H2H data updated: 2026-09-11 00:00 UTC
Peaches Bartkowicz holds a 3–1 lead over Kathleen Harter in their WTA head-to-head. Across 4 main-draw meetings, they are tied 1–1 on hard courts, while Peaches Bartkowicz leads 1–0 on clay. Most recently, Peaches Bartkowicz won the 1970 Kingston final 6-0 5-7 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.
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Peaches Bartkowicz | 6-0 5-7 6-3 | Kathleen Harter | Match data | Apr 12, 1970* | F | Kingston | WTA 250 | Grass |
| Peaches Bartkowicz | 6-2 2-6 6-2 | Kathleen Harter | Match data | Apr 5, 1970* | QF | San Juan | WTA 250 | Hard |
| Peaches Bartkowicz | 6-3 6-3 | Kathleen Harter | Match data | Apr 20, 1968* | SF | Houston | WTA 250 | Clay |
| Kathleen Harter | 6-2 6-2 | Peaches Bartkowicz | Match data | Apr 6, 1968* | QF | San Juan | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kathleen Harter | — | — | — | 1,746 | 106 | 103 | 50.7% | 0 | 0 | 0 | 0 | 2 | 2 |
| Peaches Bartkowicz | — | — | — | 1,974 | 118 | 59 | 66.7% | 0 | 0 | 0 | 0 | 12 | 12 |
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 | Peaches Bartkowicz | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 19 | — | — | — | — | — | — | — | 1968 | 22–9 | 71.0% | — | 1,718 | 0 | 2 |
| 20 | — | — | — | — | — | — | — | 1969 | 48–13 | 78.7% | — | 1,950 | 0 | 8 |
| 21 | 1968 | 40–22 | 64.5% | — | 1,690 | 0 | 0 | 1970 | 39–17 | 69.6% | — | 1,921 | 0 | 12 |
| 22 | 1969 | 1–1 | 50.0% | — | 1,685 | 0 | 0 | 1971 | 7–14 | 33.3% | — | 1,863 | 0 | 12 |
| 23 | 1970 | 23–20 | 53.5% | — | 1,678 | 0 | 0 | — | — | — | — | — | — | — |
| 24 | 1971 | 9–2 | 81.8% | — | 1,732 | 0 | 2 | 1973 | 0–1 | 0.0% | — | 1,862 | 0 | 12 |
| 25 | — | — | — | — | — | — | — | 1974 | 2–5 | 28.6% | — | 1,792 | 0 | 12 |
| 27 | 1974 | 4–5 | 44.4% | — | 1,729 | 0 | 2 | — | — | — | — | — | — | — |
| 28 | 1975 | 6–8 | 42.9% | — | 1,664 | 0 | 2 | — | — | — | — | — | — | — |
| 29 | 1976 | 9–16 | 36.0% | — | 1,615 | 0 | 2 | — | — | — | — | — | — | — |
| 30 | 1977 | 12–20 | 37.5% | — | 1,644 | 0 | 2 | — | — | — | — | — | — | — |
| 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 | Peaches Bartkowicz | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | 0 | 1 | 1 | 0.0% | 12 | 3 | 15 | 80.0% | 10 | 5 | 15 | 66.7% | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | 3 | 3 | 6 | 50.0% | 36 | 7 | 43 | 83.7% | 5 | 2 | 7 | 71.4% | 1 | 1 | 2 | 50.0% |
| 21 | 1968 | 12 | 5 | 17 | 70.6% | 11 | 6 | 17 | 64.7% | 16 | 9 | 25 | 64.0% | 1 | 2 | 3 | 33.3% | 1970 | 13 | 3 | 16 | 81.3% | 9 | 4 | 13 | 69.2% | 11 | 5 | 16 | 68.8% | 3 | 4 | 7 | 42.9% |
| 22 | 1969 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1971 | 2 | 1 | 3 | 66.7% | 1 | 2 | 3 | 33.3% | 0 | 1 | 1 | 0.0% | 4 | 10 | 14 | 28.6% |
| 23 | 1970 | 6 | 4 | 10 | 60.0% | 7 | 7 | 14 | 50.0% | 8 | 8 | 16 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1971 | 1 | 1 | 2 | 50.0% | — | — | — | — | 8 | 1 | 9 | 88.9% | — | — | — | — | 1973 | — | — | — | — | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 2 | 4 | 6 | 33.3% |
| 27 | 1974 | 2 | 2 | 4 | 50.0% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 1975 | — | — | — | — | 1 | 1 | 2 | 50.0% | 3 | 2 | 5 | 60.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1976 | 0 | 1 | 1 | 0.0% | 3 | 9 | 12 | 25.0% | 5 | 5 | 10 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1977 | 2 | 4 | 6 | 33.3% | 2 | 6 | 8 | 25.0% | 5 | 7 | 12 | 41.7% | 3 | 3 | 6 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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% | — | 18 | 8 | 26 | 69.2% | 58 | 17 | 75 | 77.3% | 26 | 13 | 39 | 66.7% | 10 | 20 | 30 | 33.3% |
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 | Peaches Bartkowicz | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1968 | 1718 | 131.8 | — | — | — | — | — | -2 | -44 | 69.8% | +1.79 | 1–2 (33%) | — | — | -0.91 |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1969 | 1950 | 151.0 | — | — | — | — | -354 | +87 | -205 | 79.8% | +2.47 | 5–3 (63%) | — | — | -3.64 |
| 21 | 1968 | 1691 | 124.1 | — | — | — | — | +5 | -60 | +10 | 63.4% | +1.09 | 6–5 (55%) | — | — | 0.00 | 1970 | 1921 | 151.6 | — | — | — | — | -59 | +92 | -70 | 66.1% | +1.53 | 7–4 (64%) | 1–1 | — | -4.90 |
| 22 | 1969 | 1686 | 102.9 | — | — | — | — | — | — | — | 40.0% | -0.20 | 1–0 | — | — | +0.23 | 1971 | 1863 | 135.7 | — | — | — | — | -54 | — | — | 40.8% | -0.92 | 3–6 (33%) | 3–2 (60%) | 98.9 | -2.80 |
| 23 | 1970 | 1678 | 122.9 | — | — | — | — | +41 | -69 | +30 | 53.1% | +0.10 | 5–7 (42%) | 2–0 | — | +0.91 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24 | 1971 | 1732 | 126.5 | — | — | — | — | — | — | +71 | 79.2% | +2.54 | 1–1 | — | — | +2.89 | 1973 | 1862 | 112.0 | — | — | — | — | — | — | — | 0.0% | -4.50 | — | — | — | -0.54 |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | 1792 | 112.6 | — | — | — | — | -42 | — | — | 38.9% | -1.22 | 1–3 (25%) | 1–0 | — | -0.05 |
| 27 | 1974 | 1729 | 112.1 | — | — | — | — | -17 | — | — | 42.1% | -1.16 | 1–2 (33%) | 1–0 | — | -0.51 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 1975 | 1665 | 112.0 | — | — | — | — | — | — | +97 | 44.1% | -0.82 | 3–3 (50%) | 1–1 | — | +0.39 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 29 | 1976 | 1615 | 122.9 | — | — | — | — | +60 | -57 | +152 | 41.7% | -0.45 | 3–7 (30%) | 4–5 (44%) | 95.7 | +0.03 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 30 | 1977 | 1644 | 127.2 | — | — | — | — | +49 | -96 | +72 | 37.5% | -0.88 | 5–3 (63%) | 2–4 (33%) | 101.5 | +0.34 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | 1975 | 149.4 | — | — | — | — | -99 | +69 | -85 | 66.3% | +1.40 | 17–18 (49%) | 5–3 (63%) | 100.3 | -7.51 |
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 |
|---|---|---|---|---|---|
| Nancy Richey | 0 | 7 | 7 | Apr 4, 1971 | H2H |
| Francoise Durr | 2 | 4 | 6 | Aug 17, 1971 | H2H |
| Margaret Court | 1 | 4 | 5 | Mar 5, 1973 | H2H |
| Rosie Casals | 1 | 4 | 5 | Apr 4, 1971 | H2H |
| Valerie Ziegenfuss | 5 | 0 | 5 | Mar 28, 1971 | H2H |