H2H data updated: 2026-07-19 02:51 UTC

Mary Hamm vs Betty Ann Grubb H2H: 0-1

Betty Ann Grubb holds a 1–0 lead over Mary Hamm in their WTA head-to-head. Across 1 main-draw meeting, Betty Ann Grubb leads 1–0 on hard courts. Most recently, Betty Ann Grubb won the 1976 Kona third round 6-3 6-1.

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Mary Hamm
USA
H2H
0 – 1
1 main draw meetings
Betty Ann Grubb

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Dec 16, 1976* Kona WTA 250 R32 Hard Betty Ann Grubb 6-3 6-1 Mary Hamm 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
Mary Hamm — — — 1,681 31 42 42.5% 0 0 0 0 0 0
Betty Ann Grubb — — — 1,822 124 112 52.5% 0 0 0 0 7 7

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.

Mary Hamm Betty Ann Grubb
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1969 0–1 0.0% — 1,491 0 0 1968 21–8 72.4% — 1,633 0 3
1973 1–4 20.0% — 1,472 0 0 1969 29–14 67.4% — 1,778 0 5
1974 4–3 57.1% — 1,518 0 0 1970 18–15 54.5% — 1,685 0 5
1975 4–3 57.1% — 1,541 0 0 1971 5–11 31.2% — 1,687 0 5
1976 6–6 50.0% — 1,587 0 0 1972 2–2 50.0% — 1,679 0 6
1977 12–18 40.0% — 1,660 0 0 1973 4–4 50.0% — 1,703 0 7
1978 1–4 20.0% — 1,631 0 0 1974 7–10 41.2% — 1,676 0 7
1981 3–3 50.0% — 1,603 0 0 1975 5–4 55.6% — 1,729 0 7
— — — — — — — 1976 2–4 33.3% — 1,684 0 7
— — — — — — — 1977 0–2 0.0% — 1,654 0 7
— — — — — — — 1978 3–1 75.0% — 1,661 0 7
— — — — — — — 1979 25–26 49.0% — 1,814 0 7
— — — — — — — 1980 2–9 18.2% — 1,720 0 7
— — — — — — — 1981 1–2 33.3% — 1,707 0 7