Donna Ganz
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Chris Evert | 0 | 4 | 4 | Sep 1, 1978 | H2H |
| Helen Gourlay | 1 | 3 | 4 | Apr 9, 1977 | H2H |
| Mariana Simionescu | 2 | 2 | 4 | Jun 7, 1975 | H2H |
| Betty Stove | 0 | 3 | 3 | Jan 29, 1976 | H2H |
| Marcie Louie | 0 | 3 | 3 | Jan 21, 1976 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Kathy May holds a 2–0 lead over Donna Ganz in their WTA head-to-head. Across 2 main-draw meetings, Kathy May leads 2–0 on clay. Most recently, Kathy May won the 1978 Roland Garros round of 64 6-1 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 |
|---|---|---|---|---|---|---|---|---|
| Kathy May | 6-1 6-2 | Donna Ganz | Match data | Jun 1, 1978* | R64 | Roland Garros | Grand Slam | Clay |
| Kathy May | 6-2 6-2 | Donna Ganz | Match data | Sep 2, 1975* | R32 | US Open | Grand Slam | Clay |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Donna Ganz | — | — | — | 1,744 | 42 | 52 | 44.7% | 0 | 0 | 0 | 0 | 1 | 1 |
| Kathy May | — | — | — | 1,908 | 111 | 89 | 55.5% | 0 | 0 | 0 | 0 | 6 | 6 |
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Donna Ganz | Kathy May | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1970 | 0–1 | 0.0% | — | 1,483 | 0 | 0 | 1971 | 0–1 | 0.0% | — | 1,497 | 0 | 0 |
| 1971 | 1–1 | 50.0% | — | 1,493 | 0 | 0 | 1972 | 4–2 | 66.7% | — | 1,536 | 0 | 0 |
| 1972 | 1–3 | 25.0% | — | 1,471 | 0 | 0 | 1973 | 6–1 | 85.7% | — | 1,626 | 0 | 1 |
| 1973 | 3–4 | 42.9% | — | 1,504 | 0 | 0 | 1974 | 16–5 | 76.2% | — | 1,713 | 0 | 4 |
| 1974 | 12–16 | 42.9% | — | 1,561 | 0 | 0 | 1975 | 14–13 | 51.9% | — | 1,748 | 0 | 5 |
| 1975 | 17–12 | 58.6% | — | 1,720 | 0 | 1 | 1976 | 15–13 | 53.6% | — | 1,812 | 0 | 6 |
| 1976 | 0–4 | 0.0% | — | 1,680 | 0 | 1 | 1977 | 14–16 | 46.7% | — | 1,802 | 0 | 6 |
| 1977 | 6–5 | 54.5% | — | 1,669 | 0 | 1 | 1978 | 21–16 | 56.8% | — | 1,829 | 0 | 6 |
| 1978 | 1–4 | 20.0% | — | 1,646 | 0 | 1 | 1979 | 15–12 | 55.6% | — | 1,829 | 0 | 6 |
| 1980 | 1–2 | 33.3% | — | 1,615 | 0 | 1 | 1980 | 4–8 | 33.3% | — | 1,731 | 0 | 6 |
| — | — | — | — | — | — | — | 1981 | 1–1 | 50.0% | — | 1,713 | 0 | 6 |
| — | — | — | — | — | — | — | 1990 | 1–1 | 50.0% | — | 1,705 | 0 | 6 |
Rows are aligned in career order because complete birth data is unavailable. 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.
| Donna Ganz | Kathy May | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | ||
| 1970 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1971 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1971 | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | 1972 | 4 | 2 | 6 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — |
| 1972 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | 1973 | 5 | 0 | 5 | 100.0% | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 1973 | — | — | — | — | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | 1974 | 7 | 0 | 7 | 100.0% | 0 | 1 | 1 | 0.0% | 8 | 3 | 11 | 72.7% | 1 | 1 | 2 | 50.0% |
| 1974 | 0 | 2 | 2 | 0.0% | 7 | 9 | 16 | 43.8% | 2 | 2 | 4 | 50.0% | 3 | 3 | 6 | 50.0% | 1975 | 0 | 1 | 1 | 0.0% | 4 | 7 | 11 | 36.4% | 3 | 2 | 5 | 60.0% | 0 | 1 | 1 | 0.0% |
| 1975 | 0 | 1 | 1 | 0.0% | 17 | 8 | 25 | 68.0% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 1976 | 1 | 1 | 2 | 50.0% | 11 | 6 | 17 | 64.7% | 0 | 2 | 2 | 0.0% | 3 | 4 | 7 | 42.9% |
| 1976 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 0 | 3 | 3 | 0.0% | 1977 | 1 | 2 | 3 | 33.3% | 7 | 7 | 14 | 50.0% | 3 | 3 | 6 | 50.0% | 3 | 4 | 7 | 42.9% |
| 1977 | — | — | — | — | 1 | 3 | 4 | 25.0% | — | — | — | — | — | — | — | — | 1978 | 5 | 5 | 10 | 50.0% | 6 | 5 | 11 | 54.5% | 2 | 1 | 3 | 66.7% | 8 | 5 | 13 | 61.5% |
| 1978 | 1 | 1 | 2 | 50.0% | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 1979 | 6 | 4 | 10 | 60.0% | 1 | 1 | 2 | 50.0% | 2 | 3 | 5 | 40.0% | 6 | 4 | 10 | 60.0% |
| 1980 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 1 | 2 | 3 | 33.3% | — | — | — | — | 1 | 2 | 3 | 33.3% | 0 | 3 | 3 | 0.0% |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1990 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | 2 | 6 | 8 | 25.0% | 30 | 30 | 60 | 50.0% | 2 | 4 | 6 | 33.3% | 3 | 8 | 11 | 27.3% | Career | 31 | 19 | 50 | 62.0% | 29 | 27 | 56 | 51.8% | 20 | 17 | 37 | 54.1% | 21 | 22 | 43 | 48.8% |
Rows are aligned in career order because complete birth data is unavailable. 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.
| Donna Ganz | Kathy May | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1970 | 1483 | 97.1 | — | — | — | — | — | — | — | 33.3% | -2.33 | 0–1 | — | — | +0.30 | 1971 | 1497 | 102.9 | — | — | — | — | — | — | — | 33.3% | -1.00 | 0–1 | — | — | -0.25 |
| 1971 | 1493 | 101.5 | — | — | — | — | — | — | — | 50.0% | -1.00 | — | — | — | +0.23 | 1972 | 1537 | 105.3 | — | — | — | — | +66 | — | — | 57.1% | +0.71 | 2–0 | — | — | +1.22 |
| 1972 | 1471 | 99.7 | — | — | — | — | — | +32 | — | 33.3% | -1.67 | 0–1 | 1–0 | — | +0.36 | 1973 | 1626 | 119.7 | — | — | — | — | +97 | — | — | 76.5% | +2.24 | 2–1 (67%) | 1–1 | — | +1.52 |
| 1973 | 1504 | 117.4 | — | — | — | — | — | +21 | — | 47.1% | +0.18 | 1–2 (33%) | 0–1 | — | +0.33 | 1974 | 1713 | 120.9 | — | — | — | — | +112 | — | -31 | 70.8% | +1.44 | 4–2 (67%) | 2–1 (67%) | 103.0 | +4.53 |
| 1974 | 1562 | 121.6 | — | — | — | — | +2 | -10 | +10 | 41.9% | -0.76 | 4–4 (50%) | 2–5 (29%) | 97.5 | +0.22 | 1975 | 1749 | 141.0 | — | — | — | — | — | -194 | -46 | 53.3% | +0.27 | 2–4 (33%) | 4–3 (57%) | 98.8 | -2.15 |
| 1975 | 1721 | 140.7 | — | — | — | — | -125 | +40 | — | 59.3% | +0.78 | 2–1 (67%) | 0–3 (0%) | 99.2 | +0.04 | 1976 | 1812 | 121.0 | — | — | — | — | -28 | -89 | — | 48.4% | -0.44 | 8–2 (80%) | 5–0 (100%) | 111.1 | -1.24 |
| 1976 | 1681 | 92.8 | — | — | — | — | -172 | — | — | 11.1% | -3.89 | 0–1 | — | — | -0.30 | 1977 | 1803 | 147.7 | — | — | — | — | +22 | -55 | -100 | 54.0% | -0.14 | 1–6 (14%) | 5–1 (83%) | 97.8 | -3.29 |
| 1977 | 1669 | 120.3 | — | — | — | — | — | +40 | — | 55.6% | +0.15 | 2–3 (40%) | 3–0 (100%) | 100.5 | +0.15 | 1978 | 1830 | 146.4 | — | — | — | — | +43 | -105 | -94 | 58.5% | +0.80 | 4–6 (40%) | 2–4 (33%) | 97.7 | -1.49 |
| 1978 | 1647 | 112.1 | — | — | — | — | — | — | — | 25.0% | -2.25 | 1–1 | — | — | -0.60 | 1979 | 1830 | 136.1 | — | — | — | — | +67 | — | -99 | 50.0% | -0.12 | 6–2 (75%) | 3–1 (75%) | 104.8 | +0.55 |
| 1980 | 1616 | 96.7 | — | — | — | — | — | — | — | 37.5% | -0.62 | 1–1 | 0–1 | — | +0.22 | 1980 | 1731 | 114.5 | — | — | — | — | +40 | — | -26 | 39.3% | -0.71 | 1–3 (25%) | 1–0 | — | -0.13 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1981 | 1713 | 106.4 | — | — | — | — | — | — | — | 60.0% | +2.00 | 0–1 | 0–1 | — | +0.05 |
| — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1990 | 1705 | 99.6 | — | — | — | — | — | — | — | 40.0% | -0.40 | 1–0 | 0–1 | — | +0.11 |
| Career | 1744 | 127.8 | — | — | — | — | -70 | +23 | +10 | 46.2% | -0.41 | 11–15 (42%) | 6–10 (38%) | 93.5 | +1.01 | Career | 1909 | 141.8 | — | — | — | — | +50 | -105 | -61 | 55.0% | +0.31 | 31–28 (53%) | 23–13 (64%) | 107.6 | -0.29 |
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 |
|---|---|---|---|---|---|
| Chris Evert | 0 | 4 | 4 | Sep 1, 1978 | H2H |
| Helen Gourlay | 1 | 3 | 4 | Apr 9, 1977 | H2H |
| Mariana Simionescu | 2 | 2 | 4 | Jun 7, 1975 | H2H |
| Betty Stove | 0 | 3 | 3 | Jan 29, 1976 | H2H |
| Marcie Louie | 0 | 3 | 3 | Jan 21, 1976 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Renata Tomanova | 3 | 2 | 5 | Jun 25, 1980 | H2H |
| Laura Dupont | 3 | 2 | 5 | Jan 10, 1980 | H2H |
| Sue Barker | 0 | 5 | 5 | Mar 10, 1979 | H2H |
| Martina Navratilova | 1 | 4 | 5 | Jan 13, 1979 | H2H |
| Virginia Wade | 1 | 4 | 5 | Sep 15, 1978 | H2H |