Ada Bakker
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Laura Dupont | 0 | 2 | 2 | Jul 28, 1972 | H2H |
| Heide Orth | 1 | 1 | 2 | Jun 26, 1970 | H2H |
| Joyce Williams | 0 | 2 | 2 | Jul 19, 1969 | H2H |
| Rosie Casals | 0 | 2 | 2 | Jun 13, 1969 | H2H |
| Sandy Stap | 0 | 1 | 1 | Jun 30, 1972 | H2H |
H2H data updated: 2026-08-31 00:00 UTC
Ada Bakker vs Betty Ann Grubb H2H: 0-1
Betty Ann Grubb holds a 1–0 lead over Ada Bakker in their WTA head-to-head. Across 1 main-draw meeting, Betty Ann Grubb leads 1–0 on grass. Most recently, Betty Ann Grubb won the 1970 Wimbledon round of 32 7-5 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
| Winner | Score | Loser | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Betty Ann Grubb | 7-5 6-2 | Ada Bakker | Match data | Jun 28, 1970* | R32 | Wimbledon | Grand Slam | Grass |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ada Bakker | — | — | — | 1,537 | 18 | 36 | 33.3% | 0 | 0 | 0 | 0 | 1 | 1 |
| Betty Ann Grubb | — | — | — | 1,824 | 124 | 112 | 52.5% | 0 | 0 | 0 | 0 | 6 | 6 |
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.
| Ada Bakker | Betty Ann Grubb | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 3–8 | 27.3% | — | 1,479 | 0 | 0 | 1968 | 21–8 | 72.4% | — | 1,633 | 0 | 2 |
| 1969 | 8–11 | 42.1% | — | 1,513 | 0 | 1 | 1969 | 29–14 | 67.4% | — | 1,777 | 0 | 4 |
| 1970 | 4–10 | 28.6% | — | 1,485 | 0 | 1 | 1970 | 18–15 | 54.5% | — | 1,684 | 0 | 4 |
| 1971 | 3–5 | 37.5% | — | 1,507 | 0 | 1 | 1971 | 5–11 | 31.2% | — | 1,679 | 0 | 4 |
| 1972 | 0–2 | 0.0% | — | 1,481 | 0 | 1 | 1972 | 2–2 | 50.0% | — | 1,673 | 0 | 5 |
| — | — | — | — | — | — | — | 1973 | 4–4 | 50.0% | — | 1,699 | 0 | 6 |
| — | — | — | — | — | — | — | 1974 | 7–10 | 41.2% | — | 1,675 | 0 | 6 |
| — | — | — | — | — | — | — | 1975 | 5–4 | 55.6% | — | 1,728 | 0 | 6 |
| — | — | — | — | — | — | — | 1976 | 2–4 | 33.3% | — | 1,683 | 0 | 6 |
| — | — | — | — | — | — | — | 1977 | 0–2 | 0.0% | — | 1,652 | 0 | 6 |
| — | — | — | — | — | — | — | 1978 | 3–1 | 75.0% | — | 1,660 | 0 | 6 |
| — | — | — | — | — | — | — | 1979 | 25–26 | 49.0% | — | 1,816 | 0 | 6 |
| — | — | — | — | — | — | — | 1980 | 2–9 | 18.2% | — | 1,721 | 0 | 6 |
| — | — | — | — | — | — | — | 1981 | 1–2 | 33.3% | — | 1,709 | 0 | 6 |
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.
| Ada Bakker | Betty Ann Grubb | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1968 | — | — | — | — | 1 | 2 | 3 | 33.3% | 2 | 6 | 8 | 25.0% | — | — | — | — | 1968 | 9 | 2 | 11 | 81.8% | 10 | 3 | 13 | 76.9% | 2 | 3 | 5 | 40.0% | — | — | — | — |
| 1969 | — | — | — | — | 4 | 3 | 7 | 57.1% | 3 | 5 | 8 | 37.5% | 1 | 3 | 4 | 25.0% | 1969 | 10 | 3 | 13 | 76.9% | — | — | — | — | 14 | 9 | 23 | 60.9% | 2 | 2 | 4 | 50.0% |
| 1970 | 0 | 1 | 1 | 0.0% | 2 | 5 | 7 | 28.6% | 2 | 3 | 5 | 40.0% | — | — | — | — | 1970 | 6 | 3 | 9 | 66.7% | 5 | 4 | 9 | 55.6% | 5 | 6 | 11 | 45.5% | 1 | 1 | 2 | 50.0% |
| 1971 | — | — | — | — | 1 | 1 | 2 | 50.0% | 2 | 4 | 6 | 33.3% | — | — | — | — | 1971 | 2 | 3 | 5 | 40.0% | 2 | 3 | 5 | 40.0% | 1 | 2 | 3 | 33.3% | 0 | 3 | 3 | 0.0% |
| 1972 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1972 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 3 | 2 | 5 | 60.0% | — | — | — | — | — | — | — | — | 1 | 2 | 3 | 33.3% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 6 | 5 | 11 | 54.5% | 1 | 2 | 3 | 33.3% | — | — | — | — | 0 | 3 | 3 | 0.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1975 | 5 | 3 | 8 | 62.5% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1976 | 2 | 3 | 5 | 40.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1977 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1979 | 8 | 9 | 17 | 47.1% | 4 | 4 | 8 | 50.0% | 9 | 6 | 15 | 60.0% | 4 | 7 | 11 | 36.4% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | 0 | 5 | 5 | 0.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 0 | 1 | 1 | 0.0% | 8 | 12 | 20 | 40.0% | 9 | 19 | 28 | 32.1% | 1 | 3 | 4 | 25.0% | Career | 52 | 38 | 90 | 57.8% | 22 | 19 | 41 | 53.7% | 33 | 28 | 61 | 54.1% | 8 | 25 | 33 | 24.2% |
Advanced Statistics Comparison by Career Season
Rows are aligned in career order because complete birth data is unavailable. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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.
| Ada Bakker | Betty Ann Grubb | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule |
| 1968 | 1479 | 99.9 | — | — | — | — | — | +14 | +6 | 28.6% | -1.38 | 1–0 | — | -0.30 | 1968 | 1633 | 121.5 | — | — | — | — | +94 | +16 | -113 | 69.8% | +1.56 | 3–2 (60%) | — | +0.07 |
| 1969 | 1513 | 112.5 | — | — | — | — | -23 | +17 | -20 | 42.9% | +0.19 | 2–2 (50%) | — | +1.17 | 1969 | 1777 | 129.3 | — | — | — | — | +55 | — | -18 | 64.1% | +0.96 | 5–3 (63%) | — | +1.73 |
| 1970 | 1485 | 107.3 | — | — | — | — | — | +5 | +4 | 27.6% | -1.48 | 1–2 (33%) | — | -0.09 | 1970 | 1685 | 118.2 | — | — | — | — | +114 | -50 | +6 | 53.4% | +0.34 | 4–3 (57%) | 1–0 | +0.38 |
| 1971 | 1507 | 107.9 | — | — | — | — | — | — | -10 | 36.8% | -0.84 | 2–1 (67%) | 1–0 | +0.42 | 1971 | 1680 | 131.9 | — | — | — | — | +54 | -42 | +16 | 25.0% | -1.81 | 2–0 | 0–2 | -2.11 |
| 1972 | 1482 | 96.9 | — | — | — | — | — | — | — | 20.0% | -2.80 | 0–1 | — | +0.33 | 1972 | 1673 | 104.5 | — | — | — | — | — | — | — | 50.0% | 0.00 | — | — | -0.16 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 1700 | 124.2 | — | — | — | — | +39 | — | — | 47.1% | -0.35 | 1–0 | 0–1 | +0.38 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1676 | 118.4 | — | — | — | — | -14 | -33 | — | 47.2% | +0.08 | 1–3 (25%) | 0–5 (0%) | -0.33 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1975 | 1728 | 114.2 | — | — | — | — | +19 | — | — | 47.4% | -0.31 | 2–1 (67%) | 2–1 (67%) | +0.34 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1976 | 1684 | 105.1 | — | — | — | — | +18 | — | — | 33.3% | -0.58 | — | 0–2 | +0.77 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1977 | 1653 | 100.1 | — | — | — | — | — | — | — | 20.0% | -1.00 | 0–1 | 0–1 | +0.16 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1978 | 1660 | 112.4 | — | — | — | — | — | — | — | 75.0% | +2.63 | — | — | +0.35 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1979 | 1817 | 140.6 | — | — | — | — | -45 | -172 | -41 | 45.3% | -0.42 | 12–5 (71%) | 5–5 (50%) | -0.53 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 1722 | 127.1 | — | — | — | — | -73 | — | +67 | 33.3% | -1.07 | 2–5 (29%) | 1–2 (33%) | -1.20 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | 1709 | 110.6 | — | — | — | — | -33 | — | — | 33.3% | -0.50 | — | 0–1 | +0.08 |
| Career | 1538 | 108.8 | — | — | — | — | -23 | +12 | -6 | 34.5% | -0.81 | 6–6 (50%) | 1–0 | +2.94 | Career | 1825 | 133.9 | — | — | — | — | +19 | -51 | -20 | 51.1% | +0.14 | 32–23 (58%) | 9–20 (31%) | -0.03 |
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.
Betty Ann Grubb
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Laura Dupont | 2 | 4 | 6 | Mar 13, 1980 | H2H |
| Billie Jean King | 1 | 5 | 6 | Jan 10, 1980 | H2H |
| Sherry Acker | 4 | 1 | 5 | Sep 3, 1981 | H2H |
| Kerry Reid | 1 | 4 | 5 | Oct 26, 1979 | H2H |
| Esme Emmanuel | 3 | 2 | 5 | Feb 26, 1970 | H2H |