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

Ann Grossman vs Mareen Louie Harper H2H: 1-0

Ann Grossman holds a 1–0 lead over Mareen Louie Harper in their WTA head-to-head. Across 1 main-draw meeting, Ann Grossman leads 1–0 on hard courts. Most recently, Ann Grossman won the 1990 US Open round of 128 2-6 6-4 6-4.

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Ann Grossman
USA Age 55 Right-Handed 180 cm / 5'11"
H2H
1 – 0
1 main-draw meetings
Mareen Louie Harper
USA Age 66

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ann Grossman #48 2-6 6-4 6-4 Mareen Louie Harper Match data Aug 29, 1990* R128 US Open Grand Slam Hard

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
Ann Grossman #343 #29 384 1,887 187 185 50.3% 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 Ann Grossman 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 1987 0–1 0.0% #378 1,497 0 0 1977 0–2 0.0% — 1,519 0 0
17 1988 15–12 55.6% #48 1,699 0 0 1978 7–12 36.8% — 1,588 0 0
18 1989 23–20 53.5% #54 1,736 0 0 1979 4–13 23.5% — 1,568 0 0
19 1990 23–22 51.1% #50 1,748 0 0 1980 22–23 48.9% — 1,714 0 0
20 1991 12–19 38.7% #89 1,638 0 0 1981 16–20 44.4% — 1,743 0 0
21 1992 23–17 57.5% #36 1,733 0 0 1982 9–18 33.3% — 1,654 0 0
22 1993 30–19 61.2% #35 1,804 0 0 1983 7–10 41.2% — 1,671 0 0
23 1994 27–21 56.2% #37 1,853 0 0 1984 18–17 51.4% — 1,733 0 1
24 1995 12–19 38.7% #88 1,681 0 0 1985 29–18 61.7% — 1,776 0 2
25 1996 10–14 41.7% #72 1,665 0 0 1986 12–17 41.4% — 1,679 0 2
26 1997 10–17 37.0% #75 1,615 0 0 1987 9–16 36.0% — 1,623 0 2
27 1998 2–4 33.3% #283 1,595 0 0 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 Ann Grossman 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 1987 0 1 1 0.0% — — — — — — — — — — — — 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
17 1988 13 11 24 54.2% — — — — — — — — 2 1 3 66.7% 1978 4 5 9 44.4% 3 3 6 50.0% — — — — 0 4 4 0.0%
18 1989 16 11 27 59.3% 7 6 13 53.8% 0 2 2 0.0% 0 1 1 0.0% 1979 2 6 8 25.0% 0 1 1 0.0% 0 1 1 0.0% 2 5 7 28.6%
19 1990 9 12 21 42.9% 12 7 19 63.2% 1 1 2 50.0% 1 2 3 33.3% 1980 7 8 15 46.7% 3 2 5 60.0% 5 2 7 71.4% 7 11 18 38.9%
20 1991 4 11 15 26.7% 6 6 12 50.0% 1 1 2 50.0% 1 1 2 50.0% 1981 5 7 12 41.7% 1 1 2 50.0% 1 2 3 33.3% 9 10 19 47.4%
21 1992 15 8 23 65.2% 5 6 11 45.5% — — — — 3 3 6 50.0% 1982 4 6 10 40.0% 2 1 3 66.7% 0 2 2 0.0% 3 9 12 25.0%
22 1993 21 12 33 63.6% 4 3 7 57.1% 1 1 2 50.0% 4 3 7 57.1% 1983 5 5 10 50.0% — — — — — — — — 2 5 7 28.6%
23 1994 16 10 26 61.5% 9 7 16 56.3% 2 1 3 66.7% 0 3 3 0.0% 1984 14 9 23 60.9% 0 1 1 0.0% 1 3 4 25.0% 3 4 7 42.9%
24 1995 5 10 15 33.3% 6 8 14 42.9% 1 1 2 50.0% — — — — 1985 18 9 27 66.7% 0 2 2 0.0% 2 2 4 50.0% 9 5 14 64.3%
25 1996 8 9 17 47.1% 2 4 6 33.3% 0 1 1 0.0% — — — — 1986 8 7 15 53.3% — — — — 1 2 3 33.3% 3 8 11 27.3%
26 1997 3 9 12 25.0% 7 7 14 50.0% 0 1 1 0.0% — — — — 1987 6 8 14 42.9% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0%
27 1998 1 2 3 33.3% 1 2 3 33.3% — — — — — — — — 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 — 111 106 217 51.2% 59 56 115 51.3% 6 9 15 40.0% 11 14 25 44.0% — 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 Ann Grossman 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 1987 1497 101.9 — — — — — — — 0.0% -4.00 — — — -0.15 1977 1520 116.3 — — — — — — — 0.0% -3.50 — 0–1 — -0.35
17 1988 1699 133.9 — — — — +28 — — 54.1% +0.13 4–3 (57%) 0–5 (0%) 100.1 +0.16 1978 1589 122.4 — — — — +31 -31 — 34.1% -1.25 5–1 (83%) 2–1 (67%) 108.1 -0.33
18 1989 1737 136.2 — — — — +43 -89 — 52.5% +0.05 8–7 (53%) 4–5 (44%) 101.2 -1.22 1979 1568 121.3 — — — — +25 — — 30.0% -1.90 2–4 (33%) 2–1 (67%) — +0.42
19 1990 1749 136.3 — — — — -12 +8 — 51.0% +0.02 7–7 (50%) 2–4 (33%) — -1.48 1980 1714 128.5 — — — — -41 -153 -36 46.2% -0.59 12–4 (75%) 2–6 (25%) 107.6 +1.57
20 1991 1638 126.7 — — — — -16 +89 — 44.3% +0.06 3–7 (30%) 2–6 (25%) 91.9 +0.49 1981 1743 134.3 — — — — -2 — -72 42.7% -0.51 7–5 (58%) 4–2 (67%) 105.0 -1.63
21 1992 1733 132.9 — — — — +24 -9 — 52.9% -0.03 6–3 (67%) 6–1 (86%) 108.7 +1.73 1982 1655 124.8 — — — — -27 -46 — 35.5% -1.06 4–4 (50%) 1–2 (33%) 99.6 -1.27
22 1993 1805 140.5 — — — — +9 -60 — 59.6% +0.62 6–7 (46%) 6–3 (67%) 103.6 +0.77 1983 1671 132.0 — — — — -14 — — 42.9% -0.43 2–1 (67%) 1–2 (33%) 100.4 -0.99
23 1994 1853 146.2 — — — — 0 -73 -249 53.6% -0.01 10–6 (63%) 5–2 (71%) 107.3 -1.02 1984 1733 127.5 — — — — +24 — -94 48.8% -0.05 7–3 (70%) 2–3 (40%) 105.0 +0.67
24 1995 1681 123.7 — — — — +38 +44 — 40.8% -0.46 4–5 (44%) 3–9 (25%) 92.7 +0.33 1985 1777 143.7 — — — — +52 — -157 58.5% +0.41 8–4 (67%) 5–5 (50%) 101.8 -0.01
25 1996 1666 130.2 — — — — +49 +8 — 42.9% -0.62 4–4 (50%) 0–2 — -0.99 1986 1680 121.2 — — — — +20 — -65 39.1% -0.55 5–3 (63%) 2–5 (29%) 97.5 +1.39
26 1997 1615 123.7 — — — — +26 +98 — 38.6% -1.25 1–4 (20%) 2–2 (50%) 97.1 -0.41 1987 1624 119.5 — — — — +6 — -17 38.6% -0.67 3–4 (43%) 1–1 — +0.33
27 1998 1595 103.2 — — — — +41 +76 — 33.3% -1.58 — 1–0 — +0.11 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 — 1888 140.3 — — — — +18 +6 -249 49.9% -0.10 53–53 (50%) 31–39 (44%) 99.5 -0.45 — 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.