H2H data updated: 2026-09-12 00:00 UTC

Roberta Mccallum vs Phyllis Blackwell H2H: 1-0

Roberta Mccallum holds a 1–0 lead over Phyllis Blackwell in their WTA head-to-head. Across 1 main-draw meeting, Roberta Mccallum leads 1–0 on carpet. Most recently, Roberta Mccallum won the 1980 Tucson round of 32 6-4 1-6 6-4.

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

Roberta Mccallum
USA Age 67
H2H
1 – 0
1 main-draw meetings
Phyllis Blackwell
USA Age 69

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Roberta Mccallum 6-4 1-6 6-4 Phyllis Blackwell Match data Dec 18, 1980* R32 Tucson WTA 250 Carpet

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
Roberta Mccallum — — — 1,660 24 43 35.8% 0 0 0 0 0 0
Phyllis Blackwell — — — 1,634 28 26 51.9% 0 0 0 0 1 1

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.

Age Roberta Mccallum Phyllis Blackwell
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1975 0–2 0.0% — 1,464 0 0
19 1978 0–1 0.0% — 1,484 0 0 1976 1–1 50.0% — 1,465 0 0
20 1979 6–5 54.5% — 1,573 0 0 1977 0–1 0.0% — 1,451 0 0
21 1980 14–27 34.1% — 1,582 0 0 — — — — — — —
22 1981 4–9 30.8% — 1,568 0 0 — — — — — — —
23 1982 0–1 0.0% — 1,549 0 0 1980 5–8 38.5% — 1,466 0 0
25 — — — — — — — 1982 21–11 65.6% — 1,605 0 1
26 — — — — — — — 1983 1–3 25.0% — 1,593 0 1

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Roberta Mccallum Phyllis Blackwell
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 %
20 1979 — — — — — — — — 3 4 7 42.9% — — — — — — — — — — — — — — — — — — — — —
21 1980 3 4 7 42.9% 0 3 3 0.0% 1 4 5 20.0% 10 16 26 38.5% — — — — — — — — — — — — — — — — —
22 1981 2 4 6 33.3% 0 1 1 0.0% 0 1 1 0.0% 2 3 5 40.0% — — — — — — — — — — — — — — — — —
23 1982 0 1 1 0.0% — — — — — — — — — — — — 1980 1 2 3 33.3% 0 1 1 0.0% — — — — 0 2 2 0.0%
25 — — — — — — — — — — — — — — — — — 1982 12 4 16 75.0% 2 1 3 66.7% — — — — 0 1 1 0.0%
26 — — — — — — — — — — — — — — — — — 1983 1 3 4 25.0% — — — — — — — — — — — —
Career — 5 9 14 35.7% 0 4 4 0.0% 4 9 13 30.8% 12 19 31 38.7% — 14 9 23 60.9% 2 2 4 50.0% — — — — 0 3 3 0.0%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. 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.

Age Roberta Mccallum Phyllis Blackwell
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
18 — — — — — — — — — — — — — — — — 1975 1465 95.6 — — — — — — — 33.3% -1.34 0–2 — — +0.39
19 1978 1484 96.8 — — — — — — — 0.0% -3.50 — 0–1 — +0.04 1976 1466 99.1 — — — — — — — 50.0% 0.00 — — — +0.07
20 1979 1573 116.3 — — — — — — +15 50.0% -0.46 1–3 (25%) 1–0 — -0.41 1977 1452 88.5 — — — — — — — 0.0% -6.00 — — — +0.05
21 1980 1582 127.2 — — — — +6 -80 -45 35.9% -1.14 5–5 (50%) 1–2 (33%) 99.9 +1.55 — — — — — — — — — — — — — — — —
22 1981 1568 107.3 — — — — +56 — — 33.3% -1.81 0–1 2–1 (67%) — +0.48 — — — — — — — — — — — — — — — —
23 1982 1549 95.7 — — — — — — — 0.0% -4.00 — — — +0.17 1980 1467 99.4 — — — — +51 — — 37.5% -1.06 4–2 (67%) 2–0 — +0.10
25 — — — — — — — — — — — — — — — — 1982 1606 111.7 — — — — +41 -66 — 61.4% +0.53 5–3 (63%) 8–0 (100%) 109.3 +3.28
26 — — — — — — — — — — — — — — — — 1983 1593 96.0 — — — — +36 — — 22.2% -2.45 1–0 0–1 — -0.17
Career — 1661 121.1 — — — — +19 -80 -10 36.6% -1.23 6–9 (40%) 4–4 (50%) 98.5 +2.73 — 1634 103.1 — — — — +42 -66 — 49.6% -0.32 10–7 (59%) 10–1 (91%) 109.5 +7.02

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.