H2H data updated: 2026-10-29 00:00 UTC

Claudia Casabianca vs Joyce Portman H2H: 0-1

Joyce Portman holds a 1–0 lead over Claudia Casabianca in their WTA head-to-head. Across 1 main-draw meeting, Joyce Portman leads 1–0 on clay. Most recently, Joyce Portman won the 1980 Indianapolis round of 32 6-3 7-5.

H2H
0 – 1
1 main-draw meetings

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Joyce Portman 6-3 7-5 Claudia Casabianca Match data Aug 7, 1980* R32 Indianapolis WTA 250 Clay

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
Claudia Casabianca — — — 1,671 28 26 51.9% 0 0 0 0 2 2
Joyce Portman — — — 1,650 17 30 36.2% 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.

Age Claudia Casabianca Joyce Portman
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 1975 0–1 0.0% — 1,481 0 0 — — — — — — —
17 1977 0–1 0.0% — 1,475 0 0 — — — — — — —
18 1978 0–6 0.0% — 1,443 0 0 — — — — — — —
19 1979 1–1 50.0% — 1,453 0 0 — — — — — — —
20 1980 20–11 64.5% — 1,621 0 2 1978 0–1 0.0% — 1,484 0 0
21 1981 7–6 53.8% — 1,640 0 2 1979 1–1 50.0% — 1,504 0 0
22 — — — — — — — 1980 6–9 40.0% — 1,520 0 0
23 — — — — — — — 1981 10–17 37.0% — 1,547 0 0
24 — — — — — — — 1982 0–2 0.0% — 1,534 0 0

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 Claudia Casabianca Joyce Portman
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 %
15 1975 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
17 1977 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
18 1978 0 1 1 0.0% 0 3 3 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
19 1979 — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
20 1980 1 3 4 25.0% 9 4 13 69.2% 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
21 1981 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — 1979 — — — — 1 1 2 50.0% — — — — — — — —
22 — — — — — — — — — — — — — — — — — 1980 1 5 6 16.7% 2 1 3 66.7% — — — — 0 2 2 0.0%
23 — — — — — — — — — — — — — — — — — 1981 3 7 10 30.0% 7 6 13 53.8% 0 1 1 0.0% 0 3 3 0.0%
24 — — — — — — — — — — — — — — — — — 1982 — — — — 0 2 2 0.0% — — — — — — — —
Career — 1 4 5 20.0% 9 10 19 47.4% 2 4 6 33.3% — — — — — 4 12 16 25.0% 10 10 20 50.0% 0 1 1 0.0% 0 5 5 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 Claudia Casabianca Joyce Portman
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
15 1975 1482 97.3 — — — — — — — 33.3% -1.67 0–1 1–0 — +0.30 — — — — — — — — — — — — — — — —
17 1977 1476 103.1 — — — — — — — 33.3% -1.67 0–1 — — -0.01 — — — — — — — — — — — — — — — —
18 1978 1444 113.4 — — — — — +16 — 14.3% -2.22 0–2 0–1 — -0.70 — — — — — — — — — — — — — — — —
19 1979 1453 101.2 — — — — — — — 50.0% +0.67 1–1 — — +0.26 — — — — — — — — — — — — — — — —
20 1980 1621 134.7 — — — — -67 -65 — 61.8% +1.16 4–4 (50%) 2–1 (67%) 102.8 -0.02 1978 1485 98.2 — — — — — — — 0.0% -2.50 — — — +0.08
21 1981 1641 130.3 — — — — — — — 57.7% +0.88 1–1 0–1 — -0.47 1979 1504 114.2 — — — — — — — 50.0% +1.00 — — — -0.10
22 — — — — — — — — — — — — — — — — 1980 1521 109.4 — — — — -36 +64 — 44.1% -0.91 1–3 (25%) 1–1 — -0.32
23 — — — — — — — — — — — — — — — — 1981 1548 121.7 — — — — -64 +139 — 43.1% -0.41 1–6 (14%) 0–3 (0%) 92.6 +0.87
24 — — — — — — — — — — — — — — — — 1982 1534 90.0 — — — — — — — 0.0% -5.25 — — — -0.31
Career — 1671 131.8 — — — — -67 -50 — 53.3% +0.54 6–10 (38%) 3–3 (50%) 98.5 -1.23 — 1650 115.9 — — — — -53 +125 — 41.2% -0.75 2–9 (18%) 1–4 (20%) 91.6 +0.47

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.