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

Isabelle Villiger vs Sherry Acker H2H: 0-1

Sherry Acker holds a 1–0 lead over Isabelle Villiger in their WTA head-to-head. Across 1 main-draw meeting, Sherry Acker leads 1–0 on carpet. Most recently, Sherry Acker won the 1980 Porsche Tennis Grand Prix quarterfinal 6-2 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.

Isabelle Villiger
SUI Age 74
H2H
0 – 1
1 main-draw meetings
Sherry Acker
USA Age 67 Right-Handed 173 cm / 5'8"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sherry Acker 6-2 6-1 Isabelle Villiger Match data Nov 8, 1980* QF Porsche Tennis Grand Prix 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
Isabelle Villiger — — — 1,686 24 31 43.6% 0 0 0 0 1 1
Sherry Acker — — — 1,838 63 100 38.7% 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 Isabelle Villiger Sherry Acker
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 1972 0–1 0.0% — 1,484 0 0 1979 13–21 38.2% — 1,591 0 0
21 — — — — — — — 1980 29–31 48.3% — 1,827 0 0
22 — — — — — — — 1981 8–19 29.6% — 1,679 0 0
23 — — — — — — — 1982 1–5 16.7% — 1,629 0 0
24 — — — — — — — 1983 11–15 42.3% — 1,618 0 0
25 — — — — — — — 1984 1–9 10.0% — 1,523 0 0
26 1978 2–2 50.0% — 1,499 0 0 — — — — — — —
27 1979 0–2 0.0% — 1,477 0 0 — — — — — — —
28 1980 13–6 68.4% — 1,644 0 1 — — — — — — —
29 1981 9–16 36.0% — 1,641 0 1 — — — — — — —
30 1982 0–3 0.0% — 1,595 0 1 — — — — — — —
31 1983 0–1 0.0% — 1,582 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 Isabelle Villiger Sherry Acker
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 1972 — — — — 0 1 1 0.0% — — — — — — — — 1979 7 6 13 53.8% 3 5 8 37.5% 1 6 7 14.3% 2 4 6 33.3%
21 — — — — — — — — — — — — — — — — — 1980 5 6 11 45.5% 3 4 7 42.9% 4 3 7 57.1% 17 18 35 48.6%
22 — — — — — — — — — — — — — — — — — 1981 4 5 9 44.4% 1 2 3 33.3% 2 6 8 25.0% 1 6 7 14.3%
23 — — — — — — — — — — — — — — — — — 1982 0 1 1 0.0% 0 1 1 0.0% 1 2 3 33.3% 0 1 1 0.0%
24 — — — — — — — — — — — — — — — — — 1983 4 6 10 40.0% 0 1 1 0.0% 6 6 12 50.0% 1 2 3 33.3%
25 — — — — — — — — — — — — — — — — — 1984 0 5 5 0.0% — — — — 0 2 2 0.0% 1 2 3 33.3%
26 1978 — — — — 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
27 1979 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
28 1980 — — — — 8 3 11 72.7% — — — — 5 3 8 62.5% — — — — — — — — — — — — — — — — —
29 1981 — — — — 7 7 14 50.0% 0 4 4 0.0% 2 5 7 28.6% — — — — — — — — — — — — — — — — —
30 1982 — — — — 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
31 1983 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — — — — — 17 18 35 48.6% 0 5 5 0.0% 7 8 15 46.7% — 20 29 49 40.8% 7 13 20 35.0% 14 25 39 35.9% 22 33 55 40.0%

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 Isabelle Villiger Sherry Acker
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
20 1972 1484 — — — — — — — — — — — — — +0.25 1979 1591 125.4 — — — — +78 -54 -62 40.0% -0.87 2–4 (33%) 2–3 (40%) 98.5 +2.65
21 — — — — — — — — — — — — — — — — 1980 1827 146.8 — — — — +12 -281 -229 47.8% -0.02 10–8 (56%) 6–6 (50%) 106.3 -1.45
22 — — — — — — — — — — — — — — — — 1981 1680 125.6 — — — — +54 -92 -121 33.3% -0.87 2–5 (29%) 2–5 (29%) 94.0 -2.47
23 — — — — — — — — — — — — — — — — 1982 1630 123.0 — — — — — — -41 33.3% -0.87 0–3 (0%) 1–2 (33%) — +0.22
24 — — — — — — — — — — — — — — — — 1983 1619 119.0 — — — — +4 — +38 39.3% -0.70 4–2 (67%) 3–4 (43%) 102.8 +0.10
25 — — — — — — — — — — — — — — — — 1984 1523 98.5 — — — — -7 — — 24.0% -1.40 1–4 (20%) 1–3 (25%) 95.3 +0.67
26 1978 1500 101.6 — — — — — +18 — 50.0% -0.25 — — — +0.34 — — — — — — — — — — — — — — — —
27 1979 1478 100.1 — — — — — — — 0.0% -3.00 — — — +0.24 — — — — — — — — — — — — — — — —
28 1980 1645 121.5 — — — — -22 +2 — 66.7% +0.77 1–2 (33%) 1–1 — +2.69 — — — — — — — — — — — — — — — —
29 1981 1641 119.5 — — — — -4 +42 -128 40.0% -1.27 4–6 (40%) 4–1 (80%) 100.7 -0.74 — — — — — — — — — — — — — — — —
30 1982 1596 102.7 — — — — — +8 — 14.3% -2.00 0–1 0–1 — -0.06 — — — — — — — — — — — — — — — —
31 1983 1583 — — — — — — — — — — — — — +0.31 — — — — — — — — — — — — — — — —
Career — 1687 119.2 — — — — -14 +22 -128 46.5% -0.64 5–9 (36%) 5–3 (63%) 98.5 +5.51 — 1839 135.3 — — — — +28 -149 -72 40.4% -0.56 19–26 (42%) 15–23 (39%) 97.2 -0.17

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.