Player data updated: 2026-09-01 02:16 UTC
Kathy Obrien
Kathy Obrien represented the United States on the WTA Tour. In TennisDB's records, Kathy Obrien finished with a career record of 10–12 and one singles title. 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
1536 (18th percentile)
Career record
10–12 (45.5%)
Career titles
1
Prize money
$9,211
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 |
|---|---|---|---|---|---|---|---|---|---|
| Betsy Nagelsen | 4-6 6-2 2-6 | L | H2H | Match data | Oct 22, 1983* | QF | Tokyo Japan Open | WTA 250 | — |
| Kaoru Okamoto | 4-6 6-3 6-4 | W | H2H | Match data | Oct 21, 1983* | R16 | Tokyo Japan Open | WTA 250 | — |
| Helena Manset | 4-6 7-5 6-2 | W | H2H | Match data | Oct 20, 1983* | R32 | Tokyo Japan Open | WTA 250 | — |
| Nanette Schutte | 6-3 3-6 2-6 | L | H2H | Match data | Oct 13, 1983* | R32 | Tokyo Borden | WTA 250 | Hard |
| Yvonne Vermaak | 5-7 3-6 | L | H2H | Match data | Sep 15, 1983* | R32 | Salt Lake City | WTA 250 | Hard |
Rivals all rivalries →
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Betsy Nagelsen | 0 | 1 | 1 | Oct 22, 1983 | H2H |
| Kaoru Okamoto | 1 | 0 | 1 | Oct 21, 1983 | H2H |
| Helena Manset | 1 | 0 | 1 | Oct 20, 1983 | H2H |
| Nanette Schutte | 0 | 1 | 1 | Oct 13, 1983 | H2H |
| Yvonne Vermaak | 0 | 1 | 1 | Sep 15, 1983 | H2H |
Titles (1)
| Season | 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 |
|---|---|---|---|---|---|---|---|
| 1979 | 1 | — | — | — | 1 | — | Dallas Open |
| Total | 1 | — | — | — | 1 | — |
Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
Career Results
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 % | |
| 1978 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 1979 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 2 | 1 | 3 | 66.7% |
| 1980 | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | 3 | 4 | 7 | 42.9% |
| 1981 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 1982 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 1983 | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — | 2 | 4 | 6 | 33.3% |
| Career | 3 | 8 | 11 | 27.3% | — | — | — | — | — | — | — | — | 10 | 12 | 22 | 45.5% |
Advanced Stats
| Season | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1978 | 1503 | 99.3 | — | — | — | — | — | — | — | 40.0% | -1.00 | 1–0 | — | — | +0.02 |
| 1979 | 1521 | 101.2 | — | — | — | — | — | — | — | 50.0% | +0.50 | 2–0 | 0–1 | — | +0.58 |
| 1980 | 1520 | 99.2 | — | — | — | — | +20 | — | — | 38.9% | -0.67 | 3–1 (75%) | 2–0 | — | +0.83 |
| 1981 | 1531 | 107.3 | — | — | — | — | — | — | — | 50.0% | 0.00 | — | — | — | -0.35 |
| 1982 | 1527 | 103.6 | — | — | — | — | — | — | — | 50.0% | +1.00 | — | — | — | +0.08 |
| 1983 | 1515 | 102.3 | — | — | — | — | +3 | — | — | 41.2% | -0.18 | 2–3 (40%) | 0–1 | — | +0.39 |
| Career | 1536 | 103.8 | — | — | — | — | +15 | — | — | 42.9% | -0.22 | 8–4 (67%) | 2–2 (50%) | 104.3 | +7.05 |
Tournament Results by Category
WTA 500
WTA 250
| Season | DAL | TKY | BET | ERI | FAY | FLE | LAK | LOS | LOS | MAN | MON | SAL | ST. | W-L Win % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1978 | — | — | — | — | — | — | — | — | R16 | — | — | — | — | 1–1 (50%) |
| 1979 | W | — | — | — | — | — | — | — | — | — | — | — | — | 2–0 (100%) |
| 1980 | — | — | — | R16 | — | QF | — | — | — | — | R16 | — | R32 | 3–4 (43%) |
| 1981 | — | — | — | — | — | — | R32 | R32 | — | — | — | — | — | 1–1 (50%) |
| 1982 | — | — | R32 | — | R32 | — | — | — | — | — | — | — | — | 1–1 (50%) |
| 1983 | — | QF | — | — | — | — | — | — | — | R64 | — | R32 | — | 2–3 (40%) |
| W-L | 2–0 (100%) | 2–1 (67%) | 1–0 (100%) | 1–1 (50%) | 0–1 (0%) | 1–1 (50%) | 0–1 (0%) | 1–0 (100%) | 1–1 (50%) | 0–1 (0%) | 1–1 (50%) | 0–1 (0%) | 0–1 (0%) |
10–10 (50%) |
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
- Which country does Kathy Obrien represent?
- Kathy Obrien represents United States in TennisDB's WTA records.
- How many Grand Slams has Kathy Obrien won?
- Kathy Obrien has not won a Grand Slam title.
- How many WTA 1000 titles has Kathy Obrien won?
- TennisDB does not group any of Kathy Obrien's titles under the modern WTA 1000 category.
- How many WTA titles has Kathy Obrien won?
- Kathy Obrien has won 1 WTA singles title across all categories. The most recent was Dallas Open in 1979.
- What is Kathy Obrien's career win-loss record?
- Kathy Obrien has a career WTA singles record of 10 wins and 12 losses (45.5%).
- How much career prize money has Kathy Obrien earned?
- Kathy Obrien has earned at least $9,211 in career prize money from professional tennis.
- Which seasons of Kathy Obrien's career appear in TennisDB?
- Kathy Obrien appears in TennisDB's WTA main-tour match records from 1978 through 1983.
- Who has Kathy Obrien faced most often?
- Kathy Obrien's most frequent opponent is Betsy Nagelsen, with a head-to-head record of 0–1 across 1 meeting.