H2H data updated: 2026-09-07 00:00 UTC

Barbara Hallquist vs Kathy Obrien H2H: 1-0

Barbara Hallquist holds a 1–0 lead over Kathy Obrien in their WTA head-to-head. They have met 1 times in main draws. Most recently, Barbara Hallquist won the 1978 Los Angeles Sectionals round of 16 6-2 6-3.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Barbara Hallquist
USA Age 69
H2H
1 – 0
1 main-draw meetings
Kathy Obrien
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Barbara Hallquist 6-2 6-3 Kathy Obrien Match data May 18, 1978* R16 Los Angeles Sectionals 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
Barbara Hallquist — — — 1,777 67 90 42.7% 0 0 0 0 0 0
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.

Barbara Hallquist Kathy Obrien
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1973 2–1 66.7% — 1,516 0 0 1978 1–1 50.0% — 1,503 0 0
1974 2–3 40.0% — 1,500 0 0 1979 2–1 66.7% — 1,520 0 1
1975 3–1 75.0% — 1,541 0 0 1980 3–4 42.9% — 1,519 0 1
1976 0–1 0.0% — 1,530 0 0 1981 1–1 50.0% — 1,531 0 1
1977 4–2 66.7% — 1,577 0 0 1982 1–1 50.0% — 1,527 0 1
1978 8–9 47.1% — 1,615 0 0 1983 2–4 33.3% — 1,514 0 1
1979 3–13 18.8% — 1,564 0 0 — — — — — — —
1980 14–13 51.9% — 1,702 0 0 — — — — — — —
1981 14–17 45.2% — 1,736 0 0 — — — — — — —
1982 12–14 46.2% — 1,706 0 0 — — — — — — —
1983 5–16 23.8% — 1,567 0 0 — — — — — — —

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.

Barbara Hallquist 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 %
1973 2 1 3 66.7% — — — — — — — — — — — — 1979 0 1 1 0.0% — — — — — — — — — — — —
1974 2 2 4 50.0% — — — — 0 1 1 0.0% — — — — 1980 3 4 7 42.9% — — — — — — — — — — — —
1975 — — — — — — — — 3 1 4 75.0% — — — — 1983 0 3 3 0.0% — — — — — — — — — — — —
1976 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1977 — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1978 3 4 7 42.9% 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
1979 3 4 7 42.9% 0 1 1 0.0% 0 6 6 0.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
1980 7 8 15 46.7% 2 2 4 50.0% 5 3 8 62.5% — — — — — — — — — — — — — — — — — — — — —
1981 7 6 13 53.8% — — — — 7 6 13 53.8% 0 5 5 0.0% — — — — — — — — — — — — — — — — —
1982 7 5 12 58.3% 0 3 3 0.0% 5 6 11 45.5% — — — — — — — — — — — — — — — — — — — — —
1983 3 8 11 27.3% 0 3 3 0.0% 1 3 4 25.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
Career 34 38 72 47.2% 3 12 15 20.0% 22 28 50 44.0% 1 9 10 10.0% 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.

Barbara Hallquist 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
1973 1516 110.1 — — — — +80 — — 66.7% +2.33 — — — +0.83 1978 1503 99.3 — — — — — — — 40.0% -1.00 1–0 — — +0.02
1974 1500 97.3 — — — — +94 — — 38.5% -0.85 2–1 (67%) 0–1 — +1.26 1979 1521 101.2 — — — — — — — 50.0% +0.50 2–0 0–1 — +0.58
1975 1541 102.9 — — — — — — +36 60.0% +0.60 2–0 1–1 — +0.62 1980 1520 99.2 — — — — +20 — — 38.9% -0.67 3–1 (75%) 2–0 — +0.83
1976 1530 102.4 — — — — — — — 33.3% -1.00 0–1 — — +0.08 1981 1531 107.3 — — — — — — — 50.0% 0.00 — — — -0.35
1977 1578 113.0 — — — — — — — 57.1% +0.21 2–0 1–0 — +0.31 1982 1527 103.6 — — — — — — — 50.0% +1.00 — — — +0.08
1978 1615 117.4 — — — — +32 — -43 48.6% -0.16 3–2 (60%) 2–1 (67%) — +0.27 1983 1515 102.3 — — — — +3 — — 41.2% -0.18 2–3 (40%) 0–1 — +0.39
1979 1564 114.4 — — — — +88 — -66 27.0% -1.76 3–4 (43%) 0–1 — -0.88 — — — — — — — — — — — — — — — —
1980 1702 131.2 — — — — -29 -211 -89 52.4% -0.19 4–5 (44%) 6–1 (86%) 104.8 -1.74 — — — — — — — — — — — — — — — —
1981 1736 128.2 — — — — -10 — -69 43.2% -0.74 8–4 (67%) 2–0 — -2.03 — — — — — — — — — — — — — — — —
1982 1707 102.0 — — — — -3 -250 -62 44.1% -0.80 5–2 (71%) 4–4 (50%) 102.8 -0.61 — — — — — — — — — — — — — — — —
1983 1567 105.0 — — — — +48 -95 +32 28.3% -1.37 1–3 (25%) 0–3 (0%) 93.9 +0.68 — — — — — — — — — — — — — — — —
Career 1777 121.4 — — — — +20 -188 -52 43.1% -0.66 30–22 (58%) 16–12 (57%) 106.6 -0.77 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.