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: 2026-09-12 00:00 UTC
Kathy Obrien vs Donna Rubin H2H: 1-0
Kathy Obrien holds a 1–0 lead over Donna Rubin in their WTA head-to-head. Across 1 main-draw meeting, Kathy Obrien leads 1–0 on hard courts. Most recently, Kathy Obrien won the 1980 Monroeville round of 32 4-6 7-6 6-2.
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 |
|---|---|---|---|---|---|---|---|---|
| Kathy Obrien | 4-6 7-6 6-2 | Donna Rubin | Match data | Jul 24, 1980* | R32 | Monroeville | 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 |
| Donna Rubin | — | — | — | 1,586 | 9 | 10 | 47.4% | 0 | 0 | 0 | 0 | 0 | 0 |
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 | Donna Rubin | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1977 | 1–1 | 50.0% | — | 1,509 | 0 | 0 |
| 1979 | 2–1 | 66.7% | — | 1,520 | 0 | 1 | 1980 | 3–2 | 60.0% | — | 1,541 | 0 | 0 |
| 1980 | 3–4 | 42.9% | — | 1,519 | 0 | 1 | 1981 | 2–2 | 50.0% | — | 1,556 | 0 | 0 |
| 1981 | 1–1 | 50.0% | — | 1,531 | 0 | 1 | 1982 | 3–4 | 42.9% | — | 1,547 | 0 | 0 |
| 1982 | 1–1 | 50.0% | — | 1,527 | 0 | 1 | 1984 | 0–1 | 0.0% | — | 1,531 | 0 | 0 |
| 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 | Donna Rubin | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | ||
| 1979 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1977 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 1980 | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1982 | — | — | — | — | 3 | 3 | 6 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1984 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| Career | 3 | 8 | 11 | 27.3% | — | — | — | — | — | — | — | — | — | — | — | — | Career | 3 | 2 | 5 | 60.0% | 4 | 5 | 9 | 44.4% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% |
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 | Donna Rubin | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1977 | 1509 | 98.3 | — | — | — | — | — | — | — | 50.0% | -1.25 | — | 1–0 | — | +0.40 |
| 1979 | 1521 | 101.2 | — | — | — | — | — | — | — | 50.0% | +0.50 | 2–0 | 0–1 | — | +0.58 | 1980 | 1542 | 106.8 | — | — | — | — | +50 | — | — | 53.8% | +0.85 | 2–1 (67%) | 0–1 | — | +0.53 |
| 1980 | 1520 | 99.2 | — | — | — | — | +20 | — | — | 38.9% | -0.67 | 3–1 (75%) | 2–0 | — | +0.83 | 1981 | 1557 | 102.5 | — | — | — | — | — | — | — | 55.6% | -0.11 | 0–1 | 1–0 | — | -0.22 |
| 1981 | 1531 | 107.3 | — | — | — | — | — | — | — | 50.0% | 0.00 | — | — | — | -0.35 | 1982 | 1547 | 105.8 | — | — | — | — | — | +10 | — | 43.8% | -0.69 | 1–1 | 1–0 | — | +0.45 |
| 1982 | 1527 | 103.6 | — | — | — | — | — | — | — | 50.0% | +1.00 | — | — | — | +0.08 | 1984 | 1532 | 96.3 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.14 |
| 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 | 1586 | 104.4 | — | — | — | — | +50 | +10 | — | 47.7% | -0.30 | 3–3 (50%) | 3–1 (75%) | 101.7 | +6.84 |
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.
Donna Rubin
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Renee Richards | 0 | 2 | 2 | Jul 5, 1980 | H2H |
| Adriana Villagran Reami | 0 | 1 | 1 | Aug 6, 1984 | H2H |
| Nancy Yeargin | 0 | 1 | 1 | Jun 3, 1982 | H2H |
| Pilar Vasquez | 0 | 1 | 1 | Apr 8, 1982 | H2H |
| Laura Arraya | 0 | 1 | 1 | Apr 2, 1982 | H2H |