4 | +6.65 | — | 1636 | 118.0 | — | — | — | — | +37 | +7 | +1 | 45.9% | -0.05 | 7–12 (37%) | 3–4 (43%) | 96.0 | +8.17 |
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.
Sandy Stap
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Betsy Nagelsen | 1 | 1 | 2 | Apr 1, 1979 | H2H |
| Susan Hagey | 2 | 0 | 2 | Feb 17, 1978 | H2H |
| Barbara Downs | 1 | 1 | 2 | Jul 25, 1975 | H2H |
| Cecilia Martinez | 0 | 2 | 2 | Jul 4, 1975 | H2H |
| Joanne Russell | 0 | 2 | 2 | Jul 12, 1974 | H2H |