H2H data updated: 2026-09-14 00:00 UTC

Petra Delhees Jauch vs Yvonne Vermaak H2H: 2-1

Petra Delhees Jauch holds a 2–1 lead over Yvonne Vermaak in their WTA head-to-head. Across 3 main-draw meetings, they are tied 1–1 on clay, while Petra Delhees Jauch leads 1–0 on grass. Most recently, Petra Delhees Jauch won the 1983 Hilton Head round of 64 6-1 6-3.

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Petra Delhees Jauch
SUI
H2H
2 – 1
3 main-draw meetings
Yvonne Vermaak
RSA Age 69 Right-Handed 155 cm / 5'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Petra Delhees Jauch 6-1 6-3 Yvonne Vermaak Match data Apr 6, 1983* R64 Hilton Head WTA 250 Clay
Petra Delhees Jauch 2-6 6-2 7-6 Yvonne Vermaak Match data Dec 3, 1982* R64 Australian Open Grand Slam Grass
Yvonne Vermaak 6-1 4-6 6-4 Petra Delhees Jauch Match data Apr 9, 1981* R32 Hilton Head 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
Petra Delhees Jauch — — — 1,719 69 91 43.1% 0 0 0 0 1 1
Yvonne Vermaak #558 #38 10 1,892 239 249 49.0% 0 0 0 0 5 5

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.

Petra Delhees Jauch Yvonne Vermaak
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1975 0–1 0.0% — 1,483 0 0 1973 0–2 0.0% — 1,495 0 0
1976 0–3 0.0% — 1,466 0 0 1974 1–2 33.3% — 1,489 0 0
1977 0–1 0.0% — 1,450 0 0 1975 15–12 55.6% — 1,599 0 0
1978 6–6 50.0% — 1,533 0 0 1976 8–10 44.4% — 1,606 0 1
1979 12–8 60.0% — 1,652 0 1 1977 20–14 58.8% — 1,765 0 2
1980 5–12 29.4% — 1,579 0 1 1978 29–23 55.8% — 1,791 0 2
1981 6–10 37.5% — 1,583 0 1 1979 15–23 39.5% — 1,779 0 2
1982 10–17 37.0% — 1,618 0 1 1980 19–18 51.4% — 1,741 0 2
1983 15–15 50.0% — 1,673 0 1 1981 19–28 40.4% — 1,719 0 2
1984 4–9 30.8% — 1,641 0 1 1982 36–27 57.1% — 1,820 0 2
1985 11–9 55.0% — 1,704 0 1 1983 33–26 55.9% — 1,754 0 4
— — — — — — — 1984 29–28 50.9% #41 1,800 0 5
— — — — — — — 1985 8–21 27.6% #41 1,604 0 5
— — — — — — — 1986 6–11 35.3% #104 1,565 0 5
— — — — — — — 1987 1–3 25.0% #201 1,558 0 5
— — — — — — — 1988 0–1 0.0% #287 1,541 0 5

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Petra Delhees Jauch Yvonne Vermaak
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 %
1975 — — — — 0 1 1 0.0% — — — — — — — — 1973 0 2 2 0.0% — — — — — — — — — — — —
1976 — — — — 0 2 2 0.0% 0 1 1 0.0% — — — — 1974 1 2 3 33.3% — — — — — — — — — — — —
1977 — — — — — — — — — — — — 0 1 1 0.0% 1975 4 3 7 57.1% 7 4 11 63.6% 3 4 7 42.9% — — — —
1978 — — — — 5 2 7 71.4% 1 3 4 25.0% — — — — 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% 1 2 3 33.3% 1 3 4 25.0% 3 1 4 75.0% 1977 3 2 5 60.0% 6 7 13 46.2% 8 2 10 80.0% 3 3 6 50.0%
1980 0 1 1 0.0% 3 6 9 33.3% — — — — 2 5 7 28.6% 1978 13 7 20 65.0% 2 2 4 50.0% 8 4 12 66.7% 6 10 16 37.5%
1981 — — — — 5 7 12 41.7% 1 2 3 33.3% 0 1 1 0.0% 1979 4 6 10 40.0% 4 4 8 50.0% 5 4 9 55.6% 2 9 11 18.2%
1982 1 3 4 25.0% 5 6 11 45.5% 2 5 7 28.6% 2 3 5 40.0% 1980 2 5 7 28.6% 9 5 14 64.3% 4 4 8 50.0% 4 4 8 50.0%
1983 6 5 11 54.5% 7 7 14 50.0% 1 1 2 50.0% 1 2 3 33.3% 1981 7 9 16 43.8% 11 9 20 55.0% 0 1 1 0.0% 1 9 10 10.0%
1984 3 2 5 60.0% 1 6 7 14.3% 0 1 1 0.0% — — — — 1982 4 4 8 50.0% 13 7 20 65.0% 9 6 15 60.0% 10 10 20 50.0%
1985 1 2 3 33.3% 10 7 17 58.8% — — — — — — — — 1983 14 4 18 77.8% 7 8 15 46.7% 8 5 13 61.5% 4 9 13 30.8%
— — — — — — — — — — — — — — — — — 1984 12 7 19 63.2% 7 8 15 46.7% 8 6 14 57.1% 2 7 9 22.2%
— — — — — — — — — — — — — — — — — 1985 5 8 13 38.5% 1 4 5 20.0% 1 3 4 25.0% 1 6 7 14.3%
— — — — — — — — — — — — — — — — — 1986 1 2 3 33.3% 4 6 10 40.0% 1 3 4 25.0% — — — —
— — — — — — — — — — — — — — — — — 1987 1 1 2 50.0% 0 2 2 0.0% — — — — — — — —
— — — — — — — — — — — — — — — — — 1988 0 1 1 0.0% — — — — — — — — — — — —
Career 12 14 26 46.2% 37 46 83 44.6% 6 16 22 27.3% 8 13 21 38.1% Career 72 64 136 52.9% 78 72 150 52.0% 55 44 99 55.6% 33 68 101 32.7%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Petra Delhees Jauch Yvonne Vermaak
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
1975 1484 96.6 — — — — — — — 0.0% -3.00 — — — +0.26 1973 1496 101.8 — — — — — — — 20.0% -3.20 0–1 — — -0.39
1976 1467 98.7 — — — — — — — 0.0% -3.67 — — — -0.17 1974 1489 99.2 — — — — +44 — — 42.9% -0.71 0–1 — — +0.69
1977 1450 96.1 — — — — — — — 0.0% -3.50 — — — +0.42 1975 1599 120.1 — — — — +53 -2 -47 57.1% +0.46 3–6 (33%) 3–0 (100%) 100.2 +2.43
1978 1533 116.6 — — — — — +53 -9 39.1% -0.96 2–1 (67%) 1–1 — +0.07 1976 1607 119.9 — — — — -10 +40 — 48.8% +0.09 2–5 (29%) 1–3 (25%) — +0.96
1979 1652 121.1 — — — — -19 -54 -125 54.8% +0.14 5–1 (83%) 1–2 (33%) — +0.87 1977 1765 138.0 — — — — -79 -79 -75 58.1% +0.41 3–3 (50%) 6–5 (55%) 102.4 +0.27
1980 1580 121.7 — — — — -25 -12 — 35.9% -0.79 1–4 (20%) 1–4 (20%) 94.8 +1.16 1978 1791 135.3 — — — — +3 -132 -30 52.6% +0.33 8–6 (57%) 2–6 (25%) 99.2 +2.99
1981 1584 118.5 — — — — — +12 -38 42.1% -0.21 2–4 (33%) 1–3 (25%) 97.4 +0.74 1979 1780 155.2 — — — — -44 -74 +25 40.5% -0.50 4–4 (50%) 1–2 (33%) 99.0 -4.03
1982 1619 133.1 — — — — -48 -27 -57 41.7% -0.78 1–5 (17%) 4–1 (80%) 99.1 -2.23 1980 1742 138.8 — — — — -89 +32 +50 52.5% +0.26 2–4 (33%) 4–3 (57%) 99.5 -4.96
1983 1673 122.9 — — — — -58 +21 — 48.5% -0.05 4–2 (67%) 2–4 (33%) 101.7 +0.98 1981 1720 143.5 — — — — -64 +96 — 43.1% -0.39 4–6 (40%) 1–5 (17%) 96.9 -2.78
1984 1641 109.6 — — — — -12 -25 — 36.7% -1.13 1–3 (25%) 1–0 — -0.15 1982 1820 142.9 — — — — -77 +69 -9 55.2% +0.06 11–10 (52%) 9–10 (47%) 99.8 -3.53
1985 1705 132.4 — — — — -86 +6 — 56.5% +0.17 2–4 (33%) 1–1 — -1.26 1983 1755 138.0 — — — — +7 +104 +97 55.4% +0.20 10–11 (48%) 7–3 (70%) 100.0 +1.14
— — — — — — — — — — — — — — — — 1984 1801 134.8 — — — — -65 -14 +95 53.1% +0.15 5–11 (31%) 7–8 (47%) 94.0 -0.64
— — — — — — — — — — — — — — — — 1985 1605 125.4 — — — — +10 +114 +210 37.7% -0.97 1–10 (9%) 0–1 — -0.99
— — — — — — — — — — — — — — — — 1986 1565 105.1 — — — — +19 +86 +196 36.8% -0.87 2–2 (50%) 0–1 — 0.00
— — — — — — — — — — — — — — — — 1987 1558 108.1 — — — — — — — 25.0% -2.38 — — — -0.56
— — — — — — — — — — — — — — — — 1988 1542 94.0 — — — — — — — 0.0% -4.00 — — — +0.11
Career 1719 129.5 — — — — -42 +2 -58 44.1% -0.47 18–24 (43%) 12–16 (43%) 99.0 +0.43 Career 1892 141.9 — — — — -33 +33 +34 50.0% -0.05 55–80 (41%) 41–47 (47%) 93.1 -1.91

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.