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

Ada Bakker vs Carol Ann Kalogeropoulos H2H: 1-0

Ada Bakker holds a 1–0 lead over Carol Ann Kalogeropoulos in their WTA head-to-head. Across 1 main-draw meeting, Ada Bakker leads 1–0 on clay. Most recently, Ada Bakker won the 1970 Dutch Open round of 32 6-1 6-3.

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
1 – 0
1 main draw meetings
Carol Ann Kalogeropoulos
GRE Age 83

H2H Match Log

WinnerScoreLoserMatch DataDateRoundTournamentCategorySurface
Ada Bakker 6-1 6-3 Carol Ann Kalogeropoulos Match data Jul 30, 1970* R32 Dutch Open 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.

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
Carol Ann Kalogeropoulos — — — 1,500 7 44 13.7% 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.

Age Ada Bakker Carol Ann Kalogeropoulos
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
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 — — — — — — —
25 — — — — — — — 1968 3–13 18.8% — 1,382 0 0
26 — — — — — — — 1969 1–9 10.0% — 1,342 0 0
27 — — — — — — — 1970 1–9 10.0% — 1,292 0 0
28 — — — — — — — 1971 2–5 28.6% — 1,292 0 0
29 — — — — — — — 1972 0–7 0.0% — 1,254 0 0
30 — — — — — — — 1973 0–1 0.0% — 1,253 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 Carol Ann Kalogeropoulos
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 — — — — — — — — — — — — — — —
25 — — — — — — — — — — — — — — — 1968 1382 86.5 — — — — — -64 — 25.0% -1.86 1–5 (17%) — +0.42
26 — — — — — — — — — — — — — — — 1969 1343 89.9 — — — — — -67 — 17.6% -2.35 0–1 — +0.68
27 — — — — — — — — — — — — — — — 1970 1292 93.0 — — — — — -71 — 5.3% -3.68 0–1 — +0.37
28 — — — — — — — — — — — — — — — 1971 1292 96.9 — — — — — -92 — 23.1% -2.15 0–1 — +0.45
29 — — — — — — — — — — — — — — — 1972 1255 78.5 — — — — — — — 0.0% -4.36 — — +0.31
30 — — — — — — — — — — — — — — — 1973 1254 102.0 — — — — — — — 0.0% -4.00 — — -0.13
Career — 1538 108.8 — — — — -23 +12 -6 34.5% -0.81 6–6 (50%) 1–0 +2.94 — 1500 84.2 — — — — — -69 — 15.8% -2.71 1–8 (11%) — +4.57

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.