H2H data updated: 2026-07-19 14:15 UTC
Mona Guerrant vs Valerie Ziegenfuss H2H: 1-0
Mona Guerrant holds a 1–0 lead over Valerie Ziegenfuss in their WTA head-to-head. Across 1 main-draw meeting, Mona Guerrant leads 1–0 on clay. Most recently, Mona Guerrant won the 1972 Charlotte third round 6-3 6-1.
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H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Sep 15, 1972* | Charlotte | WTA 250 | R32 | Clay | Mona Guerrant | 6-3 6-1 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mona Guerrant | — | — | — | 1,939 | 123 | 117 | 51.2% | 0 | 0 | 0 | 0 | 3 | 3 |
| 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 | Mona Guerrant | 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 | 1–1 | 50.0% | — | 1,500 | 0 | 0 | 1969 | 28–24 | 53.8% | — | 1,715 | 0 | 1 |
| 21 | 1970 | 2–3 | 40.0% | — | 1,508 | 0 | 0 | 1970 | 40–28 | 58.8% | — | 1,776 | 0 | 2 |
| 22 | 1971 | 3–8 | 27.3% | — | 1,521 | 0 | 0 | 1971 | 23–29 | 44.2% | — | 1,796 | 0 | 3 |
| 23 | 1972 | 28–22 | 56.0% | — | 1,735 | 0 | 1 | 1972 | 26–24 | 52.0% | — | 1,829 | 0 | 3 |
| 24 | 1973 | 17–19 | 47.2% | — | 1,780 | 0 | 2 | 1973 | 33–29 | 53.2% | — | 1,759 | 0 | 3 |
| 25 | 1974 | 12–14 | 46.2% | — | 1,767 | 0 | 2 | 1974 | 12–14 | 46.2% | — | 1,786 | 0 | 3 |
| 26 | 1975 | 12–12 | 50.0% | — | 1,897 | 0 | 2 | 1975 | 16–16 | 50.0% | — | 1,822 | 0 | 3 |
| 27 | 1976 | 15–14 | 51.7% | — | 1,893 | 0 | 2 | 1976 | 12–20 | 37.5% | — | 1,742 | 0 | 3 |
| 28 | 1977 | 14–9 | 60.9% | — | 1,886 | 0 | 2 | 1977 | 2–12 | 14.3% | — | 1,674 | 0 | 3 |
| 29 | 1978 | 5–11 | 31.2% | — | 1,804 | 0 | 2 | 1978 | 3–11 | 21.4% | — | 1,651 | 0 | 3 |
| 30 | — | — | — | — | — | — | — | 1979 | 1–1 | 50.0% | — | 1,664 | 0 | 3 |
| 31 | 1980 | 14–4 | 77.8% | — | 1,809 | 0 | 3 | — | — | — | — | — | — | — |