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

Patricia Bostrom vs Tam Oshaughnessy H2H: 1-0

Patricia Bostrom holds a 1–0 lead over Tam Oshaughnessy in their WTA head-to-head. Across 1 main-draw meeting, Patricia Bostrom leads 1–0 on hard courts. Most recently, Patricia Bostrom won the 1974 Phoenix Aztec round of 32 6-3 6-0.

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

Patricia Bostrom
USA Age 74
H2H
1 – 0
1 main-draw meetings
Tam Oshaughnessy
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Patricia Bostrom 6-3 6-0 Tam Oshaughnessy Match data Apr 11, 1974* R32 Phoenix Aztec 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
Patricia Bostrom — — — 1,674 57 88 39.3% 0 0 0 0 1 1
Tam Oshaughnessy — — — 1,500 16 51 23.9% 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.

Patricia Bostrom Tam Oshaughnessy
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1969 1–1 50.0% — 1,502 0 0 1968 1–8 11.1% — 1,436 0 0
1970 1–4 20.0% — 1,483 0 0 1969 1–6 14.3% — 1,416 0 0
1971 0–4 0.0% — 1,451 0 0 1970 1–5 16.7% — 1,402 0 0
1972 7–7 50.0% — 1,499 0 1 1971 2–7 22.2% — 1,387 0 0
1973 16–23 41.0% — 1,587 0 1 1972 5–14 26.3% — 1,438 0 0
1974 12–10 54.5% — 1,654 0 1 1973 0–3 0.0% — 1,421 0 0
1975 5–6 45.5% — 1,625 0 1 1974 6–8 42.9% — 1,401 0 0
1976 4–7 36.4% — 1,624 0 1 — — — — — — —
1977 8–9 47.1% — 1,618 0 1 — — — — — — —
1978 3–16 15.8% — 1,516 0 1 — — — — — — —
1979 0–1 0.0% — 1,504 0 1 — — — — — — —

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.

Patricia Bostrom Tam Oshaughnessy
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 %
1970 — — — — 1 2 3 33.3% 0 2 2 0.0% — — — — 1968 0 5 5 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — —
1971 0 1 1 0.0% 0 2 2 0.0% 0 1 1 0.0% — — — — 1969 1 4 5 20.0% — — — — 0 2 2 0.0% — — — —
1972 5 2 7 71.4% 0 3 3 0.0% 1 2 3 33.3% — — — — 1970 0 3 3 0.0% — — — — 1 2 3 33.3% — — — —
1973 4 6 10 40.0% 5 10 15 33.3% 7 7 14 50.0% — — — — 1971 0 1 1 0.0% 0 2 2 0.0% 2 4 6 33.3% — — — —
1974 8 4 12 66.7% 0 1 1 0.0% 1 2 3 33.3% 3 3 6 50.0% 1972 0 1 1 0.0% 2 5 7 28.6% 3 7 10 30.0% 0 1 1 0.0%
1975 1 1 2 50.0% 0 1 1 0.0% — — — — 2 1 3 66.7% 1973 0 1 1 0.0% 0 2 2 0.0% — — — — — — — —
1976 2 1 3 66.7% 0 2 2 0.0% 1 3 4 25.0% 1 1 2 50.0% 1974 1 2 3 33.3% 1 2 3 33.3% 0 1 1 0.0% 3 1 4 75.0%
1977 2 1 3 66.7% 1 1 2 50.0% 2 5 7 28.6% 3 2 5 60.0% — — — — — — — — — — — — — — — — —
1978 0 4 4 0.0% 1 4 5 20.0% 2 5 7 28.6% 0 3 3 0.0% — — — — — — — — — — — — — — — — —
1979 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
Career 22 20 42 52.4% 8 26 34 23.5% 14 28 42 33.3% 9 10 19 47.4% Career 2 17 19 10.5% 4 13 17 23.5% 6 17 23 26.1% 3 2 5 60.0%

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.

Patricia Bostrom Tam Oshaughnessy
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
1969 1503 100.5 — — — — — — — 40.0% -0.60 1–0 — — +0.10 1968 1437 92.0 — — — — -49 +76 — 11.1% -3.22 — — — -0.48
1970 1484 99.6 — — — — — +32 — 20.0% -2.60 — — — -0.16 1969 1416 93.3 — — — — -59 — — 14.3% -2.86 — — — -0.18
1971 1452 99.7 — — — — — — — 11.1% -3.00 0–1 — — -0.15 1970 1402 93.5 — — — — -77 — +90 16.7% -3.00 — — — +0.30
1972 1500 99.4 — — — — +123 -57 -9 46.9% -0.56 3–1 (75%) 2–1 (67%) — +2.43 1971 1388 99.0 — — — — — — +98 26.3% -1.95 0–1 — — +0.83
1973 1588 114.9 — — — — +7 -115 -22 39.3% -0.73 5–3 (63%) 0–3 (0%) 101.2 +0.87 1972 1438 108.2 — — — — — +35 +51 30.0% -1.70 2–2 (50%) 1–0 — -0.25
1974 1655 122.8 — — — — +30 — -96 51.1% +0.15 3–0 (100%) — — +1.81 1973 1421 109.9 — — — — — — — 14.3% -2.71 0–1 — — -0.12
1975 1626 110.1 — — — — +103 — — 42.3% -0.15 3–1 (75%) 1–2 (33%) 101.9 +1.58 1974 1401 97.2 — — — — 0 +24 — 34.6% -1.04 1–1 1–0 — +1.51
1976 1624 114.2 — — — — +86 — -46 28.6% -1.43 1–0 0–1 — -0.62 — — — — — — — — — — — — — — — —
1977 1619 116.5 — — — — +106 — -82 51.4% +0.20 1–2 (33%) 2–3 (40%) 98.5 +2.87 — — — — — — — — — — — — — — — —
1978 1517 103.1 — — — — +118 -78 -14 17.9% -2.54 0–1 — — +0.45 — — — — — — — — — — — — — — — —
1979 1504 95.7 — — — — — — — 0.0% -4.50 — — — +0.08 — — — — — — — — — — — — — — — —
Career 1675 114.8 — — — — +68 -84 -39 38.4% -0.85 17–9 (65%) 5–10 (33%) 103.0 +6.48 Career 1500 98.9 — — — — -39 +42 +72 24.3% -2.10 3–5 (38%) 2–0 — +2.52

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.