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

Mareen Louie Harper vs Stacy Margolin H2H: 0-1

Stacy Margolin holds a 1–0 lead over Mareen Louie Harper in their WTA head-to-head. Across 1 main-draw meeting, Stacy Margolin leads 1–0 on carpet. Most recently, Stacy Margolin won the 1980 Richmond round of 32 6-1 6-4.

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

Mareen Louie Harper
USA Age 66
H2H
0 – 1
1 main-draw meetings
Stacy Margolin
USA Age 67

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Stacy Margolin 6-1 6-4 Mareen Louie Harper Match data Jul 24, 1980* R32 Richmond 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
Mareen Louie Harper — — — 1,910 177 239 42.5% 0 0 0 0 2 2
Stacy Margolin — — — 1,854 73 99 42.4% 0 0 0 0 4 4

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 Mareen Louie Harper Stacy Margolin
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 1977 0–2 0.0% — 1,519 0 0 — — — — — — —
17 1978 7–12 36.8% — 1,588 0 0 1976 2–1 66.7% — 1,523 0 1
18 1979 4–13 23.5% — 1,568 0 0 1977 1–5 16.7% — 1,504 0 2
19 1980 22–23 48.9% — 1,714 0 0 1978 16–5 76.2% — 1,781 0 4
20 1981 16–20 44.4% — 1,743 0 0 1979 12–20 37.5% — 1,753 0 4
21 1982 9–18 33.3% — 1,654 0 0 1980 25–26 49.0% — 1,774 0 4
22 1983 7–10 41.2% — 1,671 0 0 1981 11–20 35.5% — 1,696 0 4
23 1984 18–17 51.4% — 1,733 0 1 1982 4–14 22.2% — 1,541 0 4
24 1985 29–18 61.7% — 1,776 0 2 1983 2–5 28.6% — 1,518 0 4
25 1986 12–17 41.4% — 1,679 0 2 1984 0–1 0.0% — 1,512 0 4
26 1987 9–16 36.0% — 1,623 0 2 1985 0–2 0.0% — 1,479 0 4
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 Mareen Louie Harper Stacy Margolin
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 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
17 1978 4 5 9 44.4% 3 3 6 50.0% — — — — 0 4 4 0.0% 1976 1 0 1 100.0% — — — — — — — — 1 1 2 50.0%
18 1979 2 6 8 25.0% 0 1 1 0.0% 0 1 1 0.0% 2 5 7 28.6% 1977 0 2 2 0.0% 0 1 1 0.0% — — — — 1 2 3 33.3%
19 1980 7 8 15 46.7% 3 2 5 60.0% 5 2 7 71.4% 7 11 18 38.9% 1978 9 3 12 75.0% — — — — 1 1 2 50.0% — — — —
20 1981 5 7 12 41.7% 1 1 2 50.0% 1 2 3 33.3% 9 10 19 47.4% 1979 1 7 8 12.5% 1 2 3 33.3% 1 2 3 33.3% 9 9 18 50.0%
21 1982 4 6 10 40.0% 2 1 3 66.7% 0 2 2 0.0% 3 9 12 25.0% 1980 14 7 21 66.7% 0 2 2 0.0% 2 3 5 40.0% 9 14 23 39.1%
22 1983 5 5 10 50.0% — — — — — — — — 2 5 7 28.6% 1981 6 6 12 50.0% 1 3 4 25.0% 0 2 2 0.0% 4 9 13 30.8%
23 1984 14 9 23 60.9% 0 1 1 0.0% 1 3 4 25.0% 3 4 7 42.9% 1982 0 5 5 0.0% 2 5 7 28.6% 1 3 4 25.0% 1 1 2 50.0%
24 1985 18 9 27 66.7% 0 2 2 0.0% 2 2 4 50.0% 9 5 14 64.3% 1983 1 2 3 33.3% — — — — 1 2 3 33.3% — — — —
25 1986 8 7 15 53.3% — — — — 1 2 3 33.3% 3 8 11 27.3% 1984 0 1 1 0.0% — — — — — — — — — — — —
26 1987 6 8 14 42.9% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0% 1985 0 1 1 0.0% — — — — — — — — — — — —
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 — 104 118 222 46.8% 10 16 26 38.5% 16 27 43 37.2% 47 78 125 37.6% — 32 34 66 48.5% 4 13 17 23.5% 6 13 19 31.6% 25 36 61 41.0%

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 Mareen Louie Harper Stacy Margolin
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 1977 1520 116.3 — — — — — — — 0.0% -3.50 — 0–1 — -0.35 — — — — — — — — — — — — — — — —
17 1978 1589 122.4 — — — — +31 -31 — 34.1% -1.25 5–1 (83%) 2–1 (67%) 108.1 -0.33 1976 1524 94.1 — — — — +93 — — 50.0% -1.00 — — — +0.93
18 1979 1568 121.3 — — — — +25 — — 30.0% -1.90 2–4 (33%) 2–1 (67%) — +0.42 1977 1505 107.1 — — — — +54 — — 33.3% -1.00 0–2 0–3 (0%) — +0.64
19 1980 1714 128.5 — — — — -41 -153 -36 46.2% -0.59 12–4 (75%) 2–6 (25%) 107.6 +1.57 1978 1781 145.4 — — — — -10 — — 68.8% +1.56 4–2 (67%) 0–2 — +0.02
20 1981 1743 134.3 — — — — -2 — -72 42.7% -0.51 7–5 (58%) 4–2 (67%) 105.0 -1.63 1979 1753 143.1 — — — — -3 -222 -184 42.5% -0.05 2–7 (22%) 1–4 (20%) 92.8 -0.85
21 1982 1655 124.8 — — — — -27 -46 — 35.5% -1.06 4–4 (50%) 1–2 (33%) 99.6 -1.27 1980 1775 142.4 — — — — -13 — -189 48.6% -0.01 4–5 (44%) 6–6 (50%) 101.2 -1.56
22 1983 1671 132.0 — — — — -14 — — 42.9% -0.43 2–1 (67%) 1–2 (33%) 100.4 -0.99 1981 1696 121.6 — — — — +33 -201 — 40.3% -1.19 3–7 (30%) 3–1 (75%) 97.8 +0.05
23 1984 1733 127.5 — — — — +24 — -94 48.8% -0.05 7–3 (70%) 2–3 (40%) 105.0 +0.67 1982 1542 96.6 — — — — +49 -85 +26 27.9% -1.70 3–4 (43%) 1–2 (33%) 99.4 +0.55
24 1985 1777 143.7 — — — — +52 — -157 58.5% +0.41 8–4 (67%) 5–5 (50%) 101.8 -0.01 1983 1519 103.3 — — — — +70 — +32 37.5% -0.81 0–2 0–1 — +0.45
25 1986 1680 121.2 — — — — +20 — -65 39.1% -0.55 5–3 (63%) 2–5 (29%) 97.5 +1.39 1984 1512 99.5 — — — — — — — 33.3% -2.67 0–1 — — -0.14
26 1987 1624 119.5 — — — — +6 — -17 38.6% -0.67 3–4 (43%) 1–1 — +0.33 1985 1480 92.2 — — — — — — — 0.0% -3.25 — — — +0.25
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 — 1911 135.2 — — — — +7 -78 -59 42.4% -0.57 76–56 (58%) 40–42 (49%) 107.5 -0.10 — 1855 135.3 — — — — +9 -148 -86 44.5% -0.36 16–30 (35%) 11–19 (37%) 92.2 +0.20

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.