H2H data updated: 2026-07-19 08:25 UTC

Sandy Collins vs Mareen Louie Harper H2H: 2-3

Mareen Louie Harper holds a 3–2 lead over Sandy Collins in their WTA head-to-head. Across 5 main-draw meetings, Mareen Louie Harper leads 2–1 on carpet, while they are tied 1–1 on hard courts. Most recently, Mareen Louie Harper won the 1990 Tokyo Pan Pacific third round 2-6 6-4 6-2.

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Sandy Collins
Age 67
H2H
2 – 3
5 main draw meetings
Mareen Louie Harper
Age 65

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Feb 1, 1990* Tokyo Pan Pacific WTA 250 R32 Carpet Mareen Louie Harper 2-6 6-4 6-2 Sandy Collins Match data
Mar 1, 1985* Hershey WTA 250 R16 Hard Mareen Louie Harper 6-2 6-2 Sandy Collins Match data
Aug 13, 1981* Richmond WTA 250 R32 Hard Sandy Collins 6-3 6-2 Mareen Louie Harper Match data
Feb 12, 1981* Oakland WTA 250 R32 Carpet Sandy Collins 6-4 7-6 Mareen Louie Harper Match data
Dec 20, 1980* Tucson WTA 250 SF Carpet Mareen Louie Harper 1-6 6-4 6-4 Sandy Collins Match data

* Estimated match date where the exact historical date is unavailable.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 Finals 500 250 Titles
Sandy Collins — — — 1,823 89 151 37.1% 0 0 0 0 0 0
Mareen Louie Harper — — — 1,911 177 239 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 Sandy Collins Mareen Louie Harper
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
13 — — — — — — — 1974 2–1 66.7% — 1,523 0 0
14 1973 1–1 50.0% — 1,497 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
18 — — — — — — — 1979 4–13 23.5% — 1,567 0 0
19 1978 6–6 50.0% — 1,537 0 0 1980 22–23 48.9% — 1,715 0 0
20 1979 2–7 22.2% — 1,495 0 0 1981 16–20 44.4% — 1,743 0 0
21 1980 10–12 45.5% — 1,626 0 0 1982 9–18 33.3% — 1,654 0 0
22 1981 25–20 55.6% — 1,786 0 0 1983 7–10 41.2% — 1,670 0 0
23 1982 14–21 40.0% — 1,756 0 0 1984 18–17 51.4% — 1,733 0 1
24 1983 13–20 39.4% — 1,690 0 0 1985 29–18 61.7% — 1,777 0 2
25 1984 9–18 33.3% — 1,602 0 0 1986 12–17 41.4% — 1,680 0 2
26 1985 1–9 10.0% — 1,509 0 0 1987 9–16 36.0% — 1,625 0 2
27 1986 0–1 0.0% — 1,501 0 0 1988 12–17 41.4% — 1,614 0 2
28 1987 0–4 0.0% — 1,454 0 0 1989 6–14 30.0% — 1,577 0 2
29 1988 3–5 37.5% — 1,492 0 0 1990 10–15 40.0% — 1,591 0 2
30 1989 2–8 20.0% — 1,474 0 0 1991 12–16 42.9% — 1,615 0 2
31 1990 1–9 10.0% — 1,422 0 0 1992 1–7 12.5% — 1,546 0 2
32 1991 1–5 16.7% — 1,407 0 0 — — — — — — —
33 1992 1–2 33.3% — 1,414 0 0 1994 0–1 0.0% — 1,537 0 2
34 1993 0–1 0.0% — 1,408 0 0 — — — — — — —
35 1994 0–2 0.0% — 1,394 0 0 — — — — — — —