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

Nancy Ornstein vs Kathy Obrien H2H: 0-1

Kathy Obrien holds a 1–0 lead over Nancy Ornstein in their WTA head-to-head. They have met 1 times in main draws. Most recently, Kathy Obrien won the 1979 Dallas Open semifinal 2-6 6-3 6-1.

H2H
0 1
1 main-draw meetings

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kathy Obrien 2-6 6-3 6-1 Nancy Ornstein Match data Jun 23, 1979* SF Dallas Open WTA 250

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
Kathy Obrien 1,536 10 12 45.5% 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.

Nancy Ornstein Kathy Obrien
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 3–2 60.0% 1,522 0 0 1978 1–1 50.0% 1,503 0 0
1969 0–3 0.0% 1,506 0 0 1979 2–1 66.7% 1,520 0 1
1970 4–3 57.1% 1,529 0 1 1980 3–4 42.9% 1,519 0 1
1971 2–7 22.2% 1,505 0 1 1981 1–1 50.0% 1,531 0 1
1972 4–14 22.2% 1,488 0 1 1982 1–1 50.0% 1,527 0 1
1973 0–6 0.0% 1,459 0 1 1983 2–4 33.3% 1,514 0 1
1974 5–9 35.7% 1,454 0 1
1975 5–11 31.2% 1,449 0 1
1976 1–5 16.7% 1,425 0 1
1977 6–5 54.5% 1,509 0 1
1978 1–3 25.0% 1,504 0 1
1979 4–4 50.0% 1,528 0 2
1980 5–6 45.5% 1,534 0 2
1981 1–3 25.0% 1,504 0 2

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Nancy Ornstein Kathy Obrien
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 %
1968 0 1 1 0.0% 3 1 4 75.0% 1979 0 1 1 0.0%
1969 0 1 1 0.0% 0 2 2 0.0% 1980 3 4 7 42.9%
1970 3 0 3 100.0% 0 2 2 0.0% 1 1 2 50.0% 1983 0 3 3 0.0%
1971 0 2 2 0.0% 2 4 6 33.3% 0 1 1 0.0%
1972 0 1 1 0.0% 2 5 7 28.6% 2 4 6 33.3% 0 4 4 0.0%
1973 0 1 1 0.0% 0 2 2 0.0% 0 2 2 0.0% 0 1 1 0.0%
1974 2 1 3 66.7% 0 5 5 0.0% 0 1 1 0.0%
1975 2 3 5 40.0% 1 2 3 33.3% 0 1 1 0.0% 1 2 3 33.3%
1976 1 3 4 25.0% 0 1 1 0.0% 0 1 1 0.0%
1977 1 1 2 50.0% 2 2 4 50.0%
1978 0 2 2 0.0% 1 1 2 50.0%
1979 0 1 1 0.0% 0 1 1 0.0%
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% Career 3 8 11 27.3%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Nancy Ornstein Kathy Obrien
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
1968 1523 108.0 +35 60.0% +1.00 +0.01 1978 1503 99.3 40.0% -1.00 1–0 +0.02
1969 1506 99.8 0.0% -3.33 -0.56 1979 1521 101.2 50.0% +0.50 2–0 0–1 +0.58
1970 1529 102.0 +65 47.1% -0.53 3–0 (100%) 0–1 +1.06 1980 1520 99.2 +20 38.9% -0.67 3–1 (75%) 2–0 +0.83
1971 1505 114.4 +3 31.6% -1.10 1–2 (33%) 2–1 (67%) 99.5 +0.11 1981 1531 107.3 50.0% 0.00 -0.35
1972 1489 109.0 +28 +20 -5 21.6% -1.86 1–0 -0.49 1982 1527 103.6 50.0% +1.00 +0.08
1973 1460 89.7 0.0% -3.92 -0.54 1983 1515 102.3 +3 41.2% -0.18 2–3 (40%) 0–1 +0.39
1974 1455 105.0 +67 -32 31.0% -1.52 2–1 (67%) 0–1 -0.60
1975 1449 101.6 +120 -15 28.1% -1.41 1–1 +1.12
1976 1426 94.0 +63 33.3% -1.73 0–3 (0%) 1–1 +0.60
1977 1509 111.1 +17 48.0% +0.08 3–0 (100%) +1.06
1978 1504 96.3 25.0% -2.50 -0.07
1979 1528 107.1 52.9% 0.00 0–3 (0%) 2–1 (67%) +0.70
1980 1535 105.6 -64 44.4% -0.78 1–0 -0.40
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 Career 1536 103.8 +15 42.9% -0.22 8–4 (67%) 2–2 (50%) 104.3 +7.05

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.