Kathy Obrien
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 |
H2H data updated: 2026-09-08 00:00 UTC
Kathy Obrien vs Rita Agassi H2H: 0-1
Rita Agassi holds a 1–0 lead over Kathy Obrien in their WTA head-to-head. Across 1 main-draw meeting, Rita Agassi leads 1–0 on hard courts. Most recently, Rita Agassi won the 1980 Flemington quarterfinal 6-2 6-4.
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
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Rita Agassi | 6-2 6-4 | Kathy Obrien | Match data | Aug 18, 1980* | QF | Flemington | WTA 250 | Hard |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kathy Obrien | — | — | — | 1,536 | 10 | 12 | 45.5% | 0 | 0 | 0 | 0 | 1 | 1 |
| Rita Agassi | — | — | — | 1,686 | 32 | 22 | 59.3% | 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.
| Kathy Obrien | Rita Agassi | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1978 | 1–1 | 50.0% | — | 1,503 | 0 | 0 | 1974 | 0–1 | 0.0% | — | 1,486 | 0 | 0 |
| 1979 | 2–1 | 66.7% | — | 1,520 | 0 | 1 | 1978 | 1–1 | 50.0% | — | 1,498 | 0 | 0 |
| 1980 | 3–4 | 42.9% | — | 1,519 | 0 | 1 | 1980 | 17–13 | 56.7% | — | 1,594 | 0 | 0 |
| 1981 | 1–1 | 50.0% | — | 1,531 | 0 | 1 | 1981 | 13–5 | 72.2% | — | 1,666 | 0 | 1 |
| 1982 | 1–1 | 50.0% | — | 1,527 | 0 | 1 | 1982 | 1–2 | 33.3% | — | 1,634 | 0 | 1 |
| 1983 | 2–4 | 33.3% | — | 1,514 | 0 | 1 | — | — | — | — | — | — | — |
Surface Results by Career Season
Rows are aligned in career order because complete birth data is unavailable. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Kathy Obrien | Rita Agassi | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Yr | Hard | Clay | ||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1979 | 0 | 1 | 1 | 0.0% | — | — | — | — | 1974 | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 1980 | 3 | 4 | 7 | 42.9% | — | — | — | — | 1980 | 9 | 5 | 14 | 64.3% | 0 | 1 | 1 | 0.0% |
| 1983 | 0 | 3 | 3 | 0.0% | — | — | — | — | 1982 | 1 | 2 | 3 | 33.3% | — | — | — | — |
| Career | 3 | 8 | 11 | 27.3% | — | — | — | — | Career | 10 | 8 | 18 | 55.6% | 0 | 1 | 1 | 0.0% |
Advanced Statistics Comparison by Career Season
Rows are aligned in career order because complete birth data is unavailable. 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.
| Kathy Obrien | Rita Agassi | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1978 | 1503 | 99.3 | — | — | — | — | — | — | — | 40.0% | -1.00 | 1–0 | — | — | +0.02 | 1974 | 1486 | 97.9 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | +0.24 |
| 1979 | 1521 | 101.2 | — | — | — | — | — | — | — | 50.0% | +0.50 | 2–0 | 0–1 | — | +0.58 | 1978 | 1499 | 107.2 | — | — | — | — | — | — | — | 50.0% | -1.00 | — | — | — | -0.23 |
| 1980 | 1520 | 99.2 | — | — | — | — | +20 | — | — | 38.9% | -0.67 | 3–1 (75%) | 2–0 | — | +0.83 | 1980 | 1595 | 112.0 | — | — | — | — | +54 | — | — | 55.7% | +0.57 | 3–0 (100%) | 1–2 (33%) | 103.5 | +2.13 |
| 1981 | 1531 | 107.3 | — | — | — | — | — | — | — | 50.0% | 0.00 | — | — | — | -0.35 | 1981 | 1666 | 121.6 | — | — | — | — | — | — | — | 70.5% | +1.21 | 3–5 (38%) | 1–1 | — | +0.15 |
| 1982 | 1527 | 103.6 | — | — | — | — | — | — | — | 50.0% | +1.00 | — | — | — | +0.08 | 1982 | 1635 | 95.5 | — | — | — | — | -12 | — | — | 33.3% | -1.33 | — | — | — | +0.41 |
| 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 | Career | 1686 | 114.8 | — | — | — | — | +42 | — | — | 59.0% | +0.58 | 6–5 (55%) | 2–3 (40%) | 99.0 | +5.00 |
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.
Rita Agassi
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Tina Mochizuki | 3 | 0 | 3 | Aug 23, 1981 | H2H |
| Felicia Raschiatore | 1 | 1 | 2 | Aug 15, 1981 | H2H |
| Renee Richards | 0 | 2 | 2 | Aug 18, 1980 | H2H |
| Helen Park | 1 | 1 | 2 | Jul 25, 1980 | H2H |
| Janet Newberry | 2 | 0 | 2 | Jul 19, 1980 | H2H |