H2H data updated: 2026-09-13 00:00 UTC

Petra Delhees Jauch vs Mareen Louie Harper H2H: 1-0

Petra Delhees Jauch holds a 1–0 lead over Mareen Louie Harper in their WTA head-to-head. Across 1 main-draw meeting, Petra Delhees Jauch leads 1–0 on carpet. Most recently, Petra Delhees Jauch won the 1982 Dallas round of 32 6-4 6-2.

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Petra Delhees Jauch
SUI
H2H
1 – 0
1 main-draw meetings
Mareen Louie Harper
USA Age 66

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Petra Delhees Jauch 6-4 6-2 Mareen Louie Harper Match data Mar 11, 1982* R32 Dallas 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
Petra Delhees Jauch — — — 1,719 69 91 43.1% 0 0 0 0 1 1
Mareen Louie Harper — — — 1,910 177 239 42.5% 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.

Petra Delhees Jauch Mareen Louie Harper
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1975 0–1 0.0% — 1,483 0 0 1974 2–1 66.7% — 1,523 0 0
1976 0–3 0.0% — 1,466 0 0 1976 1–2 33.3% — 1,521 0 0
1977 0–1 0.0% — 1,450 0 0 1977 0–2 0.0% — 1,519 0 0
1978 6–6 50.0% — 1,533 0 0 1978 7–12 36.8% — 1,588 0 0
1979 12–8 60.0% — 1,652 0 1 1979 4–13 23.5% — 1,568 0 0
1980 5–12 29.4% — 1,579 0 1 1980 22–23 48.9% — 1,714 0 0
1981 6–10 37.5% — 1,583 0 1 1981 16–20 44.4% — 1,743 0 0
1982 10–17 37.0% — 1,618 0 1 1982 9–18 33.3% — 1,654 0 0
1983 15–15 50.0% — 1,673 0 1 1983 7–10 41.2% — 1,671 0 0
1984 4–9 30.8% — 1,641 0 1 1984 18–17 51.4% — 1,733 0 1
1985 11–9 55.0% — 1,704 0 1 1985 29–18 61.7% — 1,776 0 2
— — — — — — — 1986 12–17 41.4% — 1,679 0 2
— — — — — — — 1987 9–16 36.0% — 1,623 0 2
— — — — — — — 1988 12–17 41.4% — 1,613 0 2
— — — — — — — 1989 6–14 30.0% — 1,576 0 2
— — — — — — — 1990 10–15 40.0% — 1,590 0 2
— — — — — — — 1991 12–16 42.9% — 1,614 0 2
— — — — — — — 1992 1–7 12.5% — 1,545 0 2
— — — — — — — 1994 0–1 0.0% — 1,536 0 2

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 Mareen Louie Harper
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% — — — — — — — — 1974 2 1 3 66.7% — — — — — — — — — — — —
1976 — — — — 0 2 2 0.0% 0 1 1 0.0% — — — — 1976 — — — — 0 1 1 0.0% 1 1 2 50.0% — — — —
1977 — — — — — — — — — — — — 0 1 1 0.0% 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
1978 — — — — 5 2 7 71.4% 1 3 4 25.0% — — — — 1978 4 5 9 44.4% 3 3 6 50.0% — — — — 0 4 4 0.0%
1979 1 1 2 50.0% 1 2 3 33.3% 1 3 4 25.0% 3 1 4 75.0% 1979 2 6 8 25.0% 0 1 1 0.0% 0 1 1 0.0% 2 5 7 28.6%
1980 0 1 1 0.0% 3 6 9 33.3% — — — — 2 5 7 28.6% 1980 7 8 15 46.7% 3 2 5 60.0% 5 2 7 71.4% 7 11 18 38.9%
1981 — — — — 5 7 12 41.7% 1 2 3 33.3% 0 1 1 0.0% 1981 5 7 12 41.7% 1 1 2 50.0% 1 2 3 33.3% 9 10 19 47.4%
1982 1 3 4 25.0% 5 6 11 45.5% 2 5 7 28.6% 2 3 5 40.0% 1982 4 6 10 40.0% 2 1 3 66.7% 0 2 2 0.0% 3 9 12 25.0%
1983 6 5 11 54.5% 7 7 14 50.0% 1 1 2 50.0% 1 2 3 33.3% 1983 5 5 10 50.0% — — — — — — — — 2 5 7 28.6%
1984 3 2 5 60.0% 1 6 7 14.3% 0 1 1 0.0% — — — — 1984 14 9 23 60.9% 0 1 1 0.0% 1 3 4 25.0% 3 4 7 42.9%
1985 1 2 3 33.3% 10 7 17 58.8% — — — — — — — — 1985 18 9 27 66.7% 0 2 2 0.0% 2 2 4 50.0% 9 5 14 64.3%
— — — — — — — — — — — — — — — — — 1986 8 7 15 53.3% — — — — 1 2 3 33.3% 3 8 11 27.3%
— — — — — — — — — — — — — — — — — 1987 6 8 14 42.9% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0%
— — — — — — — — — — — — — — — — — 1988 8 11 19 42.1% 1 1 2 50.0% 0 2 2 0.0% 3 3 6 50.0%
— — — — — — — — — — — — — — — — — 1989 3 9 12 25.0% — — — — 2 3 5 40.0% 1 2 3 33.3%
— — — — — — — — — — — — — — — — — 1990 8 10 18 44.4% — — — — 0 2 2 0.0% 2 3 5 40.0%
— — — — — — — — — — — — — — — — — 1991 9 11 20 45.0% — — — — 1 2 3 33.3% 2 3 5 40.0%
— — — — — — — — — — — — — — — — — 1992 1 5 6 16.7% — — — — — — — — 0 2 2 0.0%
— — — — — — — — — — — — — — — — — 1994 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 104 118 222 46.8% 10 16 26 38.5% 16 27 43 37.2% 47 78 125 37.6%

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 Mareen Louie Harper
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 1974 1524 102.4 — — — — +72 — — 57.1% +0.29 1–0 1–0 — +0.56
1976 1467 98.7 — — — — — — — 0.0% -3.67 — — — -0.17 1976 1522 100.6 — — — — — — — 42.9% -0.57 0–1 — — +0.36
1977 1450 96.1 — — — — — — — 0.0% -3.50 — — — +0.42 1977 1520 116.3 — — — — — — — 0.0% -3.50 — 0–1 — -0.35
1978 1533 116.6 — — — — — +53 -9 39.1% -0.96 2–1 (67%) 1–1 — +0.07 1978 1589 122.4 — — — — +31 -31 — 34.1% -1.25 5–1 (83%) 2–1 (67%) 108.1 -0.33
1979 1652 121.1 — — — — -19 -54 -125 54.8% +0.14 5–1 (83%) 1–2 (33%) — +0.87 1979 1568 121.3 — — — — +25 — — 30.0% -1.90 2–4 (33%) 2–1 (67%) — +0.42
1980 1580 121.7 — — — — -25 -12 — 35.9% -0.79 1–4 (20%) 1–4 (20%) 94.8 +1.16 1980 1714 128.5 — — — — -41 -153 -36 46.2% -0.59 12–4 (75%) 2–6 (25%) 107.6 +1.57
1981 1584 118.5 — — — — — +12 -38 42.1% -0.21 2–4 (33%) 1–3 (25%) 97.4 +0.74 1981 1743 134.3 — — — — -2 — -72 42.7% -0.51 7–5 (58%) 4–2 (67%) 105.0 -1.63
1982 1619 133.1 — — — — -48 -27 -57 41.7% -0.78 1–5 (17%) 4–1 (80%) 99.1 -2.23 1982 1655 124.8 — — — — -27 -46 — 35.5% -1.06 4–4 (50%) 1–2 (33%) 99.6 -1.27
1983 1673 122.9 — — — — -58 +21 — 48.5% -0.05 4–2 (67%) 2–4 (33%) 101.7 +0.98 1983 1671 132.0 — — — — -14 — — 42.9% -0.43 2–1 (67%) 1–2 (33%) 100.4 -0.99
1984 1641 109.6 — — — — -12 -25 — 36.7% -1.13 1–3 (25%) 1–0 — -0.15 1984 1733 127.5 — — — — +24 — -94 48.8% -0.05 7–3 (70%) 2–3 (40%) 105.0 +0.67
1985 1705 132.4 — — — — -86 +6 — 56.5% +0.17 2–4 (33%) 1–1 — -1.26 1985 1777 143.7 — — — — +52 — -157 58.5% +0.41 8–4 (67%) 5–5 (50%) 101.8 -0.01
— — — — — — — — — — — — — — — — 1986 1680 121.2 — — — — +20 — -65 39.1% -0.55 5–3 (63%) 2–5 (29%) 97.5 +1.39
— — — — — — — — — — — — — — — — 1987 1624 119.5 — — — — +6 — -17 38.6% -0.67 3–4 (43%) 1–1 — +0.33
— — — — — — — — — — — — — — — — 1988 1614 129.1 — — — — +11 — — 43.3% -0.43 4–5 (44%) 5–4 (56%) 100.4 -0.29
— — — — — — — — — — — — — — — — 1989 1576 117.3 — — — — -17 — -21 32.0% -1.38 6–4 (60%) 6–1 (86%) 107.4 -1.33
— — — — — — — — — — — — — — — — 1990 1590 128.4 — — — — +10 — — 45.8% -0.14 2–7 (22%) 1–3 (25%) 94.5 +0.31
— — — — — — — — — — — — — — — — 1991 1615 127.2 — — — — -4 — -50 39.4% -0.53 8–4 (67%) 4–4 (50%) 105.2 +0.46
— — — — — — — — — — — — — — — — 1992 1545 105.4 — — — — -7 — — 25.0% -1.81 0–2 1–0 — -0.11
— — — — — — — — — — — — — — — — 1994 1537 103.8 — — — — — — — 0.0% -2.50 — 0–1 — -0.17
Career 1719 129.5 — — — — -42 +2 -58 44.1% -0.47 18–24 (43%) 12–16 (43%) 99.0 +0.43 Career 1911 135.2 — — — — +7 -78 -59 42.4% -0.57 76–56 (58%) 40–42 (49%) 107.5 -0.10

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.