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
Trudy Groenman holds a 1–0 lead over Ada Bakker in their WTA head-to-head. Across 1 main-draw meeting, Trudy Groenman leads 1–0 on clay. Most recently, Trudy Groenman won the 1969 Scheveningen quarterfinal 6-4 7-5.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
| Winner | Score | Loser | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Trudy Groenman | 6-4 7-5 | Ada Bakker | Match data | Aug 16, 1969* | QF | Scheveningen | WTA 250 | Clay |
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.
| 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 |
| Trudy Groenman | — | — | — | 1,725 | 41 | 32 | 56.2% | 0 | 0 | 0 | 0 | 1 | 1 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Ada Bakker | Trudy Groenman | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 20 | 1968 | 3–8 | 27.3% | — | 1,479 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1969 | 8–11 | 42.1% | — | 1,513 | 0 | 1 | — | — | — | — | — | — | — |
| 22 | 1970 | 4–10 | 28.6% | — | 1,485 | 0 | 1 | — | — | — | — | — | — | — |
| 23 | 1971 | 3–5 | 37.5% | — | 1,507 | 0 | 1 | — | — | — | — | — | — | — |
| 24 | 1972 | 0–2 | 0.0% | — | 1,481 | 0 | 1 | 1968 | 1–1 | 50.0% | — | 1,512 | 0 | 0 |
| 25 | — | — | — | — | — | — | — | 1969 | 4–2 | 66.7% | — | 1,572 | 0 | 0 |
| 26 | — | — | — | — | — | — | — | 1970 | 7–9 | 43.8% | — | 1,577 | 0 | 0 |
| 27 | — | — | — | — | — | — | — | 1971 | 21–13 | 61.8% | — | 1,674 | 0 | 1 |
| 28 | — | — | — | — | — | — | — | 1972 | 7–5 | 58.3% | — | 1,706 | 0 | 1 |
| 29 | — | — | — | — | — | — | — | 1973 | 1–2 | 33.3% | — | 1,697 | 0 | 1 |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Ada Bakker | Trudy Groenman | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 20 | 1968 | — | — | — | — | 1 | 2 | 3 | 33.3% | 2 | 6 | 8 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1969 | — | — | — | — | 4 | 3 | 7 | 57.1% | 3 | 5 | 8 | 37.5% | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1970 | 0 | 1 | 1 | 0.0% | 2 | 5 | 7 | 28.6% | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1971 | — | — | — | — | 1 | 1 | 2 | 50.0% | 2 | 4 | 6 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1972 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1968 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | — | — | — | — | 4 | 2 | 6 | 66.7% | — | — | — | — | — | — | — | — |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1970 | — | — | — | — | 6 | 5 | 11 | 54.5% | 1 | 4 | 5 | 20.0% | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | — | — | — | — | 12 | 7 | 19 | 63.2% | 8 | 6 | 14 | 57.1% | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | 3 | 1 | 4 | 75.0% | 2 | 2 | 4 | 50.0% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | — | — | — | — | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| Career | — | 0 | 1 | 1 | 0.0% | 8 | 12 | 20 | 40.0% | 9 | 19 | 28 | 32.1% | 1 | 3 | 4 | 25.0% | — | 3 | 1 | 4 | 75.0% | 26 | 18 | 44 | 59.1% | 11 | 13 | 24 | 45.8% | — | — | — | — |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Ada Bakker | Trudy Groenman | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 20 | 1968 | 1479 | 99.9 | — | — | — | — | — | +14 | +6 | 28.6% | -1.38 | 1–0 | — | -0.30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | 1969 | 1513 | 112.5 | — | — | — | — | -23 | +17 | -20 | 42.9% | +0.19 | 2–2 (50%) | — | +1.17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 1970 | 1485 | 107.3 | — | — | — | — | — | +5 | +4 | 27.6% | -1.48 | 1–2 (33%) | — | -0.09 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 23 | 1971 | 1507 | 107.9 | — | — | — | — | — | — | -10 | 36.8% | -0.84 | 2–1 (67%) | 1–0 | +0.42 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1972 | 1482 | 96.9 | — | — | — | — | — | — | — | 20.0% | -2.80 | 0–1 | — | +0.33 | 1968 | 1512 | 107.5 | — | — | — | — | — | — | — | 50.0% | +0.75 | — | — | -0.28 |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | 1573 | 112.4 | — | — | — | — | — | +24 | — | 57.1% | -0.29 | 2–0 | — | -0.35 |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1970 | 1577 | 120.6 | — | — | — | — | — | +55 | -59 | 42.9% | -0.11 | 2–1 (67%) | — | -0.32 |
| 27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | 1675 | 128.4 | — | — | — | — | — | +26 | -85 | 58.7% | +0.48 | 5–6 (45%) | 2–1 (67%) | +0.99 |
| 28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | 1707 | 122.0 | — | — | — | — | -116 | +2 | -91 | 53.8% | +0.38 | 2–2 (50%) | — | -0.55 |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 1698 | 109.8 | — | — | — | — | — | — | — | 37.5% | -0.75 | 1–1 | — | -0.21 |
| Career | — | 1538 | 108.8 | — | — | — | — | -23 | +12 | -6 | 34.5% | -0.81 | 6–6 (50%) | 1–0 | +2.94 | — | 1726 | 128.7 | — | — | — | — | -116 | +31 | -80 | 53.1% | +0.22 | 12–10 (55%) | 2–1 (67%) | -1.03 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| 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 |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Marijke Jansen | 0 | 4 | 4 | Jul 21, 1973 | H2H |
| Jill Cooper | 1 | 2 | 3 | Apr 3, 1971 | H2H |
| Corinne Molesworth | 0 | 3 | 3 | Mar 20, 1971 | H2H |
| Betty Stove | 1 | 1 | 2 | Jul 2, 1972 | H2H |
| Winnie Shaw | 0 | 2 | 2 | Jun 22, 1972 | H2H |