Player data updated: 2026-09-01 02:16 UTC
Kazuko Sawamatsu
Kazuko Sawamatsu represented Japan on the WTA Tour. In TennisDB's records, Kazuko Sawamatsu finished with a career record of 179–100 and 9 singles titles. Weekly WTA ranking coverage before 1984 is incomplete outside audited No. 1 and year-end Top 10 anchors.
Peak ranking
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Elo peak
1955 (90th percentile)
Career record
179–100 (64.2%)
Career titles
9
Records cover recorded main-draw singles results in TennisDB's WTA event archive, including credited walkovers; qualifying is shown separately below.
WTA Matches full match log →
| Opponent | Score | Result | H2H | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Ann Kiyomura Hayashi | 6-2 3-6 6-1 | W | H2H | Match data | Nov 9, 1975* | F | Tokyo Japan Open | WTA 250 | Clay |
| Fiorella Bonicelli | 1-6 6-4 7-5 | W | H2H | Match data | Nov 3, 1975 | RR | Tokyo Japan Open | WTA 250 | Clay |
| Evonne Goolagong | 6-7 5-7 | L | H2H | Match data | Sep 6, 1975* | QF | US Open | Grand Slam | Clay |
| Linky Boshoff | 6-2 7-6 | W | H2H | Match data | Sep 4, 1975* | R16 | US Open | Grand Slam | Clay |
| Julie Heldman | 6-4 6-1 | W | H2H | Match data | Sep 2, 1975* | R32 | US Open | Grand Slam | Clay |
Rivals all rivalries →
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Evonne Goolagong | 0 | 9 | 9 | Sep 6, 1975 | H2H |
| Olga Morozova | 2 | 6 | 8 | Dec 7, 1974 | H2H |
| Julie Heldman | 2 | 4 | 6 | Sep 2, 1975 | H2H |
| Kerry Reid | 0 | 6 | 6 | Dec 21, 1974 | H2H |
| Helen Gourlay | 1 | 4 | 5 | Oct 21, 1974 | H2H |
Titles (9)
| Season | Age | Titles | GS | WTA 1000 including documented historical predecessor categories | WTA 500 including documented historical predecessor categories | WTA 250 including documented historical predecessor categories | WTA Finals | Tournaments |
|---|---|---|---|---|---|---|---|---|
| 1969 | 18 | 1 | — | — | — | 1 | — | Senigallia |
| 1970 | 19 | 1 | — | — | — | 1 | — | Japan Women's Open |
| 1971 | 20 | 1 | — | — | — | 1 | — | Cardiff |
| 1972 | 21 | 3 | — | — | 1 | 2 | — | Gstaad, Hong Kong Open, Pan Pacific Open |
| 1974 | 23 | 2 | — | — | — | 2 | — | Costa Mesa, Tokyo Sillook |
| 1975 | 24 | 1 | — | — | — | 1 | — | Tokyo Japan Open |
| Total | 9 | — | — | 1 | 8 | — |
Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
Career Results
Career Results by Surface
| Season | Age | Hard | Clay | Grass | Carpet | Total | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1968 | 17 | — | — | — | — | 9 | 5 | 14 | 64.3% | 0 | 2 | 2 | 0.0% | — | — | — | — | 9 | 7 | 16 | 56.2% |
| 1969 | 18 | — | — | — | — | 13 | 6 | 19 | 68.4% | 3 | 2 | 5 | 60.0% | — | — | — | — | 16 | 8 | 24 | 66.7% |
| 1970 | 19 | — | — | — | — | 3 | 4 | 7 | 42.9% | 4 | 4 | 8 | 50.0% | — | — | — | — | 10 | 8 | 18 | 55.6% |
| 1971 | 20 | — | — | — | — | 4 | 4 | 8 | 50.0% | 14 | 6 | 20 | 70.0% | — | — | — | — | 18 | 10 | 28 | 64.3% |
| 1972 | 21 | 1 | 1 | 2 | 50.0% | 11 | 7 | 18 | 61.1% | 13 | 8 | 21 | 61.9% | 3 | 0 | 3 | 100.0% | 28 | 16 | 44 | 63.6% |
| 1973 | 22 | 3 | 1 | 4 | 75.0% | 18 | 8 | 26 | 69.2% | 16 | 9 | 25 | 64.0% | 1 | 3 | 4 | 25.0% | 38 | 21 | 59 | 64.4% |
| 1974 | 23 | 6 | 1 | 7 | 85.7% | 11 | 9 | 20 | 55.0% | 17 | 9 | 26 | 65.4% | 3 | 1 | 4 | 75.0% | 37 | 20 | 57 | 64.9% |
| 1975 | 24 | — | — | — | — | 19 | 7 | 26 | 73.1% | 4 | 3 | 7 | 57.1% | — | — | — | — | 23 | 10 | 33 | 69.7% |
| Career | — | 10 | 3 | 13 | 76.9% | 88 | 50 | 138 | 63.8% | 71 | 43 | 114 | 62.3% | 7 | 4 | 11 | 63.6% | 179 | 100 | 279 | 64.2% |
Advanced Stats
| Season | Age | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1968 | 17 | 1556 | 119.1 | — | — | — | — | — | +59 | — | 56.3% | +0.87 | 2–0 | — | — | +0.07 |
| 1969 | 18 | 1674 | 127.4 | — | — | — | — | — | +49 | -122 | 64.7% | +1.25 | 2–1 (67%) | — | — | +0.72 |
| 1970 | 19 | 1727 | 133.7 | — | — | — | — | — | -29 | -107 | 59.1% | +0.75 | 2–6 (25%) | — | — | -1.68 |
| 1971 | 20 | 1827 | 139.8 | — | — | — | — | — | -118 | 0 | 59.3% | +0.81 | 6–1 (86%) | 1–0 | — | -2.27 |
| 1972 | 21 | 1848 | 149.8 | — | — | — | — | -200 | -59 | +3 | 61.1% | +1.22 | 5–4 (56%) | — | — | -3.87 |
| 1973 | 22 | 1826 | 145.5 | — | — | — | — | -160 | +61 | +45 | 60.9% | +0.99 | 10–5 (67%) | 3–4 (43%) | 104.0 | +1.60 |
| 1974 | 23 | 1900 | 150.9 | — | — | — | — | -79 | -49 | +35 | 61.7% | +0.94 | 8–2 (80%) | 4–3 (57%) | 106.4 | -3.51 |
| 1975 | 24 | 1955 | 150.1 | — | — | — | — | — | +26 | -50 | 64.9% | +1.09 | 6–2 (75%) | 3–1 (75%) | 106.5 | -0.94 |
| Career | 1955 | 150.4 | — | — | — | — | -131 | +6 | +3 | 61.3% | +1.01 | 41–21 (66%) | 11–8 (58%) | 110.7 | -3.61 |
Tournament Results by Category
Grand Slams
| Season | Age | AO | RG | W | USO | W-L Win % |
|---|---|---|---|---|---|---|
| 1968 | 17 | — | R128 | R128 | — | 0–2 (0%) |
| 1969 | 18 | — | R32 | R128 | — | 1–2 (33%) |
| 1970 | 19 | — | R64 | R32 | — | 1–2 (33%) |
| 1971 | 20 | — | R16 | R32 | — | 4–2 (67%) |
| 1972 | 21 | — | R64 | R64 | R32 | 3–3 (50%) |
| 1973 | 22 | SF | R32 | R64 | R32 | 6–4 (60%) |
| 1974 | 23 | R16 | R64 | R32 | R64 | 4–4 (50%) |
| 1975 | 24 | QF | QF | R32 | QF | 10–4 (71%) |
| W-L | 7–3 (70%) | 8–8 (50%) | 8–8 (50%) | 6–4 (60%) |
29–23 (56%) |
WTA 500
| Season | Age | ADE | BRI | SPB | PAN | SYD | W-L Win % |
|---|---|---|---|---|---|---|---|
| 1970 | 19 | SF | — | — | — | — | 1–1 (50%) |
| 1971 | 20 | — | — | — | — | SF | 3–1 (75%) |
| 1972 | 21 | — | — | — | W | — | 3–0 (100%) |
| 1973 | 22 | — | F | — | — | QF | 5–2 (71%) |
| 1974 | 23 | SF | — | R16 | — | QF | 8–4 (67%) |
| W-L | 4–2 (67%) | 3–1 (75%) | 1–1 (50%) | 3–0 (100%) | 9–4 (69%) |
20–8 (71%) |
WTA 250
| Season | Age | ADE | ASB | BAD | CIN | DAL | EAS | GST | HAM | HKG | KIT | MEL | MUN | NAP | NWP | QUE | ITA | TKY | AIX | AKR | BAD | BOS | BOU | BRI | CAN | CAR | CHA | CHR | COS | DUS | DUT | GUI | HAV | HIL | HOB | HOB | LON | MON | NEW | NIC | ORL | JAP | PER | PER | PHI | PHO | SEN | SOU | TRA | WES | WES | W-L Win % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1968 | 17 | — | — | — | — | — | — | SF | R32 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | R16 | — | — | — | — | — | R16 | — | — | — | — | — | — | — | SF | — | — | W | — | — | — | — | — | — | — | — | W | — | 9–5 (64%) |
| 1969 | 18 | — | — | QF | — | — | — | — | — | — | QF | — | SF | — | — | QF | — | — | SF | — | SF | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W | — | — | — | — | 15–6 (71%) |
| 1970 | 19 | — | — | — | — | — | — | QF | — | — | — | — | — | — | — | R32 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | R32 | — | — | — | — | — | — | F | — | — | — | W | R16 | — | — | — | — | — | — | — | — | 8–5 (62%) |
| 1971 | 20 | — | — | — | — | — | — | — | QF | — | R16 | SF | — | — | — | R32 | — | — | — | — | — | — | — | — | — | W | — | R16 | — | — | — | — | — | — | QF | — | — | — | — | — | — | — | — | — | — | — | — | — | QF | — | — | 11–7 (61%) |
| 1972 | 21 | R16 | — | — | R16 | — | — | W | SF | W | QF | — | — | R16 | — | R16 | — | — | — | — | — | — | — | R16 | R16 | — | — | — | — | QF | — | — | SF | — | — | QF | — | — | — | — | — | — | — | SF | — | — | — | R64 | — | — | — | 22–13 (63%) |
| 1973 | 22 | — | SF | — | — | SF | — | — | SF | — | — | — | — | — | — | — | R32 | — | — | R16 | — | R16 | R16 | — | — | — | SF | — | — | SF | — | F | — | — | SF | — | R64 | — | QF | — | — | — | QF | — | — | — | — | — | F | — | — | 27–15 (64%) |
| 1974 | 23 | — | — | — | — | — | QF | — | SF | — | — | — | — | R64 | R16 | — | QF | W | — | — | — | — | — | — | SF | — | — | — | W | — | — | — | — | R32 | — | — | — | — | — | — | — | — | QF | — | R16 | R16 | — | — | SF | — | — | 23–11 (68%) |
| 1975 | 24 | — | — | — | — | — | R64 | — | F | — | — | — | — | — | — | — | R16 | W | — | — | — | — | QF | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SF | — | — | — | — | — | — | — | — | — | — | R16 | 13–6 (68%) |
| W-L | 0–1 (0%) | 2–1 (67%) | 0–1 (0%) | 1–1 (50%) | 3–1 (75%) | 3–2 (60%) | 7–2 (78%) | 15–6 (71%) | 2–0 (100%) | 3–3 (50%) | 4–1 (80%) | 2–1 (67%) | 1–2 (33%) | 2–1 (67%) | 7–4 (64%) | 3–3 (50%) | 4–0 (100%) | 3–1 (75%) | 0–1 (0%) | 0–1 (0%) | 0–1 (0%) | 5–2 (71%) | 0–2 (0%) | 3–2 (60%) | 1–0 (100%) | 3–1 (75%) | 1–1 (50%) | 5–0 (100%) | 2–3 (40%) | 0–1 (0%) | 4–1 (80%) | 3–1 (75%) | 0–1 (0%) | 4–2 (67%) | 1–1 (50%) | 0–1 (0%) | 4–2 (67%) | 1–1 (50%) | 1–1 (50%) | 3–0 (100%) | 3–0 (100%) | 4–3 (57%) | 3–1 (75%) | 1–1 (50%) | 1–1 (50%) | 5–0 (100%) | 1–1 (50%) | 3–3 (50%) | 2–0 (100%) | 2–1 (67%) |
128–68 (65%) |
Results show the best round reached per tournament and season.
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.
Data coverage: Weekly WTA ranking snapshots are unavailable before 1984. Audited official No. 1 change dates and year-end Top 10 ranks are included, but weekly counts and ranks outside those anchors remain incomplete.
Frequently Asked Questions
- How old is Kazuko Sawamatsu?
- Kazuko Sawamatsu is 75 years old, born on January 5, 1951.
- Which country does Kazuko Sawamatsu represent?
- Kazuko Sawamatsu represents Japan in TennisDB's WTA records.
- Is Kazuko Sawamatsu left-handed or right-handed?
- Kazuko Sawamatsu plays right-handed.
- How many Grand Slams has Kazuko Sawamatsu won?
- Kazuko Sawamatsu has not won a Grand Slam title.
- How many WTA 1000 titles has Kazuko Sawamatsu won?
- TennisDB does not group any of Kazuko Sawamatsu's titles under the modern WTA 1000 category.
- How many WTA titles has Kazuko Sawamatsu won?
- Kazuko Sawamatsu has won 9 WTA singles titles across all categories. The most recent was Tokyo Japan Open in 1975.
- What is Kazuko Sawamatsu's career win-loss record?
- Kazuko Sawamatsu has a career WTA singles record of 179 wins and 100 losses (64.2%).
- Which seasons of Kazuko Sawamatsu's career appear in TennisDB?
- Kazuko Sawamatsu appears in TennisDB's WTA main-tour match records from 1968 through 1975.
- On which surface does Kazuko Sawamatsu have the highest recorded win rate?
- Among surfaces with at least 20 recorded matches, Kazuko Sawamatsu's highest WTA main-draw win rate is on clay: 63.8% (88–50).
- Who has Kazuko Sawamatsu faced most often?
- Kazuko Sawamatsu's most frequent opponent is Evonne Goolagong, with a head-to-head record of 0–9 across 9 meetings.