Mareen Louie Harper
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Chris Evert | 0 | 9 | 9 | Jun 28, 1989 | H2H |
| Laura Arraya | 3 | 5 | 8 | Jan 31, 1992 | H2H |
| Wendy Turnbull | 2 | 6 | 8 | Aug 13, 1986 | H2H |
| Pam Shriver | 0 | 7 | 7 | Feb 24, 1992 | H2H |
| Anne Smith | 1 | 5 | 6 | Nov 1, 1990 | H2H |
H2H data updated: 2026-09-12 00:00 UTC
Mareen Louie Harper vs Li Lan Duan H2H: 1-0
Mareen Louie Harper holds a 1–0 lead over Li Lan Duan in their WTA head-to-head. Across 1 main-draw meeting, Mareen Louie Harper leads 1–0 on hard courts. Most recently, Mareen Louie Harper won the 1980 Tokyo Japan Open round of 32 6-4 6-1.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Mareen Louie Harper | 6-4 6-1 | Li Lan Duan | Match data | Oct 23, 1980* | R32 | Tokyo Japan Open | WTA 250 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mareen Louie Harper | — | — | — | 1,910 | 177 | 239 | 42.5% | 0 | 0 | 0 | 0 | 2 | 2 |
| Li Lan Duan | — | — | — | 1,528 | 3 | 3 | 50.0% | 0 | 0 | 0 | 0 | 0 | 0 |
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.
| Mareen Louie Harper | Li Lan Duan | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1974 | 2–1 | 66.7% | — | 1,523 | 0 | 0 | 1980 | 3–3 | 50.0% | — | 1,513 | 0 | 0 |
| 1976 | 1–2 | 33.3% | — | 1,521 | 0 | 0 | — | — | — | — | — | — | — |
| 1977 | 0–2 | 0.0% | — | 1,519 | 0 | 0 | — | — | — | — | — | — | — |
| 1978 | 7–12 | 36.8% | — | 1,588 | 0 | 0 | — | — | — | — | — | — | — |
| 1979 | 4–13 | 23.5% | — | 1,568 | 0 | 0 | — | — | — | — | — | — | — |
| 1980 | 22–23 | 48.9% | — | 1,714 | 0 | 0 | — | — | — | — | — | — | — |
| 1981 | 16–20 | 44.4% | — | 1,743 | 0 | 0 | — | — | — | — | — | — | — |
| 1982 | 9–18 | 33.3% | — | 1,654 | 0 | 0 | — | — | — | — | — | — | — |
| 1983 | 7–10 | 41.2% | — | 1,671 | 0 | 0 | — | — | — | — | — | — | — |
| 1984 | 18–17 | 51.4% | — | 1,733 | 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.
| Mareen Louie Harper | Li Lan Duan | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | ||||||||||||||||||||||||
| 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 % | ||
| 1974 | 2 | 1 | 3 | 66.7% | — | — | — | — | — | — | — | — | — | — | — | — | 1980 | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
| 1976 | — | — | — | — | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | — | — | — | — | 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% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 2 | 6 | 8 | 25.0% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 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 | 1 | 2 | 50.0% | 1 | 2 | 3 | 33.3% | 9 | 10 | 19 | 47.4% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | 4 | 6 | 10 | 40.0% | 2 | 1 | 3 | 66.7% | 0 | 2 | 2 | 0.0% | 3 | 9 | 12 | 25.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 5 | 5 | 10 | 50.0% | — | — | — | — | — | — | — | — | 2 | 5 | 7 | 28.6% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | 14 | 9 | 23 | 60.9% | 0 | 1 | 1 | 0.0% | 1 | 3 | 4 | 25.0% | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 104 | 118 | 222 | 46.8% | 10 | 16 | 26 | 38.5% | 16 | 27 | 43 | 37.2% | 47 | 78 | 125 | 37.6% | Career | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — |
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.
| Mareen Louie Harper | Li Lan Duan | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 1974 | 1524 | 102.4 | — | — | — | — | +72 | — | — | 57.1% | +0.29 | 1–0 | 1–0 | — | +0.56 | 1980 | 1513 | 103.1 | — | — | — | — | — | — | — | 53.8% | +0.23 | 0–1 | 0–1 | — | +0.11 |
| 1976 | 1522 | 100.6 | — | — | — | — | — | — | — | 42.9% | -0.57 | 0–1 | — | — | +0.36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1977 | 1520 | 116.3 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | 0–1 | — | -0.35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1978 | 1589 | 122.4 | — | — | — | — | +31 | -31 | — | 34.1% | -1.25 | 5–1 (83%) | 2–1 (67%) | 108.1 | -0.33 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1979 | 1568 | 121.3 | — | — | — | — | +25 | — | — | 30.0% | -1.90 | 2–4 (33%) | 2–1 (67%) | — | +0.42 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1980 | 1714 | 128.5 | — | — | — | — | -41 | -153 | -36 | 46.2% | -0.59 | 12–4 (75%) | 2–6 (25%) | 107.6 | +1.57 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1981 | 1743 | 134.3 | — | — | — | — | -2 | — | -72 | 42.7% | -0.51 | 7–5 (58%) | 4–2 (67%) | 105.0 | -1.63 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1982 | 1655 | 124.8 | — | — | — | — | -27 | -46 | — | 35.5% | -1.06 | 4–4 (50%) | 1–2 (33%) | 99.6 | -1.27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1983 | 1671 | 132.0 | — | — | — | — | -14 | — | — | 42.9% | -0.43 | 2–1 (67%) | 1–2 (33%) | 100.4 | -0.99 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 1984 | 1733 | 127.5 | — | — | — | — | +24 | — | -94 | 48.8% | -0.05 | 7–3 (70%) | 2–3 (40%) | 105.0 | +0.67 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | 1911 | 135.2 | — | — | — | — | +7 | -78 | -59 | 42.4% | -0.57 | 76–56 (58%) | 40–42 (49%) | 107.5 | -0.10 | Career | 1529 | 101.9 | — | — | — | — | — | — | — | 53.8% | +0.23 | 0–1 | 0–1 | — | +1.83 |
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.
Li Lan Duan
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Li Qiao Yu | 1 | 1 | 2 | Nov 17, 1980 | H2H |
| Duk Hee Lee | 1 | 0 | 1 | Nov 16, 1980 | H2H |
| Lili Bell | 1 | 0 | 1 | Nov 15, 1980 | H2H |
| Mareen Louie Harper | 0 | 1 | 1 | Oct 23, 1980 | H2H |
| Barbara Jordan | 0 | 1 | 1 | Oct 17, 1980 | H2H |