H2H data updated: 2026-09-12 00:00 UTC
Nicky Kruger holds a 1–0 lead over Carol Ann Kalogeropoulos in their WTA head-to-head. Across 1 main-draw meeting, Nicky Kruger leads 1–0 on hard courts. Most recently, Nicky Kruger won the 1972 Port Elizabeth 1 round of 64 6-0 6-1.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Nicky Kruger | 6-0 6-1 | Carol Ann Kalogeropoulos | Match data | Dec 29, 1971* | R64 | Port Elizabeth 1 | 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Carol Ann Kalogeropoulos | — | — | — | 1,500 | 7 | 44 | 13.7% | 0 | 0 | 0 | 0 | 0 | 0 |
| Nicky Kruger | — | — | — | 1,529 | 8 | 13 | 38.1% | 0 | 0 | 0 | 0 | 0 | 0 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Carol Ann Kalogeropoulos | Nicky Kruger | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 3–13 | 18.8% | — | 1,382 | 0 | 0 | 1971 | 1–1 | 50.0% | — | 1,506 | 0 | 0 |
| 1969 | 1–9 | 10.0% | — | 1,342 | 0 | 0 | 1972 | 3–4 | 42.9% | — | 1,518 | 0 | 0 |
| 1970 | 1–9 | 10.0% | — | 1,292 | 0 | 0 | 1973 | 0–3 | 0.0% | — | 1,479 | 0 | 0 |
| 1971 | 2–5 | 28.6% | — | 1,292 | 0 | 0 | 1974 | 3–3 | 50.0% | — | 1,516 | 0 | 0 |
| 1972 | 0–7 | 0.0% | — | 1,254 | 0 | 0 | 1975 | 1–1 | 50.0% | — | 1,526 | 0 | 0 |
| 1973 | 0–1 | 0.0% | — | 1,253 | 0 | 0 | 1976 | 0–1 | 0.0% | — | 1,522 | 0 | 0 |
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.
| Carol Ann Kalogeropoulos | Nicky Kruger | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | ||||||||||||||||||
| 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 | — | — | — | — | 3 | 13 | 16 | 18.8% | — | — | — | — | 1971 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 1969 | — | — | — | — | 1 | 8 | 9 | 11.1% | 0 | 1 | 1 | 0.0% | 1972 | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — |
| 1970 | — | — | — | — | 0 | 7 | 7 | 0.0% | 1 | 2 | 3 | 33.3% | 1973 | 0 | 3 | 3 | 0.0% | — | — | — | — | — | — | — | — |
| 1971 | 1 | 1 | 2 | 50.0% | 0 | 3 | 3 | 0.0% | 1 | 1 | 2 | 50.0% | 1974 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — |
| 1972 | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% | 0 | 2 | 2 | 0.0% | 1975 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 1973 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 1976 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| Career | 1 | 3 | 4 | 25.0% | 4 | 34 | 38 | 10.5% | 2 | 6 | 8 | 25.0% | Career | 7 | 12 | 19 | 36.8% | — | — | — | — | — | — | — | — |
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.
| Carol Ann Kalogeropoulos | Nicky Kruger | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1968 | 1382 | 86.5 | — | — | — | — | — | -64 | — | 25.0% | -1.86 | 1–5 (17%) | — | — | +0.42 | 1971 | 1507 | 101.6 | — | — | — | — | — | — | — | 50.0% | +0.50 | — | — | — | +0.10 |
| 1969 | 1343 | 89.9 | — | — | — | — | — | -67 | — | 17.6% | -2.35 | 0–1 | — | — | +0.69 | 1972 | 1518 | 116.5 | — | — | — | — | +50 | — | — | 46.7% | +0.47 | 0–1 | — | — | +0.47 |
| 1970 | 1292 | 93.0 | — | — | — | — | — | -71 | — | 5.3% | -3.68 | 0–1 | — | — | +0.42 | 1973 | 1479 | 94.6 | — | — | — | — | +38 | — | — | 14.3% | -2.71 | 0–1 | — | — | +0.68 |
| 1971 | 1292 | 96.9 | — | — | — | — | — | -92 | — | 23.1% | -2.15 | 0–1 | — | — | +0.46 | 1974 | 1516 | 107.9 | — | — | — | — | +20 | — | — | 50.0% | -0.14 | 1–1 | — | — | +0.17 |
| 1972 | 1255 | 78.5 | — | — | — | — | — | — | — | 0.0% | -4.36 | — | — | — | +0.32 | 1975 | 1526 | 102.8 | — | — | — | — | — | — | — | 40.0% | -0.40 | 1–0 | 0–1 | — | +0.24 |
| 1973 | 1254 | 102.0 | — | — | — | — | — | — | — | 0.0% | -4.00 | — | — | — | -0.12 | 1976 | 1523 | 99.4 | — | — | — | — | — | — | — | 0.0% | -2.50 | — | — | — | -0.16 |
| Career | 1500 | 84.2 | — | — | — | — | — | -69 | — | 15.8% | -2.71 | 1–8 (11%) | — | — | +4.76 | Career | 1529 | 109.4 | — | — | — | — | +39 | — | — | 40.4% | -0.40 | 2–3 (40%) | 0–1 | — | +7.14 |
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 |
|---|---|---|---|---|---|
| Fiorella Bonicelli | 1 | 2 | 3 | Jun 23, 1972 | H2H |
| Patti Hogan | 0 | 2 | 2 | May 9, 1973 | H2H |
| Maria Teresa Nasuelli | 0 | 2 | 2 | Sep 5, 1970 | H2H |
| Esme Emmanuel | 1 | 1 | 2 | Jun 19, 1970 | H2H |
| Alessandra Gobbo | 0 | 2 | 2 | Aug 26, 1969 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Linky Boshoff | 0 | 3 | 3 | Jan 6, 1974 | H2H |
| Greer Stevens | 0 | 1 | 1 | Nov 25, 1976 | H2H |
| Dianne Fromholtz | 0 | 1 | 1 | Nov 27, 1975 | H2H |
| Helen Liebenberg | 1 | 0 | 1 | Nov 26, 1975 | H2H |
| Ilana Kloss | 0 | 1 | 1 | Nov 22, 1974 | H2H |