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

Barbara Gerken vs Mareen Louie Harper H2H: 1-0

Barbara Gerken holds a 1–0 lead over Mareen Louie Harper in their WTA head-to-head. Across 1 main-draw meeting, Barbara Gerken leads 1–0 on carpet. Most recently, Barbara Gerken won the 1986 Dallas round of 64 7-5 7-6.

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

Barbara Gerken
USA Age 62
H2H
1 – 0
1 main-draw meetings
Mareen Louie Harper
USA Age 66

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Barbara Gerken 7-5 7-6 Mareen Louie Harper Match data Mar 12, 1986* R64 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
Barbara Gerken — — — 1,650 64 97 39.8% 0 0 0 0 0 0
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.

Age Barbara Gerken Mareen Louie Harper
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
13 — — — — — — — 1974 2–1 66.7% — 1,523 0 0
15 — — — — — — — 1976 1–2 33.3% — 1,521 0 0
16 1981 8–2 80.0% — 1,631 0 0 1977 0–2 0.0% — 1,519 0 0
17 1982 1–5 16.7% — 1,578 0 0 1978 7–12 36.8% — 1,588 0 0
18 1983 5–4 55.6% — 1,617 0 0 1979 4–13 23.5% — 1,568 0 0
19 1984 9–16 36.0% — 1,581 0 0 1980 22–23 48.9% — 1,714 0 0
20 1985 11–22 33.3% — 1,576 0 0 1981 16–20 44.4% — 1,743 0 0
21 1986 12–18 40.0% — 1,564 0 0 1982 9–18 33.3% — 1,654 0 0
22 1987 16–19 45.7% — 1,635 0 0 1983 7–10 41.2% — 1,671 0 0
23 1988 2–10 16.7% — 1,527 0 0 1984 18–17 51.4% — 1,733 0 1
24 1989 0–1 0.0% — 1,507 0 0 1985 29–18 61.7% — 1,776 0 2
25 — — — — — — — 1986 12–17 41.4% — 1,679 0 2
26 — — — — — — — 1987 9–16 36.0% — 1,623 0 2
27 — — — — — — — 1988 12–17 41.4% — 1,613 0 2
28 — — — — — — — 1989 6–14 30.0% — 1,576 0 2
29 — — — — — — — 1990 10–15 40.0% — 1,590 0 2
30 — — — — — — — 1991 12–16 42.9% — 1,614 0 2
31 — — — — — — — 1992 1–7 12.5% — 1,545 0 2
33 — — — — — — — 1994 0–1 0.0% — 1,536 0 2

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 Barbara Gerken 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 %
13 — — — — — — — — — — — — — — — — — 1974 2 1 3 66.7% — — — — — — — — — — — —
15 — — — — — — — — — — — — — — — — — 1976 — — — — 0 1 1 0.0% 1 1 2 50.0% — — — —
16 1981 4 1 5 80.0% — — — — — — — — — — — — 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
17 1982 1 3 4 25.0% 0 1 1 0.0% 0 1 1 0.0% — — — — 1978 4 5 9 44.4% 3 3 6 50.0% — — — — 0 4 4 0.0%
18 1983 3 2 5 60.0% 1 1 2 50.0% — — — — 1 1 2 50.0% 1979 2 6 8 25.0% 0 1 1 0.0% 0 1 1 0.0% 2 5 7 28.6%
19 1984 3 6 9 33.3% 4 6 10 40.0% 2 4 6 33.3% — — — — 1980 7 8 15 46.7% 3 2 5 60.0% 5 2 7 71.4% 7 11 18 38.9%
20 1985 3 10 13 23.1% 0 1 1 0.0% 3 6 9 33.3% 5 5 10 50.0% 1981 5 7 12 41.7% 1 1 2 50.0% 1 2 3 33.3% 9 10 19 47.4%
21 1986 5 8 13 38.5% 0 4 4 0.0% 2 2 4 50.0% 5 4 9 55.6% 1982 4 6 10 40.0% 2 1 3 66.7% 0 2 2 0.0% 3 9 12 25.0%
22 1987 13 11 24 54.2% — — — — 0 4 4 0.0% 3 4 7 42.9% 1983 5 5 10 50.0% — — — — — — — — 2 5 7 28.6%
23 1988 1 6 7 14.3% — — — — 0 3 3 0.0% 1 1 2 50.0% 1984 14 9 23 60.9% 0 1 1 0.0% 1 3 4 25.0% 3 4 7 42.9%
24 1989 0 1 1 0.0% — — — — — — — — — — — — 1985 18 9 27 66.7% 0 2 2 0.0% 2 2 4 50.0% 9 5 14 64.3%
25 — — — — — — — — — — — — — — — — — 1986 8 7 15 53.3% — — — — 1 2 3 33.3% 3 8 11 27.3%
26 — — — — — — — — — — — — — — — — — 1987 6 8 14 42.9% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0%
27 — — — — — — — — — — — — — — — — — 1988 8 11 19 42.1% 1 1 2 50.0% 0 2 2 0.0% 3 3 6 50.0%
28 — — — — — — — — — — — — — — — — — 1989 3 9 12 25.0% — — — — 2 3 5 40.0% 1 2 3 33.3%
29 — — — — — — — — — — — — — — — — — 1990 8 10 18 44.4% — — — — 0 2 2 0.0% 2 3 5 40.0%
30 — — — — — — — — — — — — — — — — — 1991 9 11 20 45.0% — — — — 1 2 3 33.3% 2 3 5 40.0%
31 — — — — — — — — — — — — — — — — — 1992 1 5 6 16.7% — — — — — — — — 0 2 2 0.0%
33 — — — — — — — — — — — — — — — — — 1994 0 1 1 0.0% — — — — — — — — — — — —
Career — 33 48 81 40.7% 5 13 18 27.8% 7 20 27 25.9% 15 15 30 50.0% — 104 118 222 46.8% 10 16 26 38.5% 16 27 43 37.2% 47 78 125 37.6%

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 Barbara Gerken 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
13 — — — — — — — — — — — — — — — — 1974 1524 102.4 — — — — +72 — — 57.1% +0.29 1–0 1–0 — +0.56
15 — — — — — — — — — — — — — — — — 1976 1522 100.6 — — — — — — — 42.9% -0.57 0–1 — — +0.36
16 1981 1632 123.6 — — — — +57 — — 73.7% +1.32 1–0 2–0 — +0.08 1977 1520 116.3 — — — — — — — 0.0% -3.50 — 0–1 — -0.35
17 1982 1578 105.6 — — — — +37 — — 33.3% -1.67 0–3 (0%) — — +0.21 1978 1589 122.4 — — — — +31 -31 — 34.1% -1.25 5–1 (83%) 2–1 (67%) 108.1 -0.33
18 1983 1618 117.4 — — — — +40 — — 52.2% +0.91 3–2 (60%) 0–2 — +1.04 1979 1568 121.3 — — — — +25 — — 30.0% -1.90 2–4 (33%) 2–1 (67%) — +0.42
19 1984 1581 114.0 — — — — +14 +6 -7 41.2% -0.51 0–3 (0%) 1–6 (14%) 91.5 +0.85 1980 1714 128.5 — — — — -41 -153 -36 46.2% -0.59 12–4 (75%) 2–6 (25%) 107.6 +1.57
20 1985 1577 122.8 — — — — +20 — -44 38.9% -0.56 2–6 (25%) 4–6 (40%) 96.8 +0.89 1981 1743 134.3 — — — — -2 — -72 42.7% -0.51 7–5 (58%) 4–2 (67%) 105.0 -1.63
21 1986 1564 106.0 — — — — +19 -88 -13 42.9% -0.56 4–6 (40%) 3–4 (43%) 98.1 +4.32 1982 1655 124.8 — — — — -27 -46 — 35.5% -1.06 4–4 (50%) 1–2 (33%) 99.6 -1.27
22 1987 1635 119.2 — — — — +37 — -173 48.8% -0.23 5–7 (42%) 2–3 (40%) 98.1 +2.60 1983 1671 132.0 — — — — -14 — — 42.9% -0.43 2–1 (67%) 1–2 (33%) 100.4 -0.99
23 1988 1528 96.1 — — — — +42 — -126 25.9% -1.96 0–3 (0%) 0–2 — +0.93 1984 1733 127.5 — — — — +24 — -94 48.8% -0.05 7–3 (70%) 2–3 (40%) 105.0 +0.67
24 1989 1508 96.1 — — — — — — — 0.0% -2.50 — — — +0.30 1985 1777 143.7 — — — — +52 — -157 58.5% +0.41 8–4 (67%) 5–5 (50%) 101.8 -0.01
25 — — — — — — — — — — — — — — — — 1986 1680 121.2 — — — — +20 — -65 39.1% -0.55 5–3 (63%) 2–5 (29%) 97.5 +1.39
26 — — — — — — — — — — — — — — — — 1987 1624 119.5 — — — — +6 — -17 38.6% -0.67 3–4 (43%) 1–1 — +0.33
27 — — — — — — — — — — — — — — — — 1988 1614 129.1 — — — — +11 — — 43.3% -0.43 4–5 (44%) 5–4 (56%) 100.4 -0.29
28 — — — — — — — — — — — — — — — — 1989 1576 117.3 — — — — -17 — -21 32.0% -1.38 6–4 (60%) 6–1 (86%) 107.4 -1.33
29 — — — — — — — — — — — — — — — — 1990 1590 128.4 — — — — +10 — — 45.8% -0.14 2–7 (22%) 1–3 (25%) 94.5 +0.31
30 — — — — — — — — — — — — — — — — 1991 1615 127.2 — — — — -4 — -50 39.4% -0.53 8–4 (67%) 4–4 (50%) 105.2 +0.46
31 — — — — — — — — — — — — — — — — 1992 1545 105.4 — — — — -7 — — 25.0% -1.81 0–2 1–0 — -0.11
33 — — — — — — — — — — — — — — — — 1994 1537 103.8 — — — — — — — 0.0% -2.50 — 0–1 — -0.17
Career — 1650 118.4 — — — — +29 -21 -60 43.5% -0.45 15–30 (33%) 12–23 (34%) 88.2 +6.97 — 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.