H2H data updated: 2026-07-19 02:51 UTC
Betty Ann Grubb vs Roberta Mccallum H2H: 1-0
Betty Ann Grubb holds a 1–0 lead over Roberta Mccallum in their WTA head-to-head. Across 1 main-draw meeting, Betty Ann Grubb leads 1–0 on grass. Most recently, Betty Ann Grubb won the 1979 Adelaide quarterfinal 6-1 4-6 6-4.
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H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Dec 15, 1979* | Adelaide | WTA 500 | QF | Grass | Betty Ann Grubb | 6-1 4-6 6-4 | Roberta Mccallum | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Betty Ann Grubb | — | — | — | 1,822 | 124 | 112 | 52.5% | 0 | 0 | 0 | 0 | 7 | 7 |
| Roberta Mccallum | — | — | — | 1,659 | 24 | 43 | 35.8% | 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.
| Betty Ann Grubb | Roberta Mccallum | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 21–8 | 72.4% | — | 1,633 | 0 | 3 | 1978 | 0–1 | 0.0% | — | 1,484 | 0 | 0 |
| 1969 | 29–14 | 67.4% | — | 1,778 | 0 | 5 | 1979 | 6–5 | 54.5% | — | 1,572 | 0 | 0 |
| 1970 | 18–15 | 54.5% | — | 1,685 | 0 | 5 | 1980 | 14–27 | 34.1% | — | 1,579 | 0 | 0 |
| 1971 | 5–11 | 31.2% | — | 1,687 | 0 | 5 | 1981 | 4–9 | 30.8% | — | 1,568 | 0 | 0 |
| 1972 | 2–2 | 50.0% | — | 1,679 | 0 | 6 | 1982 | 0–1 | 0.0% | — | 1,549 | 0 | 0 |
| 1973 | 4–4 | 50.0% | — | 1,703 | 0 | 7 | — | — | — | — | — | — | — |
| 1974 | 7–10 | 41.2% | — | 1,676 | 0 | 7 | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — | — |