H2H data updated: 2026-07-18 17:48 UTC
Kathleen Harter vs Valerie Ziegenfuss H2H: 2-2
Kathleen Harter and Valerie Ziegenfuss are tied 2–2 in their WTA head-to-head. Across 4 main-draw meetings, they are tied 1–1 on clay, while they are tied 1–1 on hard courts. Most recently, Valerie Ziegenfuss won the 1976 Phoenix second round 3-6 6-2 6-2.
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H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Oct 6, 1976* | Phoenix | WTA 250 | R64 | Hard | Valerie Ziegenfuss | 3-6 6-2 6-2 | Kathleen Harter | Match data |
| Mar 28, 1970* | Jacksonville | WTA 250 | SF | Clay | Valerie Ziegenfuss | 7-5 6-2 | Kathleen Harter | Match data |
| Jul 20, 1968* | Milwaukee | WTA 250 | QF | Clay | Kathleen Harter | 6-3 7-5 | Valerie Ziegenfuss | Match data |
| Apr 6, 1968* | San Juan | WTA 250 | SF | Hard | Kathleen Harter | 6-4 7-5 | Valerie Ziegenfuss | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kathleen Harter | — | — | — | 1,748 | 106 | 103 | 50.7% | 0 | 0 | 0 | 0 | 2 | 2 |
| Valerie Ziegenfuss | — | — | — | 1,952 | 231 | 232 | 49.9% | 0 | 0 | 0 | 0 | 3 | 3 |
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 | Kathleen Harter | Valerie Ziegenfuss | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 19 | — | — | — | — | — | — | — | 1968 | 35–24 | 59.3% | — | 1,586 | 0 | 0 |
| 20 | — | — | — | — | — | — | — | 1969 | 28–24 | 53.8% | — | 1,715 | 0 | 1 |
| 21 | 1968 | 40–22 | 64.5% | — | 1,692 | 0 | 0 | 1970 | 40–28 | 58.8% | — | 1,776 | 0 | 2 |
| 22 | 1969 | 1–1 | 50.0% | — | 1,687 | 0 | 0 | 1971 | 23–29 | 44.2% | — | 1,796 | 0 | 3 |
| 23 | 1970 | 23–20 | 53.5% | — | 1,679 | 0 | 0 | 1972 | 26–24 | 52.0% | — | 1,829 | 0 | 3 |
| 24 | 1971 | 9–2 | 81.8% | — | 1,734 | 0 | 2 | 1973 | 33–29 | 53.2% | — | 1,759 | 0 | 3 |
| 25 | — | — | — | — | — | — | — | 1974 | 12–14 | 46.2% | — | 1,786 | 0 | 3 |
| 26 | — | — | — | — | — | — | — | 1975 | 16–16 | 50.0% | — | 1,822 | 0 | 3 |
| 27 | 1974 | 4–5 | 44.4% | — | 1,731 | 0 | 2 | 1976 | 12–20 | 37.5% | — | 1,742 | 0 | 3 |
| 28 | 1975 | 6–8 | 42.9% | — | 1,665 | 0 | 2 | 1977 | 2–12 | 14.3% | — | 1,674 | 0 | 3 |
| 29 | 1976 | 9–16 | 36.0% | — | 1,614 | 0 | 2 | 1978 | 3–11 | 21.4% | — | 1,651 | 0 | 3 |
| 30 | 1977 | 12–20 | 37.5% | — | 1,644 | 0 | 2 | 1979 | 1–1 | 50.0% | — | 1,664 | 0 | 3 |
| 31 | 1978 | 2–9 | 18.2% | — | 1,592 | 0 | 2 | — | — | — | — | — | — | — |