H2H data updated: 2026-07-19 14:15 UTC
Yvonne Vermaak vs Donna Ganz H2H: 1-0
Yvonne Vermaak holds a 1–0 lead over Donna Ganz in their WTA head-to-head. Across 1 main-draw meeting, Yvonne Vermaak leads 1–0 on grass. Most recently, Yvonne Vermaak won the 1978 Wimbledon first round 6-1 6-4.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
RSA
Age 69
Right-Handed
155 cm / 5'1"
H2H
1
–
0
1 main draw meetings
USA
157 cm / 5'2"
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jun 28, 1978* | Wimbledon | Grand Slam | R128 | Grass | Yvonne Vermaak | 6-1 6-4 | Donna Ganz | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yvonne Vermaak | #558 | #38 | 10 | 1,891 | 239 | 249 | 49.0% | 0 | 0 | 0 | 0 | 5 | 5 |
| Donna Ganz | — | — | — | 1,743 | 42 | 52 | 44.7% | 0 | 0 | 0 | 0 | 1 | 1 |
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.
| Yvonne Vermaak | Donna Ganz | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1973 | 0–2 | 0.0% | — | 1,495 | 0 | 0 | 1970 | 0–1 | 0.0% | — | 1,483 | 0 | 0 |
| 1974 | 1–2 | 33.3% | — | 1,489 | 0 | 0 | 1971 | 1–1 | 50.0% | — | 1,493 | 0 | 0 |
| 1975 | 15–12 | 55.6% | — | 1,599 | 0 | 0 | 1972 | 1–3 | 25.0% | — | 1,471 | 0 | 0 |
| 1976 | 8–10 | 44.4% | — | 1,607 | 0 | 1 | 1973 | 3–4 | 42.9% | — | 1,503 | 0 | 0 |
| 1977 | 20–14 | 58.8% | — | 1,766 | 0 | 2 | 1974 | 12–16 | 42.9% | — | 1,562 | 0 | 0 |
| 1978 | 29–23 | 55.8% | — | 1,797 | 0 | 2 | 1975 | 17–12 | 58.6% | — | 1,721 | 0 | 1 |
| 1979 | 15–23 | 39.5% | — | 1,781 | 0 | 2 | 1976 | 0–4 | 0.0% | — | 1,680 | 0 | 1 |
| 1980 | 19–18 | 51.4% | — | 1,740 | 0 | 2 | 1977 | 6–5 | 54.5% | — | 1,668 | 0 | 1 |
| 1981 | 19–28 | 40.4% | — | 1,721 | 0 | 2 | 1978 | 1–4 | 20.0% | — | 1,647 | 0 | 1 |
| 1982 | 36–27 | 57.1% | — | 1,819 | 0 | 2 | 1980 | 1–2 | 33.3% | — | 1,615 | 0 | 1 |
| 1983 | 33–26 | 55.9% | — | 1,754 | 0 | 4 | — | — | — | — | — | — | — |
| 1984 | 29–28 | 50.9% | #41 | 1,801 | 0 | 5 | — | — | — | — | — | — | — |
| 1985 | 8–21 | 27.6% | #41 | 1,605 | 0 | 5 | — | — | — | — | — | — | — |
| 1986 | 6–11 | 35.3% | #104 | 1,565 | 0 | 5 | — | — | — | — | — | — | — |
| 1987 | 1–3 | 25.0% | #201 | 1,558 | 0 | 5 | — | — | — | — | — | — | — |
| 1988 | 0–1 | 0.0% | #287 | 1,542 | 0 | 5 | — | — | — | — | — | — | — |