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

Steffi Graf vs Mareen Louie Harper H2H: 1-0

Steffi Graf holds a 1–0 lead over Mareen Louie Harper in their WTA head-to-head. Across 1 main-draw meeting, Steffi Graf leads 1–0 on grass. Most recently, Steffi Graf won the 1991 Wimbledon round of 64 6-0 6-1.

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Steffi Graf
GER Age 57 Right-Handed 176 cm / 5'9"
H2H
1 – 0
1 main-draw meetings
Mareen Louie Harper
USA Age 66

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Steffi Graf #2 6-0 6-1 Mareen Louie Harper Match data Jun 28, 1991* R64 Wimbledon Grand Slam Grass

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 Olympics 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Steffi Graf #3 #1 5,028 2,603 876 110 88.8% 22 1 15 5 32 32 107
Mareen Louie Harper — — — 1,910 177 239 42.5% 0 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 Steffi Graf Mareen Louie Harper
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
12 1981 1–1 50.0% — 1,502 0 0 — — — — — — —
13 1982 2–4 33.3% — 1,507 0 0 1974 2–1 66.7% — 1,523 0 0
14 1983 6–7 46.2% — 1,545 0 0 — — — — — — —
15 1984 17–13 56.7% #22 1,748 0 0 1976 1–2 33.3% — 1,521 0 0
16 1985 40–13 75.5% #6 2,038 0 0 1977 0–2 0.0% — 1,519 0 0
17 1986 63–6 91.3% #3 2,322 0 8 1978 7–12 36.8% — 1,588 0 0
18 1987 70–2 97.2% #1 2,505 1 19 1979 4–13 23.5% — 1,568 0 0
19 1988 73–3 96.1% #1 2,539 5 30 1980 22–23 48.9% — 1,714 0 0
20 1989 85–2 97.7% #1 2,588 8 44 1981 16–20 44.4% — 1,743 0 0
21 1990 72–5 93.5% #1 2,512 9 54 1982 9–18 33.3% — 1,654 0 0
22 1991 64–8 88.9% #2 2,420 10 61 1983 7–10 41.2% — 1,671 0 0
23 1992 66–7 90.4% #2 2,434 11 69 1984 18–17 51.4% — 1,733 0 1
24 1993 77–5 93.9% #1 2,506 14 79 1985 29–18 61.7% — 1,776 0 2
25 1994 58–6 90.6% #1 2,414 15 86 1986 12–17 41.4% — 1,679 0 2
26 1995 48–2 96.0% #1 2,464 18 95 1987 9–16 36.0% — 1,623 0 2
27 1996 51–4 92.7% #1 2,475 21 102 1988 12–17 41.4% — 1,613 0 2
28 1997 16–4 80.0% #28 2,400 21 103 1989 6–14 30.0% — 1,576 0 2
29 1998 33–9 78.6% #9 2,305 21 106 1990 10–15 40.0% — 1,590 0 2
30 1999 34–9 79.1% #3 2,242 22 107 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 Steffi Graf 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 %
12 1981 — — — — — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — —
13 1982 — — — — 2 3 5 40.0% — — — — 0 1 1 0.0% 1974 2 1 3 66.7% — — — — — — — — — — — —
14 1983 1 1 2 50.0% 2 2 4 50.0% 2 3 5 40.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
15 1984 5 3 8 62.5% 5 5 10 50.0% 7 4 11 63.6% 0 1 1 0.0% 1976 — — — — 0 1 1 0.0% 1 1 2 50.0% — — — —
16 1985 19 6 25 76.0% 14 4 18 77.8% 3 1 4 75.0% 4 2 6 66.7% 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
17 1986 20 3 23 87.0% 24 1 25 96.0% — — — — 19 2 21 90.5% 1978 4 5 9 44.4% 3 3 6 50.0% — — — — 0 4 4 0.0%
18 1987 23 1 24 95.8% 32 0 32 100.0% 6 1 7 85.7% 9 0 9 100.0% 1979 2 6 8 25.0% 0 1 1 0.0% 0 1 1 0.0% 2 5 7 28.6%
19 1988 39 1 40 97.5% 20 1 21 95.2% 7 0 7 100.0% 7 1 8 87.5% 1980 7 8 15 46.7% 3 2 5 60.0% 5 2 7 71.4% 7 11 18 38.9%
20 1989 39 0 39 100.0% 25 2 27 92.6% 7 0 7 100.0% 14 0 14 100.0% 1981 5 7 12 41.7% 1 1 2 50.0% 1 2 3 33.3% 9 10 19 47.4%
21 1990 23 1 24 95.8% 20 2 22 90.9% 5 1 6 83.3% 24 1 25 96.0% 1982 4 6 10 40.0% 2 1 3 66.7% 0 2 2 0.0% 3 9 12 25.0%
22 1991 22 4 26 84.6% 19 2 21 90.5% 7 0 7 100.0% 16 2 18 88.9% 1983 5 5 10 50.0% — — — — — — — — 2 5 7 28.6%
23 1992 13 2 15 86.7% 25 3 28 89.3% 7 0 7 100.0% 21 2 23 91.3% 1984 14 9 23 60.9% 0 1 1 0.0% 1 3 4 25.0% 3 4 7 42.9%
24 1993 33 2 35 94.3% 21 1 22 95.5% 7 0 7 100.0% 16 2 18 88.9% 1985 18 9 27 66.7% 0 2 2 0.0% 2 2 4 50.0% 9 5 14 64.3%
25 1994 38 2 40 95.0% 14 2 16 87.5% 0 1 1 0.0% 6 1 7 85.7% 1986 8 7 15 53.3% — — — — 1 2 3 33.3% 3 8 11 27.3%
26 1995 22 1 23 95.7% 11 0 11 100.0% 7 0 7 100.0% 8 1 9 88.9% 1987 6 8 14 42.9% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0%
27 1996 21 1 22 95.5% 14 1 15 93.3% 7 0 7 100.0% 9 2 11 81.8% 1988 8 11 19 42.1% 1 1 2 50.0% 0 2 2 0.0% 3 3 6 50.0%
28 1997 3 1 4 75.0% 10 2 12 83.3% — — — — 3 1 4 75.0% 1989 3 9 12 25.0% — — — — 2 3 5 40.0% 1 2 3 33.3%
29 1998 14 5 19 73.7% — — — — 6 2 8 75.0% 13 2 15 86.7% 1990 8 10 18 44.4% — — — — 0 2 2 0.0% 2 3 5 40.0%
30 1999 15 5 20 75.0% 9 1 10 90.0% 6 1 7 85.7% 4 2 6 66.7% 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 — 350 39 389 90.0% 267 32 299 89.3% 84 14 98 85.7% 175 25 200 87.5% — 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 Steffi Graf 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
12 1981 1502 99.4 — — — — — — — 60.0% 0.00 0–1 — — +0.64 — — — — — — — — — — — — — — — —
13 1982 1507 121.5 — — — — — +26 — 38.5% -0.62 0–1 — — +0.12 1974 1524 102.4 — — — — +72 — — 57.1% +0.29 1–0 1–0 — +0.56
14 1983 1546 109.1 — — — — +59 +52 +29 48.1% -0.15 2–1 (67%) 2–1 (67%) — +1.35 — — — — — — — — — — — — — — — —
15 1984 1748 139.6 — — — — -68 -81 -28 51.4% +0.26 9–3 (75%) 3–2 (60%) 111.2 -0.41 1976 1522 100.6 — — — — — — — 42.9% -0.57 0–1 — — +0.36
16 1985 2038 163.0 — — — — -73 -131 -289 69.6% +1.45 9–4 (69%) 10–3 (77%) 110.8 -2.74 1977 1520 116.3 — — — — — — — 0.0% -3.50 — 0–1 — -0.35
17 1986 2322 176.8 — — — — -62 -128 — 80.5% +2.45 17–3 (85%) 6–7 (46%) 110.7 -5.94 1978 1589 122.4 — — — — +31 -31 — 34.1% -1.25 5–1 (83%) 2–1 (67%) 108.1 -0.33
18 1987 2505 181.5 — — — — -48 -84 -637 90.8% +3.42 9–0 (100%) 3–3 (50%) 107.5 -4.82 1979 1568 121.3 — — — — +25 — — 30.0% -1.90 2–4 (33%) 2–1 (67%) — +0.42
19 1988 2540 181.5 — — — — -7 -92 -528 91.8% +3.75 7–2 (78%) 4–2 (67%) 102.5 -1.98 1980 1714 128.5 — — — — -41 -153 -36 46.2% -0.59 12–4 (75%) 2–6 (25%) 107.6 +1.57
20 1989 2588 183.5 — — — — +30 -140 -492 93.4% +3.80 7–2 (78%) 2–2 (50%) 102.4 -1.81 1981 1743 134.3 — — — — -2 — -72 42.7% -0.51 7–5 (58%) 4–2 (67%) 105.0 -1.63
21 1990 2512 178.9 — — — — +89 -52 -324 89.0% +3.13 8–1 (89%) 5–6 (45%) 98.6 -0.44 1982 1655 124.8 — — — — -27 -46 — 35.5% -1.06 4–4 (50%) 1–2 (33%) 99.6 -1.27
22 1991 2420 177.1 — — — — +72 +83 -183 86.8% +3.10 4–5 (44%) 6–6 (50%) 92.3 -0.99 1983 1671 132.0 — — — — -14 — — 42.9% -0.43 2–1 (67%) 1–2 (33%) 100.4 -0.99
23 1992 2435 179.0 — — — — +24 +66 -41 82.0% +2.69 16–5 (76%) 6–5 (55%) 99.7 -1.85 1984 1733 127.5 — — — — +24 — -94 48.8% -0.05 7–3 (70%) 2–3 (40%) 105.0 +0.67
24 1993 2506 183.0 — — — — -28 +45 -107 86.5% +2.91 13–3 (81%) 8–2 (80%) 107.4 -3.07 1985 1777 143.7 — — — — +52 — -157 58.5% +0.41 8–4 (67%) 5–5 (50%) 101.8 -0.01
25 1994 2415 179.9 — — — — +25 +40 — 86.0% +3.10 7–3 (70%) 3–7 (30%) 93.7 -1.05 1986 1680 121.2 — — — — +20 — -65 39.1% -0.55 5–3 (63%) 2–5 (29%) 97.5 +1.39
26 1995 2465 178.3 — — — — +6 +52 -61 87.4% +2.78 8–2 (80%) 3–3 (50%) 102.0 -1.58 1987 1624 119.5 — — — — +6 — -17 38.6% -0.67 3–4 (43%) 1–1 — +0.33
27 1996 2475 176.2 — — — — -6 +55 +63 89.5% +2.71 6–1 (86%) 8–2 (80%) 104.0 -1.13 1988 1614 129.1 — — — — +11 — — 43.3% -0.43 4–5 (44%) 5–4 (56%) 100.4 -0.29
28 1997 2400 149.1 — — — — +38 +70 — 75.0% +1.65 4–0 (100%) 2–1 (67%) — 0.00 1989 1576 117.3 — — — — -17 — -21 32.0% -1.38 6–4 (60%) 6–1 (86%) 107.4 -1.33
29 1998 2305 172.9 — — — — +58 — +169 74.5% +2.06 8–4 (67%) 4–3 (57%) 98.2 -1.13 1990 1590 128.4 — — — — +10 — — 45.8% -0.14 2–7 (22%) 1–3 (25%) 94.5 +0.31
30 1999 2243 171.2 — — — — -5 +219 +171 70.7% +1.82 13–4 (76%) 3–3 (50%) 98.9 -2.55 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 — 2604 181.8 — — — — +8 -20 -151 83.0% +2.71 147–45 (77%) 78–58 (57%) 106.9 -3.01 — 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.