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

Mariana Simionescu vs Roberta Stark H2H: 1-0

Mariana Simionescu holds a 1–0 lead over Roberta Stark 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 Winter Haven round of 32 6-2 6-0.

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Mariana Simionescu
ROU Age 69
H2H
1 – 0
1 main-draw meetings
Roberta Stark
USA Age 70

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mariana Simionescu 6-2 6-0 Roberta Stark Match data Feb 28, 1974* R32 Winter Haven 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
Mariana Simionescu — — — 1,743 68 72 48.6% 0 0 0 0 2 2
Roberta Stark — — — 1,500 13 34 27.7% 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 Mariana Simionescu Roberta Stark
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1973 5–8 38.5% — 1,515 0 0 1973 0–2 0.0% — 1,470 0 0
17 1974 13–12 52.0% — 1,591 0 0 1974 5–8 38.5% — 1,478 0 0
18 1975 10–14 41.7% — 1,614 0 0 1975 7–20 25.9% — 1,485 0 0
19 1976 15–13 53.6% — 1,691 0 1 1976 1–4 20.0% — 1,490 0 0
20 1977 7–8 46.7% — 1,703 0 1 — — — — — — —
21 1978 9–10 47.4% — 1,689 0 1 — — — — — — —
22 1979 0–3 0.0% — 1,632 0 1 — — — — — — —
23 1980 9–4 69.2% — 1,709 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 Mariana Simionescu Roberta Stark
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 1973 — — — — 1 3 4 25.0% 0 2 2 0.0% 4 3 7 57.1% 1973 — — — — 0 2 2 0.0% — — — — — — — —
17 1974 0 1 1 0.0% 11 6 17 64.7% 2 4 6 33.3% 0 1 1 0.0% 1974 — — — — 4 5 9 44.4% 0 1 1 0.0% — — — —
18 1975 0 1 1 0.0% 8 7 15 53.3% 0 1 1 0.0% 0 2 2 0.0% 1975 0 3 3 0.0% 2 5 7 28.6% 0 2 2 0.0% 0 2 2 0.0%
19 1976 1 1 2 50.0% 9 7 16 56.3% 4 1 5 80.0% 1 4 5 20.0% 1976 — — — — 1 3 4 25.0% — — — — 0 1 1 0.0%
20 1977 — — — — 1 3 4 25.0% 3 1 4 75.0% 3 3 6 50.0% — — — — — — — — — — — — — — — — —
21 1978 1 2 3 33.3% 4 3 7 57.1% 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
22 1979 0 1 1 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
23 1980 5 1 6 83.3% 4 3 7 57.1% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 7 7 14 50.0% 38 33 71 53.5% 9 11 20 45.0% 9 15 24 37.5% — 0 3 3 0.0% 7 15 22 31.8% 0 3 3 0.0% 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 Mariana Simionescu Roberta Stark
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 1973 1471 97.6 — — — — — — — 33.3% -1.67 0–2 — — +0.32
17 1974 1591 117.5 — — — — — +8 -55 49.1% -0.27 4–3 (57%) 1–1 — +1.23 1974 1478 111.7 — — — — — +22 — 40.0% -0.37 2–2 (50%) 0–1 — +0.52
18 1975 1614 121.8 — — — — -38 +35 — 43.6% -0.09 3–4 (43%) 1–5 (17%) 93.9 +0.75 1975 1486 116.8 — — — — +72 +10 — 31.7% -0.86 3–8 (27%) 1–2 (33%) 95.9 -0.67
19 1976 1691 133.9 — — — — -127 -3 -77 56.1% +0.48 3–7 (30%) 2–2 (50%) 95.9 +1.06 1976 1491 101.1 — — — — — +4 — 25.0% -2.13 — — — -0.22
20 1977 1703 124.7 — — — — -115 -9 -57 50.0% -0.03 1–1 — — +1.60 — — — — — — — — — — — — — — — —
21 1978 1689 124.2 — — — — -72 +21 — 44.2% -0.19 4–3 (57%) 0–3 (0%) 99.0 +0.10 — — — — — — — — — — — — — — — —
22 1979 1633 95.0 — — — — — — — 0.0% -3.17 — — — +0.57 — — — — — — — — — — — — — — — —
23 1980 1709 116.1 — — — — -66 +3 — 64.5% +0.64 3–2 (60%) 3–1 (75%) 103.9 +0.91 — — — — — — — — — — — — — — — —
Career — 1744 126.3 — — — — -58 +9 -63 48.9% -0.06 20–23 (47%) 8–13 (38%) 95.8 +5.56 — 1500 113.2 — — — — +72 +14 — 33.6% -0.86 5–12 (29%) 1–3 (25%) 93.6 -0.11

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.