H2H data updated: 2026-09-12 00:00 UTC

Nancy Ornstein vs Mariana Simionescu H2H: 0-1

Mariana Simionescu holds a 1–0 lead over Nancy Ornstein in their WTA head-to-head. Across 1 main-draw meeting, Mariana Simionescu leads 1–0 on clay. Most recently, Mariana Simionescu won the 1974 Italian Open round of 64 6-3 6-4.

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Nancy Ornstein
USA Age 74
H2H
0 – 1
1 main-draw meetings
Mariana Simionescu
ROU Age 69

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mariana Simionescu 6-3 6-4 Nancy Ornstein Match data May 27, 1974* R64 Italian Open 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
Nancy Ornstein — — — 1,567 41 81 33.6% 0 0 0 0 2 2
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 Nancy Ornstein Mariana Simionescu
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1968 3–2 60.0% — 1,522 0 0 1973 5–8 38.5% — 1,515 0 0
17 1969 0–3 0.0% — 1,506 0 0 1974 13–12 52.0% — 1,591 0 0
18 1970 4–3 57.1% — 1,529 0 1 1975 10–14 41.7% — 1,614 0 0
19 1971 2–7 22.2% — 1,505 0 1 1976 15–13 53.6% — 1,691 0 1
20 1972 4–14 22.2% — 1,488 0 1 1977 7–8 46.7% — 1,703 0 1
21 1973 0–6 0.0% — 1,459 0 1 1978 9–10 47.4% — 1,689 0 1
22 1974 5–9 35.7% — 1,454 0 1 1979 0–3 0.0% — 1,632 0 1
23 1975 5–11 31.2% — 1,449 0 1 1980 9–4 69.2% — 1,709 0 2
24 1976 1–5 16.7% — 1,425 0 1 — — — — — — —
25 1977 6–5 54.5% — 1,509 0 1 — — — — — — —
26 1978 1–3 25.0% — 1,504 0 1 — — — — — — —
27 1979 4–4 50.0% — 1,528 0 2 — — — — — — —
28 1980 5–6 45.5% — 1,534 0 2 — — — — — — —
29 1981 1–3 25.0% — 1,504 0 2 — — — — — — —

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 Nancy Ornstein Mariana Simionescu
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 %
16 1968 0 1 1 0.0% 3 1 4 75.0% — — — — — — — — 1973 — — — — 1 3 4 25.0% 0 2 2 0.0% 4 3 7 57.1%
17 1969 0 1 1 0.0% — — — — 0 2 2 0.0% — — — — 1974 0 1 1 0.0% 11 6 17 64.7% 2 4 6 33.3% 0 1 1 0.0%
18 1970 3 0 3 100.0% 0 2 2 0.0% 1 1 2 50.0% — — — — 1975 0 1 1 0.0% 8 7 15 53.3% 0 1 1 0.0% 0 2 2 0.0%
19 1971 0 2 2 0.0% 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 1972 0 1 1 0.0% 2 5 7 28.6% 2 4 6 33.3% 0 4 4 0.0% 1977 — — — — 1 3 4 25.0% 3 1 4 75.0% 3 3 6 50.0%
21 1973 0 1 1 0.0% 0 2 2 0.0% 0 2 2 0.0% 0 1 1 0.0% 1978 1 2 3 33.3% 4 3 7 57.1% 0 1 1 0.0% 1 2 3 33.3%
22 1974 2 1 3 66.7% 0 5 5 0.0% 0 1 1 0.0% — — — — 1979 0 1 1 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
23 1975 2 3 5 40.0% 1 2 3 33.3% 0 1 1 0.0% 1 2 3 33.3% 1980 5 1 6 83.3% 4 3 7 57.1% — — — — — — — —
24 1976 1 3 4 25.0% 0 1 1 0.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
25 1977 1 1 2 50.0% — — — — — — — — 2 2 4 50.0% — — — — — — — — — — — — — — — — —
26 1978 — — — — 0 2 2 0.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
27 1979 0 1 1 0.0% — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
28 1980 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 10 17 27 37.0% 8 24 32 25.0% 4 13 17 23.5% 3 11 14 21.4% — 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 Nancy Ornstein 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 1968 1523 108.0 — — — — — +35 — 60.0% +1.00 — — — +0.01 1973 1516 96.6 — — — — +72 -34 — 41.9% -0.71 2–3 (40%) 1–1 — +1.45
17 1969 1506 99.8 — — — — — — — 0.0% -3.33 — — — -0.56 1974 1591 117.5 — — — — — +8 -55 49.1% -0.27 4–3 (57%) 1–1 — +1.23
18 1970 1529 102.0 — — — — +65 — — 47.1% -0.53 3–0 (100%) 0–1 — +1.06 1975 1614 121.8 — — — — -38 +35 — 43.6% -0.09 3–4 (43%) 1–5 (17%) 93.9 +0.75
19 1971 1505 114.4 — — — — — +3 — 31.6% -1.10 1–2 (33%) 2–1 (67%) 99.5 +0.11 1976 1691 133.9 — — — — -127 -3 -77 56.1% +0.48 3–7 (30%) 2–2 (50%) 95.9 +1.06
20 1972 1489 109.0 — — — — +28 +20 -5 21.6% -1.86 1–0 — — -0.49 1977 1703 124.7 — — — — -115 -9 -57 50.0% -0.03 1–1 — — +1.60
21 1973 1460 89.7 — — — — — — — 0.0% -3.92 — — — -0.54 1978 1689 124.2 — — — — -72 +21 — 44.2% -0.19 4–3 (57%) 0–3 (0%) 99.0 +0.10
22 1974 1455 105.0 — — — — +67 -32 — 31.0% -1.52 2–1 (67%) 0–1 — -0.60 1979 1633 95.0 — — — — — — — 0.0% -3.17 — — — +0.57
23 1975 1449 101.6 — — — — +120 -15 — 28.1% -1.41 1–1 — — +1.12 1980 1709 116.1 — — — — -66 +3 — 64.5% +0.64 3–2 (60%) 3–1 (75%) 103.9 +0.91
24 1976 1426 94.0 — — — — +63 — — 33.3% -1.73 0–3 (0%) 1–1 — +0.60 — — — — — — — — — — — — — — — —
25 1977 1509 111.1 — — — — +17 — — 48.0% +0.08 3–0 (100%) — — +1.06 — — — — — — — — — — — — — — — —
26 1978 1504 96.3 — — — — — — — 25.0% -2.50 — — — -0.07 — — — — — — — — — — — — — — — —
27 1979 1528 107.1 — — — — — — — 52.9% 0.00 0–3 (0%) 2–1 (67%) — +0.70 — — — — — — — — — — — — — — — —
28 1980 1535 105.6 — — — — -64 — — 44.4% -0.78 — 1–0 — -0.40 — — — — — — — — — — — — — — — —
29 1981 1504 101.1 — — — — — — — 33.3% -0.67 0–1 0–1 — -0.05 — — — — — — — — — — — — — — — —
Career — 1567 107.2 — — — — +52 +4 -5 33.5% -1.22 11–11 (50%) 6–6 (50%) 103.5 +1.64 — 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.