H2H data updated: 2026-09-13 00:00 UTC
Karen Krantzcke holds a 2–1 lead over Kathleen Harter in their WTA head-to-head. Across 3 main-draw meetings, they are tied 1–1 on grass, while Karen Krantzcke leads 1–0 on hard courts. Most recently, Karen Krantzcke won the 1977 San Antonio round of 32 3-6 6-2 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.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Karen Krantzcke | 3-6 6-2 6-2 | Kathleen Harter | Match data | Mar 23, 1977* | R32 | San Antonio | WTA 250 | Hard |
| Karen Krantzcke | 4-6 7-5 6-3 | Kathleen Harter | Match data | Dec 30, 1976* | R32 | Sydney International | WTA 500 | Grass |
| Kathleen Harter | 11-9 6-3 | Karen Krantzcke | Match data | Aug 18, 1968* | SF | Baltimore | WTA 250 | 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kathleen Harter | — | — | — | 1,746 | 106 | 103 | 50.7% | 0 | 0 | 0 | 0 | 2 | 2 |
| Karen Krantzcke | — | — | — | 2,016 | 276 | 174 | 61.3% | 0 | 0 | 0 | 3 | 6 | 9 |
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 | Kathleen Harter | Karen Krantzcke | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 21 | 1968 | 40–22 | 64.5% | — | 1,690 | 0 | 0 | 1968 | 50–17 | 74.6% | — | 1,793 | 0 | 4 |
| 22 | 1969 | 1–1 | 50.0% | — | 1,685 | 0 | 0 | 1969 | 66–29 | 69.5% | — | 1,856 | 0 | 8 |
| 23 | 1970 | 23–20 | 53.5% | — | 1,678 | 0 | 0 | 1970 | 46–24 | 65.7% | — | 1,857 | 0 | 8 |
| 24 | 1971 | 9–2 | 81.8% | — | 1,732 | 0 | 2 | 1971 | 3–15 | 16.7% | — | 1,776 | 0 | 8 |
| 25 | — | — | — | — | — | — | — | 1972 | 35–27 | 56.5% | — | 1,948 | 0 | 8 |
| 26 | — | — | — | — | — | — | — | 1973 | 33–31 | 51.6% | — | 1,895 | 0 | 8 |
| 27 | 1974 | 4–5 | 44.4% | — | 1,729 | 0 | 2 | 1974 | 24–17 | 58.5% | — | 1,944 | 0 | 9 |
| 28 | 1975 | 6–8 | 42.9% | — | 1,664 | 0 | 2 | 1975 | 5–7 | 41.7% | — | 1,862 | 0 | 9 |
| 29 | 1976 | 9–16 | 36.0% | — | 1,615 | 0 | 2 | 1976 | 6–3 | 66.7% | — | 1,852 | 0 | 9 |
| 30 | 1977 | 12–20 | 37.5% | — | 1,644 | 0 | 2 | 1977 | 8–4 | 66.7% | — | 1,814 | 0 | 9 |
| 31 | 1978 | 2–9 | 18.2% | — | 1,591 | 0 | 2 | — | — | — | — | — | — | — |
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 | Kathleen Harter | Karen Krantzcke | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 21 | 1968 | 12 | 5 | 17 | 70.6% | 11 | 6 | 17 | 64.7% | 16 | 9 | 25 | 64.0% | 1 | 2 | 3 | 33.3% | 1968 | 3 | 1 | 4 | 75.0% | 10 | 3 | 13 | 76.9% | 37 | 13 | 50 | 74.0% | — | — | — | — |
| 22 | 1969 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | 3 | 2 | 5 | 60.0% | 26 | 13 | 39 | 66.7% | 37 | 13 | 50 | 74.0% | — | — | — | — |
| 23 | 1970 | 6 | 4 | 10 | 60.0% | 7 | 7 | 14 | 50.0% | 8 | 8 | 16 | 50.0% | — | — | — | — | 1970 | 3 | 2 | 5 | 60.0% | 21 | 10 | 31 | 67.7% | 22 | 12 | 34 | 64.7% | — | — | — | — |
| 24 | 1971 | 1 | 1 | 2 | 50.0% | — | — | — | — | 8 | 1 | 9 | 88.9% | — | — | — | — | 1971 | 0 | 3 | 3 | 0.0% | 1 | 4 | 5 | 20.0% | — | — | — | — | 2 | 8 | 10 | 20.0% |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | 5 | 4 | 9 | 55.6% | 8 | 7 | 15 | 53.3% | 18 | 8 | 26 | 69.2% | 4 | 8 | 12 | 33.3% |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 10 | 7 | 17 | 58.8% | 8 | 5 | 13 | 61.5% | 10 | 8 | 18 | 55.6% | 5 | 11 | 16 | 31.3% |
| 27 | 1974 | 2 | 2 | 4 | 50.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | 1974 | 4 | 3 | 7 | 57.1% | 4 | 3 | 7 | 57.1% | 12 | 4 | 16 | 75.0% | 4 | 7 | 11 | 36.4% |
| 28 | 1975 | — | — | — | — | 1 | 1 | 2 | 50.0% | 3 | 2 | 5 | 60.0% | 0 | 1 | 1 | 0.0% | 1975 | 1 | 2 | 3 | 33.3% | — | — | — | — | 3 | 3 | 6 | 50.0% | 1 | 2 | 3 | 33.3% |
| 29 | 1976 | 0 | 1 | 1 | 0.0% | 3 | 9 | 12 | 25.0% | 5 | 5 | 10 | 50.0% | 1 | 1 | 2 | 50.0% | 1976 | 3 | 2 | 5 | 60.0% | — | — | — | — | 3 | 1 | 4 | 75.0% | — | — | — | — |
| 30 | 1977 | 2 | 4 | 6 | 33.3% | 2 | 6 | 8 | 25.0% | 5 | 7 | 12 | 41.7% | 3 | 3 | 6 | 50.0% | 1977 | 2 | 1 | 3 | 66.7% | — | — | — | — | 3 | 2 | 5 | 60.0% | — | — | — | — |
| 31 | 1978 | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | 1 | 2 | 3 | 33.3% | 0 | 4 | 4 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 25 | 20 | 45 | 55.6% | 25 | 31 | 56 | 44.6% | 46 | 35 | 81 | 56.8% | 6 | 12 | 18 | 33.3% | — | 34 | 27 | 61 | 55.7% | 78 | 45 | 123 | 63.4% | 145 | 64 | 209 | 69.4% | 16 | 36 | 52 | 30.8% |
Seasons are aligned by the age each player spent most of that calendar year. 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.
| Age | Kathleen Harter | Karen Krantzcke | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 21 | 1968 | 1691 | 124.1 | — | — | — | — | +5 | -60 | +10 | 63.4% | +1.09 | 6–5 (55%) | — | — | 0.00 | 1968 | 1793 | 133.4 | — | — | — | — | -183 | -107 | +112 | 72.8% | +1.89 | 6–7 (46%) | — | — | +1.15 |
| 22 | 1969 | 1686 | 102.9 | — | — | — | — | — | — | — | 40.0% | -0.20 | 1–0 | — | — | +0.23 | 1969 | 1857 | 143.1 | — | — | — | — | -187 | -21 | +117 | 68.3% | +1.63 | 8–10 (44%) | — | — | -1.74 |
| 23 | 1970 | 1678 | 122.9 | — | — | — | — | +41 | -69 | +30 | 53.1% | +0.10 | 5–7 (42%) | 2–0 | — | +0.91 | 1970 | 1858 | 144.6 | — | — | — | — | -179 | +43 | +67 | 63.2% | +0.86 | 11–8 (58%) | — | — | -6.02 |
| 24 | 1971 | 1732 | 126.5 | — | — | — | — | — | — | +71 | 79.2% | +2.54 | 1–1 | — | — | +2.89 | 1971 | 1777 | 136.0 | — | — | — | — | -153 | +69 | — | 29.3% | -1.44 | 1–6 (14%) | 1–4 (20%) | 93.5 | -3.42 |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1972 | 1948 | 152.1 | — | — | — | — | -221 | -89 | +32 | 56.9% | +0.48 | 4–8 (33%) | 3–2 (60%) | 96.3 | -8.34 |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1973 | 1896 | 154.5 | — | — | — | — | -120 | +24 | +69 | 53.8% | +0.30 | 6–11 (35%) | 12–8 (60%) | 97.2 | -8.52 |
| 27 | 1974 | 1729 | 112.1 | — | — | — | — | -17 | — | — | 42.1% | -1.16 | 1–2 (33%) | 1–0 | — | -0.51 | 1974 | 1945 | 156.8 | — | — | — | — | -111 | +5 | +75 | 61.2% | +0.93 | 5–4 (56%) | 2–2 (50%) | 102.2 | -5.37 |
| 28 | 1975 | 1665 | 112.0 | — | — | — | — | — | — | +97 | 44.1% | -0.82 | 3–3 (50%) | 1–1 | — | +0.39 | 1975 | 1863 | 128.0 | — | — | — | — | -9 | — | +52 | 42.9% | -0.43 | 2–2 (50%) | 3–1 (75%) | 98.9 | -1.26 |
| 29 | 1976 | 1615 | 122.9 | — | — | — | — | +60 | -57 | +152 | 41.7% | -0.45 | 3–7 (30%) | 4–5 (44%) | 95.7 | +0.03 | 1976 | 1853 | 111.8 | — | — | — | — | -25 | — | +106 | 63.2% | +0.42 | 3–0 (100%) | 1–1 | — | +1.15 |
| 30 | 1977 | 1644 | 127.2 | — | — | — | — | +49 | -96 | +72 | 37.5% | -0.88 | 5–3 (63%) | 2–4 (33%) | 101.5 | +0.34 | 1977 | 1815 | 117.4 | — | — | — | — | +9 | — | +101 | 60.7% | +0.93 | 3–1 (75%) | 2–2 (50%) | 101.2 | +2.31 |
| 31 | 1978 | 1592 | 110.8 | — | — | — | — | +42 | — | +109 | 24.0% | -1.40 | 1–2 (33%) | 1–5 (17%) | 95.6 | -0.07 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1746 | 127.1 | — | — | — | — | +25 | -67 | +57 | 50.6% | +0.08 | 26–30 (46%) | 11–15 (42%) | 95.9 | +2.03 | — | 2017 | 149.8 | — | — | — | — | -135 | -12 | +87 | 61.2% | +0.91 | 49–57 (46%) | 24–20 (55%) | 96.5 | -6.82 |
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 |
|---|---|---|---|---|---|
| Judy Tegart | 0 | 5 | 5 | Oct 2, 1970 | H2H |
| Pam Teeguarden | 2 | 2 | 4 | Aug 12, 1977 | H2H |
| Valerie Ziegenfuss | 2 | 2 | 4 | Oct 6, 1976 | H2H |
| Peaches Bartkowicz | 1 | 3 | 4 | Apr 12, 1970 | H2H |
| Billie Jean King | 0 | 3 | 3 | Feb 23, 1978 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Rosie Casals | 2 | 16 | 18 | Oct 17, 1974 | H2H |
| Billie Jean King | 3 | 14 | 17 | Apr 26, 1974 | H2H |
| Margaret Court | 0 | 15 | 15 | Feb 14, 1975 | H2H |
| Kerry Reid | 4 | 9 | 13 | May 5, 1974 | H2H |
| Francoise Durr | 5 | 6 | 11 | May 4, 1974 | H2H |