H2H data updated: 2026-08-31 00:00 UTC

Ada Bakker vs Sandy Stap H2H: 0-1

Sandy Stap holds a 1–0 lead over Ada Bakker in their WTA head-to-head. Across 1 main-draw meeting, Sandy Stap leads 1–0 on grass. Most recently, Sandy Stap won the 1972 Wimbledon round of 64 6-0 5-7 6-1.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Ada Bakker
NED Age 78
H2H
0 – 1
1 main draw meetings
Sandy Stap
USA Age 70 Right-Handed

H2H Match Log

WinnerScoreLoserMatch DataDateRoundTournamentCategorySurface
Sandy Stap 6-0 5-7 6-1 Ada Bakker Match data Jun 30, 1972* R64 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
Sandy Stap — — — 1,635 25 33 43.1% 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.

Age Ada Bakker Sandy Stap
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 1971 0–2 0.0% — 1,482 0 0
16 — — — — — — — 1972 2–4 33.3% — 1,493 0 0
17 — — — — — — — 1973 2–6 25.0% — 1,446 0 0
18 — — — — — — — 1974 7–7 50.0% — 1,508 0 0
19 — — — — — — — 1975 10–7 58.8% — 1,615 0 1
20 1968 3–8 27.3% — 1,479 0 0 1976 0–1 0.0% — 1,594 0 1
21 1969 8–11 42.1% — 1,513 0 1 — — — — — — —
22 1970 4–10 28.6% — 1,485 0 1 1978 3–3 50.0% — 1,579 0 1
23 1971 3–5 37.5% — 1,507 0 1 1979 1–3 25.0% — 1,541 0 1
24 1972 0–2 0.0% — 1,481 0 1 — — — — — — —

Surface Results by Age

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 Sandy Stap
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
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 %
15 — — — — — — — — — — — — — — — — — 1971 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — —
16 — — — — — — — — — — — — — — — — — 1972 — — — — 1 1 2 50.0% 1 3 4 25.0% — — — —
17 — — — — — — — — — — — — — — — — — 1973 1 2 3 33.3% 1 3 4 25.0% 0 1 1 0.0% — — — —
18 — — — — — — — — — — — — — — — — — 1974 — — — — 4 4 8 50.0% 0 1 1 0.0% 0 1 1 0.0%
19 — — — — — — — — — — — — — — — — — 1975 — — — — 1 3 4 25.0% 5 0 5 100.0% — — — —
20 1968 — — — — 1 2 3 33.3% 2 6 8 25.0% — — — — 1976 — — — — 0 1 1 0.0% — — — — — — — —
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% — — — — 1978 — — — — 0 1 1 0.0% — — — — — — — —
23 1971 — — — — 1 1 2 50.0% 2 4 6 33.3% — — — — 1979 1 1 2 50.0% — — — — — — — — 0 2 2 0.0%
24 1972 — — — — 0 1 1 0.0% 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% — 2 3 5 40.0% 7 14 21 33.3% 6 6 12 50.0% 0 3 3 0.0%

Advanced Statistics Comparison by Age

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 Sandy Stap
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
15 — — — — — — — — — — — — — — — 1971 1482 103.5 — — — — — — — 20.0% -0.80 0–1 — -0.05
16 — — — — — — — — — — — — — — — 1972 1493 112.1 — — — — — — +17 35.7% -0.86 1–1 — +0.09
17 — — — — — — — — — — — — — — — 1973 1446 101.0 — — — — +92 +47 — 27.8% -0.89 1–1 0–1 +1.71
18 — — — — — — — — — — — — — — — 1974 1509 118.2 — — — — — +31 — 53.1% +0.56 1–3 (25%) 0–1 +0.78
19 — — — — — — — — — — — — — — — 1975 1615 126.2 — — — — — -83 -11 59.0% +0.36 2–3 (40%) 2–1 (67%) +0.58
20 1968 1479 99.9 — — — — — +14 +6 28.6% -1.38 1–0 — -0.30 1976 1595 99.7 — — — — — — — 33.3% -0.33 0–1 — +0.14
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 1978 1580 104.8 — — — — — — — 46.7% +0.20 2–1 (67%) 1–1 +0.18
23 1971 1507 107.9 — — — — — — -10 36.8% -0.84 2–1 (67%) 1–0 +0.42 1979 1541 95.0 — — — — -5 — — 33.3% -0.89 0–1 — +1.26
24 1972 1482 96.9 — — — — — — — 20.0% -2.80 0–1 — +0.33 — — — — — — — — — — — — — — —
Career — 1538 108.8 — — — — -23 +12 -6 34.5% -0.81 6–6 (50%) 1–0 +2.94 — 1636 118.0 — — — — +37 +7 +1 45.9% -0.05 7–12 (37%) 3–4 (43%) +8.09

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.