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

Rowena Sanders vs Mary Hamm H2H: 1-0

Rowena Sanders holds a 1–0 lead over Mary Hamm in their WTA head-to-head. They have met 1 times in main draws. Most recently, Rowena Sanders won the 1975 Wilkes Barre quarterfinal 6-1 7-6.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Rowena Sanders
RSA Age 73
H2H
1 – 0
1 main-draw meetings
Mary Hamm
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Rowena Sanders 6-1 7-6 Mary Hamm Match data Sep 17, 1975* QF Wilkes Barre 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
Rowena Sanders — — — 1,607 23 41 35.9% 0 0 0 0 0 0
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.

Rowena Sanders Mary Hamm
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 0–1 0.0% — 1,487 0 0 1969 0–1 0.0% — 1,491 0 0
1970 0–1 0.0% — 1,481 0 0 1973 1–4 20.0% — 1,471 0 0
1971 2–4 33.3% — 1,481 0 0 1974 4–3 57.1% — 1,515 0 0
1972 0–2 0.0% — 1,468 0 0 1975 4–3 57.1% — 1,539 0 0
1973 0–2 0.0% — 1,454 0 0 1976 6–6 50.0% — 1,584 0 0
1974 4–9 30.8% — 1,446 0 0 1977 12–18 40.0% — 1,661 0 0
1975 17–14 54.8% — 1,595 0 0 1978 1–4 20.0% — 1,631 0 0
1976 0–7 0.0% — 1,514 0 0 1981 3–3 50.0% — 1,604 0 0
1977 0–1 0.0% — 1,495 0 0 — — — — — — —

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.

Rowena Sanders 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 %
1968 — — — — — — — — 0 1 1 0.0% — — — — 1969 — — — — 0 1 1 0.0% — — — — — — — —
1970 0 1 1 0.0% — — — — — — — — — — — — 1973 0 2 2 0.0% — — — — 0 1 1 0.0% — — — —
1971 2 4 6 33.3% — — — — — — — — — — — — 1974 — — — — 2 2 4 50.0% 2 1 3 66.7% — — — —
1972 0 2 2 0.0% — — — — — — — — — — — — 1975 — — — — — — — — 1 1 2 50.0% — — — —
1973 0 2 2 0.0% — — — — — — — — — — — — 1976 3 3 6 50.0% 2 2 4 50.0% — — — — 1 1 2 50.0%
1974 0 2 2 0.0% 0 2 2 0.0% 4 5 9 44.4% — — — — 1977 4 3 7 57.1% 4 6 10 40.0% 0 2 2 0.0% 3 5 8 37.5%
1975 2 2 4 50.0% 6 3 9 66.7% 7 5 12 58.3% — — — — 1978 1 1 2 50.0% — — — — — — — — 0 3 3 0.0%
1976 0 1 1 0.0% 0 3 3 0.0% 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — —
1977 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 4 15 19 21.1% 6 8 14 42.9% 11 14 25 44.0% — — — — 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.

Rowena Sanders 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
1968 1488 95.4 — — — — — — — 0.0% -4.50 — — — -0.04 1969 1492 97.2 — — — — — — — 0.0% -3.50 — — — -0.08
1970 1481 96.3 — — — — — — — 0.0% -4.00 — — — -0.09 1973 1472 97.7 — — — — — — — 30.8% -1.08 1–2 (33%) 0–1 — +0.01
1971 1481 98.2 — — — — +43 — — 33.3% -1.75 — 1–1 — +0.47 1974 1516 103.8 — — — — — -6 +43 50.0% -0.06 3–1 (75%) 2–0 — +0.80
1972 1468 103.3 — — — — — — — 20.0% -1.80 0–1 — — -0.03 1975 1540 117.4 — — — — — — — 62.5% +1.31 0–2 1–2 (33%) — +0.55
1973 1455 92.5 — — — — — — — 0.0% -4.50 — — — +0.13 1976 1585 112.8 — — — — +22 -30 — 44.8% -0.31 4–1 (80%) 2–0 — +1.02
1974 1447 96.9 — — — — — — +65 36.7% -0.97 1–3 (25%) 0–1 — +1.23 1977 1661 131.0 — — — — +18 -54 — 42.0% -0.54 6–5 (55%) 3–2 (60%) 103.8 -0.77
1975 1596 121.5 — — — — -46 -23 +5 54.3% +0.60 4–4 (50%) 1–2 (33%) 100.2 +1.73 1978 1631 115.5 — — — — +18 — — 27.3% -1.27 0–1 0–2 — +0.46
1976 1515 104.6 — — — — — +16 +48 12.5% -1.88 0–2 — — +0.36 1981 1604 108.7 — — — — — — — 50.0% +0.57 1–1 1–2 (33%) — +0.05
1977 1495 98.1 — — — — — — — 33.3% -0.67 0–1 — — +0.42 — — — — — — — — — — — — — — — —
Career 1608 108.4 — — — — +7 -13 +33 39.6% -0.58 5–11 (31%) 2–4 (33%) 93.7 +6.53 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.