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: 2026-09-13 00:00 UTC
Naoko Sato vs Mariana Simionescu H2H: 0-1
Mariana Simionescu holds a 1–0 lead over Naoko Sato in their WTA head-to-head. Across 1 main-draw meeting, Mariana Simionescu leads 1–0 on hard courts. Most recently, Mariana Simionescu won the 1980 Tokyo Japan Open round of 16 6-3 7-6.
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 |
|---|---|---|---|---|---|---|---|---|
| Mariana Simionescu | 6-3 7-6 | Naoko Sato | Match data | Oct 24, 1980* | R16 | Tokyo Japan Open | WTA 250 | Hard |
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 |
| Mariana Simionescu | — | — | — | 1,743 | 68 | 72 | 48.6% | 0 | 0 | 0 | 0 | 2 | 2 |
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 | Mariana Simionescu | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 1973 | 5–8 | 38.5% | — | 1,515 | 0 | 0 |
| 17 | 1972 | 2–3 | 40.0% | — | 1,504 | 0 | 0 | 1974 | 13–12 | 52.0% | — | 1,591 | 0 | 0 |
| 18 | 1973 | 4–6 | 40.0% | — | 1,495 | 0 | 0 | 1975 | 10–14 | 41.7% | — | 1,614 | 0 | 0 |
| 19 | 1974 | 7–16 | 30.4% | — | 1,452 | 0 | 0 | 1976 | 15–13 | 53.6% | — | 1,691 | 0 | 1 |
| 20 | 1975 | 5–7 | 41.7% | — | 1,492 | 0 | 0 | 1977 | 7–8 | 46.7% | — | 1,703 | 0 | 1 |
| 21 | 1976 | 4–8 | 33.3% | — | 1,530 | 0 | 0 | 1978 | 9–10 | 47.4% | — | 1,689 | 0 | 1 |
| 22 | 1977 | 8–12 | 40.0% | — | 1,566 | 0 | 0 | 1979 | 0–3 | 0.0% | — | 1,632 | 0 | 1 |
| 23 | 1978 | 6–7 | 46.2% | — | 1,594 | 0 | 0 | 1980 | 9–4 | 69.2% | — | 1,709 | 0 | 2 |
| 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 | Mariana Simionescu | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | — | — | — | — | 1 | 3 | 4 | 25.0% | 0 | 2 | 2 | 0.0% | 4 | 3 | 7 | 57.1% |
| 17 | 1972 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 2 | 1 | 3 | 66.7% | 1974 | 0 | 1 | 1 | 0.0% | 11 | 6 | 17 | 64.7% | 2 | 4 | 6 | 33.3% | 0 | 1 | 1 | 0.0% |
| 18 | 1973 | — | — | — | — | 2 | 4 | 6 | 33.3% | 2 | 2 | 4 | 50.0% | — | — | — | — | 1975 | 0 | 1 | 1 | 0.0% | 8 | 7 | 15 | 53.3% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% |
| 19 | 1974 | 2 | 2 | 4 | 50.0% | 1 | 6 | 7 | 14.3% | 2 | 4 | 6 | 33.3% | 0 | 1 | 1 | 0.0% | 1976 | 1 | 1 | 2 | 50.0% | 9 | 7 | 16 | 56.3% | 4 | 1 | 5 | 80.0% | 1 | 4 | 5 | 20.0% |
| 20 | 1975 | — | — | — | — | 3 | 2 | 5 | 60.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | 1977 | — | — | — | — | 1 | 3 | 4 | 25.0% | 3 | 1 | 4 | 75.0% | 3 | 3 | 6 | 50.0% |
| 21 | 1976 | — | — | — | — | 0 | 4 | 4 | 0.0% | 4 | 4 | 8 | 50.0% | — | — | — | — | 1978 | 1 | 2 | 3 | 33.3% | 4 | 3 | 7 | 57.1% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% |
| 22 | 1977 | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | 7 | 9 | 16 | 43.8% | — | — | — | — | 1979 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 23 | 1978 | — | — | — | — | 1 | 2 | 3 | 33.3% | 5 | 4 | 9 | 55.6% | 0 | 1 | 1 | 0.0% | 1980 | 5 | 1 | 6 | 83.3% | 4 | 3 | 7 | 57.1% | — | — | — | — | — | — | — | — |
| 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% | — | 7 | 7 | 14 | 50.0% | 38 | 33 | 71 | 53.5% | 9 | 11 | 20 | 45.0% | 9 | 15 | 24 | 37.5% |
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 | Mariana Simionescu | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 1516 | 96.6 | — | — | — | — | +72 | -34 | — | 41.9% | -0.71 | 2–3 (40%) | 1–1 | — | +1.45 |
| 17 | 1972 | 1505 | 88.1 | — | — | — | — | +47 | — | — | 36.4% | -2.00 | 1–0 | 1–0 | — | +0.31 | 1974 | 1591 | 117.5 | — | — | — | — | — | +8 | -55 | 49.1% | -0.27 | 4–3 (57%) | 1–1 | — | +1.23 |
| 18 | 1973 | 1496 | 92.8 | — | — | — | — | — | -8 | +52 | 40.9% | -1.41 | 1–1 | — | — | +1.13 | 1975 | 1614 | 121.8 | — | — | — | — | -38 | +35 | — | 43.6% | -0.09 | 3–4 (43%) | 1–5 (17%) | 93.9 | +0.75 |
| 19 | 1974 | 1453 | 91.0 | — | — | — | — | +95 | -59 | +77 | 34.0% | -1.11 | 3–4 (43%) | 1–3 (25%) | 97.2 | +1.33 | 1976 | 1691 | 133.9 | — | — | — | — | -127 | -3 | -77 | 56.1% | +0.48 | 3–7 (30%) | 2–2 (50%) | 95.9 | +1.06 |
| 20 | 1975 | 1493 | 95.6 | — | — | — | — | — | -27 | — | 40.7% | -1.33 | 2–1 (67%) | 1–1 | — | +0.98 | 1977 | 1703 | 124.7 | — | — | — | — | -115 | -9 | -57 | 50.0% | -0.03 | 1–1 | — | — | +1.60 |
| 21 | 1976 | 1530 | 116.3 | — | — | — | — | — | -82 | +48 | 28.0% | -1.64 | 2–1 (67%) | — | — | -0.39 | 1978 | 1689 | 124.2 | — | — | — | — | -72 | +21 | — | 44.2% | -0.19 | 4–3 (57%) | 0–3 (0%) | 99.0 | +0.10 |
| 22 | 1977 | 1567 | 121.7 | — | — | — | — | — | -112 | +16 | 43.8% | -0.69 | 3–5 (38%) | 3–1 (75%) | 101.1 | +1.63 | 1979 | 1633 | 95.0 | — | — | — | — | — | — | — | 0.0% | -3.17 | — | — | — | +0.57 |
| 23 | 1978 | 1595 | 111.7 | — | — | — | — | — | -138 | +17 | 48.3% | -0.17 | 1–2 (33%) | 1–1 | — | +0.54 | 1980 | 1709 | 116.1 | — | — | — | — | -66 | +3 | — | 64.5% | +0.64 | 3–2 (60%) | 3–1 (75%) | 103.9 | +0.91 |
| 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 | — | 1744 | 126.3 | — | — | — | — | -58 | +9 | -63 | 48.9% | -0.06 | 20–23 (47%) | 8–13 (38%) | 95.8 | +5.56 |
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.
Mariana Simionescu
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Regina Marsikova | 0 | 4 | 4 | Jun 6, 1978 | H2H |
| Virginia Ruzici | 0 | 4 | 4 | May 26, 1978 | H2H |
| Donna Ganz | 2 | 2 | 4 | Jun 7, 1975 | H2H |
| Sue Barker | 1 | 2 | 3 | Oct 19, 1978 | H2H |
| Laura Dupont | 2 | 1 | 3 | May 26, 1976 | H2H |