H2H data updated: 2026-10-28 00:00 UTC

Yvonne Vermaak vs Claudia Casabianca H2H: 1-0

Yvonne Vermaak holds a 1–0 lead over Claudia Casabianca in their WTA head-to-head. Across 1 main-draw meeting, Yvonne Vermaak leads 1–0 on clay. Most recently, Yvonne Vermaak won the 1980 Perugia round of 32 6-4 6-1.

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

Yvonne Vermaak
RSA Age 69 Right-Handed 155 cm / 5'1"
H2H
1 – 0
1 main-draw meetings
Claudia Casabianca
ARG Age 66

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Yvonne Vermaak 6-4 6-1 Claudia Casabianca Match data May 8, 1980* R32 Perugia 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
Yvonne Vermaak — #38 10 1,892 239 250 48.9% 0 0 0 0 5 5
Claudia Casabianca — — — 1,671 28 26 51.9% 0 0 0 0 2 2

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 Yvonne Vermaak Claudia Casabianca
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 1975 0–1 0.0% — 1,481 0 0
16 1973 0–2 0.0% — 1,495 0 0 — — — — — — —
17 1974 1–2 33.3% — 1,489 0 0 1977 0–1 0.0% — 1,475 0 0
18 1975 15–12 55.6% — 1,599 0 0 1978 0–6 0.0% — 1,443 0 0
19 1976 8–10 44.4% — 1,606 0 1 1979 1–1 50.0% — 1,453 0 0
20 1977 20–14 58.8% — 1,765 0 2 1980 20–11 64.5% — 1,621 0 2
21 1978 29–23 55.8% — 1,794 0 2 1981 7–6 53.8% — 1,640 0 2
22 1979 15–23 39.5% — 1,781 0 2 — — — — — — —
23 1980 19–19 50.0% — 1,735 0 2 — — — — — — —
24 1981 19–28 40.4% — 1,720 0 2 — — — — — — —
25 1982 36–27 57.1% — 1,821 0 2 — — — — — — —
26 1983 33–26 55.9% — 1,755 0 4 — — — — — — —
27 1984 29–28 50.9% #41 1,801 0 5 — — — — — — —
28 1985 8–21 27.6% — 1,605 0 5 — — — — — — —
29 1986 6–11 35.3% #104 1,565 0 5 — — — — — — —
30 1987 1–3 25.0% #201 1,558 0 5 — — — — — — —
31 1988 0–1 0.0% #287 1,542 0 5 — — — — — — —

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 Yvonne Vermaak Claudia Casabianca
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% — — — — — — — —
16 1973 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
17 1974 1 2 3 33.3% — — — — — — — — — — — — 1977 — — — — 0 1 1 0.0% — — — — — — — —
18 1975 4 3 7 57.1% 7 4 11 63.6% 3 4 7 42.9% — — — — 1978 0 1 1 0.0% 0 3 3 0.0% 0 1 1 0.0% — — — —
19 1976 1 1 2 50.0% 7 6 13 53.8% 0 2 2 0.0% 0 1 1 0.0% 1979 — — — — — — — — 1 1 2 50.0% — — — —
20 1977 3 2 5 60.0% 6 7 13 46.2% 8 2 10 80.0% 3 3 6 50.0% 1980 1 3 4 25.0% 9 4 13 69.2% 1 1 2 50.0% — — — —
21 1978 13 7 20 65.0% 2 2 4 50.0% 8 4 12 66.7% 6 10 16 37.5% 1981 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — —
22 1979 4 6 10 40.0% 4 4 8 50.0% 5 4 9 55.6% 2 9 11 18.2% — — — — — — — — — — — — — — — — —
23 1980 2 5 7 28.6% 9 5 14 64.3% 4 4 8 50.0% 4 5 9 44.4% — — — — — — — — — — — — — — — — —
24 1981 7 9 16 43.8% 11 9 20 55.0% 0 1 1 0.0% 1 9 10 10.0% — — — — — — — — — — — — — — — — —
25 1982 4 4 8 50.0% 13 7 20 65.0% 9 6 15 60.0% 10 10 20 50.0% — — — — — — — — — — — — — — — — —
26 1983 14 4 18 77.8% 7 8 15 46.7% 8 5 13 61.5% 4 9 13 30.8% — — — — — — — — — — — — — — — — —
27 1984 12 7 19 63.2% 7 8 15 46.7% 8 6 14 57.1% 2 7 9 22.2% — — — — — — — — — — — — — — — — —
28 1985 5 8 13 38.5% 1 4 5 20.0% 1 3 4 25.0% 1 6 7 14.3% — — — — — — — — — — — — — — — — —
29 1986 1 2 3 33.3% 4 6 10 40.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — —
30 1987 1 1 2 50.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
31 1988 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 72 64 136 52.9% 78 72 150 52.0% 55 44 99 55.6% 33 69 102 32.4% — 1 4 5 20.0% 9 10 19 47.4% 2 4 6 33.3% — — — —

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 Yvonne Vermaak Claudia Casabianca
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
16 1973 1496 101.8 — — — — — — — 20.0% -3.20 0–1 — — -0.39 — — — — — — — — — — — — — — — —
17 1974 1489 99.2 — — — — +43 — — 42.9% -0.71 0–1 — — +0.69 1977 1476 103.1 — — — — — — — 33.3% -1.67 0–1 — — -0.01
18 1975 1599 120.1 — — — — +53 -2 -47 57.1% +0.46 3–6 (33%) 3–0 (100%) 100.2 +2.23 1978 1444 113.4 — — — — — +16 — 14.3% -2.22 0–2 0–1 — -0.70
19 1976 1607 119.9 — — — — -10 +39 — 48.8% +0.09 2–5 (29%) 1–3 (25%) — +0.77 1979 1453 101.2 — — — — — — — 50.0% +0.67 1–1 — — +0.26
20 1977 1766 138.3 — — — — -80 -80 -75 58.1% +0.41 3–3 (50%) 6–5 (55%) 102.5 -0.04 1980 1621 134.7 — — — — -67 -65 — 61.8% +1.16 4–4 (50%) 2–1 (67%) 102.8 -0.02
21 1978 1794 135.9 — — — — +3 -135 -32 52.6% +0.33 8–6 (57%) 2–6 (25%) 99.2 +2.36 1981 1641 130.3 — — — — — — — 57.7% +0.88 1–1 0–1 — -0.47
22 1979 1781 155.4 — — — — -43 -75 +23 40.5% -0.50 4–4 (50%) 1–2 (33%) 99.0 -4.15 — — — — — — — — — — — — — — — —
23 1980 1735 137.1 — — — — -93 +40 +57 51.2% +0.13 2–4 (33%) 4–3 (57%) 99.6 -4.28 — — — — — — — — — — — — — — — —
24 1981 1720 144.0 — — — — -67 +97 — 43.1% -0.39 4–6 (40%) 1–5 (17%) 97.0 -2.56 — — — — — — — — — — — — — — — —
25 1982 1821 143.1 — — — — -78 +69 -9 55.2% +0.06 11–10 (52%) 9–10 (47%) 99.9 -2.99 — — — — — — — — — — — — — — — —
26 1983 1755 138.2 — — — — +8 +105 +98 55.4% +0.20 10–11 (48%) 7–3 (70%) 100.1 +1.01 — — — — — — — — — — — — — — — —
27 1984 1801 135.0 — — — — -65 -14 +95 53.1% +0.15 5–11 (31%) 7–8 (47%) 94.0 -0.27 — — — — — — — — — — — — — — — —
28 1985 1605 125.4 — — — — +12 +115 +210 37.7% -0.97 1–10 (9%) 0–1 — -0.88 — — — — — — — — — — — — — — — —
29 1986 1566 105.2 — — — — +20 +85 +195 36.8% -0.87 2–2 (50%) 0–1 — -0.31 — — — — — — — — — — — — — — — —
30 1987 1559 108.1 — — — — — — — 25.0% -2.38 — — — -0.55 — — — — — — — — — — — — — — — —
31 1988 1542 94.0 — — — — — — — 0.0% -4.00 — — — +0.11 — — — — — — — — — — — — — — — —
Career — 1893 142.0 — — — — -34 +34 +34 50.0% -0.06 55–80 (41%) 41–47 (47%) 93.2 -1.90 — 1671 131.8 — — — — -67 -50 — 53.3% +0.54 6–10 (38%) 3–3 (50%) 98.5 -1.23

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.