H2H data updated: 2026-09-13 00:00 UTC

Donna Ganz vs Mary Hamm H2H: 1-0

Donna Ganz holds a 1–0 lead over Mary Hamm in their WTA head-to-head. They have met 1 times in main draws. Most recently, Donna Ganz won the 1977 Tallahassee round of 16 7-6 6-2.

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Donna Ganz
USA 157 cm / 5'2"
H2H
1 – 0
1 main-draw meetings
Mary Hamm
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Donna Ganz 7-6 6-2 Mary Hamm Match data Apr 8, 1977* R16 Tallahassee WTA 250 —

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.

Career Comparison

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
Mary Hamm — — — 1,680 31 42 42.5% 0 0 0 0 0 0

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.

Donna Ganz Mary Hamm
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1970 0–1 0.0% — 1,483 0 0 1969 0–1 0.0% — 1,491 0 0
1971 1–1 50.0% — 1,493 0 0 1973 1–4 20.0% — 1,471 0 0
1972 1–3 25.0% — 1,471 0 0 1974 4–3 57.1% — 1,515 0 0
1973 3–4 42.9% — 1,504 0 0 1975 4–3 57.1% — 1,539 0 0
1974 12–16 42.9% — 1,561 0 0 1976 6–6 50.0% — 1,584 0 0
1975 17–12 58.6% — 1,720 0 1 1977 12–18 40.0% — 1,661 0 0
1976 0–4 0.0% — 1,680 0 1 1978 1–4 20.0% — 1,631 0 0
1977 6–5 54.5% — 1,669 0 1 1981 3–3 50.0% — 1,604 0 0
1978 1–4 20.0% — 1,646 0 1 — — — — — — —
1980 1–2 33.3% — 1,615 0 1 — — — — — — —

Surface Results by Career Season

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 Mary Hamm
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
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% — — — — — — — — 1969 — — — — 0 1 1 0.0% — — — — — — — —
1971 — — — — 1 1 2 50.0% — — — — — — — — 1973 0 2 2 0.0% — — — — 0 1 1 0.0% — — — —
1972 — — — — 1 2 3 33.3% — — — — — — — — 1974 — — — — 2 2 4 50.0% 2 1 3 66.7% — — — —
1973 — — — — 3 4 7 42.9% — — — — — — — — 1975 — — — — — — — — 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% 1976 3 3 6 50.0% 2 2 4 50.0% — — — — 1 1 2 50.0%
1975 0 1 1 0.0% 17 8 25 68.0% 0 1 1 0.0% 0 2 2 0.0% 1977 4 3 7 57.1% 4 6 10 40.0% 0 2 2 0.0% 3 5 8 37.5%
1976 0 1 1 0.0% — — — — — — — — 0 3 3 0.0% 1978 1 1 2 50.0% — — — — — — — — 0 3 3 0.0%
1977 — — — — 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — — — — — —
1978 1 1 2 50.0% 0 2 2 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
1980 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 8 9 17 47.1% 8 11 19 42.1% 3 5 8 37.5% 4 9 13 30.8%

Advanced Statistics Comparison by Career Season

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 Mary Hamm
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 1969 1492 97.2 — — — — — — — 0.0% -3.50 — — — -0.08
1971 1493 101.5 — — — — — — — 50.0% -1.00 — — — +0.23 1973 1472 97.7 — — — — — — — 30.8% -1.08 1–2 (33%) 0–1 — +0.01
1972 1471 99.7 — — — — — +32 — 33.3% -1.67 0–1 1–0 — +0.36 1974 1516 103.8 — — — — — -6 +43 50.0% -0.06 3–1 (75%) 2–0 — +0.80
1973 1504 117.4 — — — — — +21 — 47.1% +0.18 1–2 (33%) 0–1 — +0.33 1975 1540 117.4 — — — — — — — 62.5% +1.31 0–2 1–2 (33%) — +0.55
1974 1562 121.6 — — — — +2 -10 +10 41.9% -0.76 4–4 (50%) 2–5 (29%) 97.5 +0.22 1976 1585 112.8 — — — — +22 -30 — 44.8% -0.31 4–1 (80%) 2–0 — +1.02
1975 1721 140.7 — — — — -125 +40 — 59.3% +0.78 2–1 (67%) 0–3 (0%) 99.2 +0.04 1977 1661 131.0 — — — — +18 -54 — 42.0% -0.54 6–5 (55%) 3–2 (60%) 103.8 -0.77
1976 1681 92.8 — — — — -172 — — 11.1% -3.89 0–1 — — -0.30 1978 1631 115.5 — — — — +18 — — 27.3% -1.27 0–1 0–2 — +0.46
1977 1669 120.3 — — — — — +40 — 55.6% +0.15 2–3 (40%) 3–0 (100%) 100.5 +0.15 1981 1604 108.7 — — — — — — — 50.0% +0.57 1–1 1–2 (33%) — +0.05
1978 1647 112.1 — — — — — — — 25.0% -2.25 1–1 — — -0.60 — — — — — — — — — — — — — — — —
1980 1616 96.7 — — — — — — — 37.5% -0.62 1–1 0–1 — +0.22 — — — — — — — — — — — — — — — —
Career 1744 127.8 — — — — -70 +23 +10 46.2% -0.41 11–15 (42%) 6–10 (38%) 93.5 +1.01 Career 1680 123.5 — — — — +19 -38 +43 43.6% -0.31 15–13 (54%) 9–9 (50%) 103.1 +2.79

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.