Hiroko Kosaka
Peak ranking
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Elo peak
1500 (4.6%ile)
Career record
0–1 (0.0%)
Career titles
0
Recent WTA Matches full match log →
| Date | Tournament | Category | Round | Surface | Opponent | Score | Result | H2H | Match |
|---|---|---|---|---|---|---|---|---|---|
| Aug 13, 1968 | Toronto | WTA 250 | R16 | Clay | Louise Brown | 0-6 0-6 | L | H2H | Match data |
Rivals full rivalries list →
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Louise Brown | 0 | 1 | 1 | Aug 13, 1968 | H2H |
Career Results
| Season | W | L | M | Win % | Start Rank | End Rank |
|---|---|---|---|---|---|---|
| 1968 | 0 | 1 | 1 | 0.0% | — | — |
| Career | 0 | 1 | 1 | 0.0% | — | — |
Career Results by Surface
| Season | Hard | Clay | Grass | Total | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |
| 1968 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| Career | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
Advanced Stats
| Season | ELO | ELO % | Hard % | Clay % | Grass % | Set Win % | Set Margin | SoS % | Deep Run % | Dec. Set W% | TB W | TB L | TB W% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1968 | 1483 | 31 | — | — | — | 0.0% | -6.00 | 8 | 0 | — | 0 | 0 | — |
| Career | 1483 | 31 | — | — | — | 0.0% | -6.00 | 8 | 0 | — | 0 | 0 | — |
Tournament Results by Category
Data coverage note: WTA ranking data is unavailable before 1983 from any current source. Weeks at #1, year-end finishes, and peak ranking for this player's early career may be incomplete or absent.
WTA Ranking History full ranking history →
Career high
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Career-high date
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First top 100
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First top 50
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First top 20
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First top 10
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Ranking History Matrix
No ranking history available.
Similar Players
Other WTA players ranked by a composite similarity score over country, era, and peak rank.
| Player | Country | Peak Rank | Peak Elo | Grand Slams | Titles | M | W | L | Win % | Active Years | Match Log |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Margaret Court | AUS | — | 2,487 | 11 | 95 | 680 | 616 | 64 | 90.6% | 1968-1977 | Match log |
| Kerry Reid | AUS | — | 2,215 | 1 | 22 | 831 | 586 | 245 | 70.5% | 1968-1985 | Match log |
| Betty Stove | NED | — | 2,165 | 0 | 7 | 717 | 413 | 304 | 57.6% | 1969-1983 | Match log |
Frequently Asked Questions
- How many Grand Slams has Hiroko Kosaka won?
- Hiroko Kosaka has not won a Grand Slam title.
- How many WTA 1000 titles has Hiroko Kosaka won?
- Hiroko Kosaka has not won a WTA 1000 title.
- What is Hiroko Kosaka's career win-loss record?
- Hiroko Kosaka has a career WTA singles record of 0 wins and 1 losses (0.0%).
- When did Hiroko Kosaka play professional tennis?
- Hiroko Kosaka turned professional in 1968 and was active through 1968.
- Who is Hiroko Kosaka's biggest rival?
- Hiroko Kosaka's most frequent opponent is Louise Brown, with a head-to-head record of 0–1 across 1 meeting.