H2H data updated: 2026-09-13 00:00 UTC

Patricia Bostrom vs Sonoe Yonezawa H2H: 1-0

Patricia Bostrom holds a 1–0 lead over Sonoe Yonezawa in their WTA head-to-head. Across 1 main-draw meeting, Patricia Bostrom leads 1–0 on grass. Most recently, Patricia Bostrom won the 1978 Christchurch round of 64 6-2 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
Sonoe Yonezawa
JPN Age 77

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Patricia Bostrom 6-2 6-0 Sonoe Yonezawa Match data Nov 22, 1978* R64 Christchurch WTA 250 Grass

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
Sonoe Yonezawa — — — 1,555 14 23 37.8% 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 Patricia Bostrom Sonoe Yonezawa
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1969 1–1 50.0% — 1,502 0 0 — — — — — — —
18 1970 1–4 20.0% — 1,483 0 0 — — — — — — —
19 1971 0–4 0.0% — 1,451 0 0 — — — — — — —
20 1972 7–7 50.0% — 1,499 0 1 — — — — — — —
21 1973 16–23 41.0% — 1,587 0 1 — — — — — — —
22 1974 12–10 54.5% — 1,654 0 1 — — — — — — —
23 1975 5–6 45.5% — 1,625 0 1 — — — — — — —
24 1976 4–7 36.4% — 1,624 0 1 — — — — — — —
25 1977 8–9 47.1% — 1,618 0 1 — — — — — — —
26 1978 3–16 15.8% — 1,516 0 1 — — — — — — —
27 1979 0–1 0.0% — 1,504 0 1 — — — — — — —
29 — — — — — — — 1978 5–8 38.5% — 1,519 0 0
30 — — — — — — — 1979 1–2 33.3% — 1,513 0 0
31 — — — — — — — 1980 8–9 47.1% — 1,544 0 0
32 — — — — — — — 1981 0–2 0.0% — 1,515 0 0
34 — — — — — — — 1983 0–2 0.0% — 1,487 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 Patricia Bostrom Sonoe Yonezawa
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
17 1969 1503 100.5 — — — — — — — 40.0% -0.60 1–0 — — +0.10 — — — — — — — — — — — — — — — —
18 1970 1484 99.6 — — — — — +32 — 20.0% -2.60 — — — -0.16 — — — — — — — — — — — — — — — —
19 1971 1452 99.7 — — — — — — — 11.1% -3.00 0–1 — — -0.15 — — — — — — — — — — — — — — — —
20 1972 1500 99.4 — — — — +123 -57 -9 46.9% -0.56 3–1 (75%) 2–1 (67%) — +2.43 — — — — — — — — — — — — — — — —
21 1973 1588 114.9 — — — — +7 -115 -22 39.3% -0.73 5–3 (63%) 0–3 (0%) 101.2 +0.87 — — — — — — — — — — — — — — — —
22 1974 1655 122.8 — — — — +30 — -96 51.1% +0.15 3–0 (100%) — — +1.81 — — — — — — — — — — — — — — — —
23 1975 1626 110.1 — — — — +103 — — 42.3% -0.15 3–1 (75%) 1–2 (33%) 101.9 +1.58 — — — — — — — — — — — — — — — —
24 1976 1624 114.2 — — — — +86 — -46 28.6% -1.43 1–0 0–1 — -0.62 — — — — — — — — — — — — — — — —
25 1977 1619 116.5 — — — — +106 — -82 51.4% +0.20 1–2 (33%) 2–3 (40%) 98.5 +2.87 — — — — — — — — — — — — — — — —
26 1978 1517 103.1 — — — — +118 -78 -14 17.9% -2.54 0–1 — — +0.45 — — — — — — — — — — — — — — — —
27 1979 1504 95.7 — — — — — — — 0.0% -4.50 — — — +0.08 — — — — — — — — — — — — — — — —
29 — — — — — — — — — — — — — — — — 1978 1519 105.3 — — — — +93 +29 — 40.7% -0.78 0–1 0–1 — +1.27
30 — — — — — — — — — — — — — — — — 1979 1514 102.1 — — — — — — — 33.3% -1.50 — — — -0.03
31 — — — — — — — — — — — — — — — — 1980 1545 106.5 — — — — +1 — — 43.6% -0.61 4–1 (80%) 1–3 (25%) 102.5 +0.24
32 — — — — — — — — — — — — — — — — 1981 1515 99.1 — — — — — — — 20.0% -1.60 0–1 — — +0.36
34 — — — — — — — — — — — — — — — — 1983 1487 93.3 — — — — — — — 0.0% -3.75 — — — +0.10
Career — 1675 114.8 — — — — +68 -84 -39 38.4% -0.85 17–9 (65%) 5–10 (33%) 103.0 +6.48 — 1555 104.1 — — — — +36 +29 — 38.3% -0.95 4–3 (57%) 1–4 (20%) 98.8 +5.24

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.