H2H data updated: 2026-07-19 14:15 UTC
Ann Kiyomura Hayashi vs Patricia Bostrom H2H: 0-1
Patricia Bostrom holds a 1–0 lead over Ann Kiyomura Hayashi in their WTA head-to-head. They have met 1 times in main draws. Most recently, Patricia Bostrom won the 1975 St. Petersburg fourth round 3-6 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.
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Mar 14, 1975* | St. Petersburg | WTA 500 | R16 | — | Patricia Bostrom | 3-6 6-3 6-0 | Ann Kiyomura Hayashi | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ann Kiyomura Hayashi | — | — | — | 1,924 | 182 | 200 | 47.6% | 0 | 0 | 0 | 0 | 2 | 2 |
| Patricia Bostrom | — | — | — | 1,685 | 57 | 88 | 39.3% | 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.
| Age | Ann Kiyomura Hayashi | Patricia Bostrom | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 12 | 1968 | 0–1 | 0.0% | — | 1,488 | 0 | 0 | — | — | — | — | — | — | — |
| 13 | 1969 | 0–1 | 0.0% | — | 1,473 | 0 | 0 | — | — | — | — | — | — | — |
| 14 | 1970 | 0–1 | 0.0% | — | 1,459 | 0 | 0 | — | — | — | — | — | — | — |
| 15 | 1971 | 0–1 | 0.0% | — | 1,456 | 0 | 0 | — | — | — | — | — | — | — |
| 16 | 1972 | 5–4 | 55.6% | — | 1,515 | 0 | 0 | — | — | — | — | — | — | — |
| 17 | 1973 | 28–30 | 48.3% | — | 1,649 | 0 | 0 | 1969 | 1–1 | 50.0% | — | 1,503 | 0 | 0 |
| 18 | 1974 | 24–13 | 64.9% | — | 1,789 | 0 | 0 | 1970 | 1–4 | 20.0% | — | 1,484 | 0 | 0 |
| 19 | 1975 | 7–12 | 36.8% | — | 1,770 | 0 | 0 | 1971 | 0–4 | 0.0% | — | 1,452 | 0 | 0 |
| 20 | 1976 | 9–16 | 36.0% | — | 1,714 | 0 | 0 | 1972 | 7–7 | 50.0% | — | 1,499 | 0 | 1 |
| 21 | 1977 | 4–8 | 33.3% | — | 1,731 | 0 | 0 | 1973 | 16–23 | 41.0% | — | 1,598 | 0 | 1 |
| 22 | 1978 | 10–7 | 58.8% | — | 1,803 | 0 | 1 | 1974 | 12–10 | 54.5% | — | 1,662 | 0 | 1 |
| 23 | 1979 | 26–22 | 54.2% | — | 1,873 | 0 | 1 | 1975 | 5–6 | 45.5% | — | 1,632 | 0 | 1 |
| 24 | 1980 | 13–20 | 39.4% | — | 1,719 | 0 | 1 | 1976 | 4–7 | 36.4% | — | 1,650 | 0 | 1 |
| 25 | 1981 | 23–19 | 54.8% | — | 1,853 | 0 | 2 | 1977 | 8–9 | 47.1% | — | 1,633 | 0 | 1 |
| 26 | 1982 | 18–20 | 47.4% | — | 1,827 | 0 | 2 | 1978 | 3–16 | 15.8% | — | 1,523 | 0 | 1 |
| 27 | 1983 | 13–20 | 39.4% | — | 1,713 | 0 | 2 | 1979 | 0–1 | 0.0% | — | 1,511 | 0 | 1 |
| 28 | 1984 | 2–5 | 28.6% | — | 1,684 | 0 | 2 | — | — | — | — | — | — | — |