H2H data updated: 2026-07-19 14:15 UTC
Mareen Louie Harper vs Sonoe Yonezawa H2H: 1-0
Mareen Louie Harper holds a 1–0 lead over Sonoe Yonezawa 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 1978 US Open second round 5-7 7-6 6-1.
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H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Sep 1, 1978* | US Open | Grand Slam | R64 | Hard | Mareen Louie Harper | 5-7 7-6 6-1 | Sonoe Yonezawa | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mareen Louie Harper | — | — | — | 1,911 | 177 | 239 | 42.5% | 0 | 0 | 0 | 0 | 2 | 2 |
| Sonoe Yonezawa | — | — | — | 1,554 | 14 | 23 | 37.8% | 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.
| Age | Mareen Louie Harper | Sonoe Yonezawa | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 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 | — | — | — | — | — | — | — |
| 18 | 1979 | 4–13 | 23.5% | — | 1,567 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1980 | 22–23 | 48.9% | — | 1,715 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | 1981 | 16–20 | 44.4% | — | 1,743 | 0 | 0 | — | — | — | — | — | — | — |
| 21 | 1982 | 9–18 | 33.3% | — | 1,654 | 0 | 0 | — | — | — | — | — | — | — |
| 22 | 1983 | 7–10 | 41.2% | — | 1,670 | 0 | 0 | — | — | — | — | — | — | — |
| 23 | 1984 | 18–17 | 51.4% | — | 1,733 | 0 | 1 | — | — | — | — | — | — | — |
| 24 | 1985 | 29–18 | 61.7% | — | 1,777 | 0 | 2 | — | — | — | — | — | — | — |
| 25 | 1986 | 12–17 | 41.4% | — | 1,680 | 0 | 2 | — | — | — | — | — | — | — |
| 26 | 1987 | 9–16 | 36.0% | — | 1,625 | 0 | 2 | — | — | — | — | — | — | — |
| 27 | 1988 | 12–17 | 41.4% | — | 1,614 | 0 | 2 | — | — | — | — | — | — | — |
| 28 | 1989 | 6–14 | 30.0% | — | 1,577 | 0 | 2 | — | — | — | — | — | — | — |
| 29 | 1990 | 10–15 | 40.0% | — | 1,591 | 0 | 2 | 1978 | 5–8 | 38.5% | — | 1,520 | 0 | 0 |
| 30 | 1991 | 12–16 | 42.9% | — | 1,615 | 0 | 2 | 1979 | 1–2 | 33.3% | — | 1,514 | 0 | 0 |
| 31 | 1992 | 1–7 | 12.5% | — | 1,546 | 0 | 2 | 1980 | 8–9 | 47.1% | — | 1,544 | 0 | 0 |
| 32 | — | — | — | — | — | — | — | 1981 | 0–2 | 0.0% | — | 1,515 | 0 | 0 |
| 33 | 1994 | 0–1 | 0.0% | — | 1,537 | 0 | 2 | — | — | — | — | — | — | — |
| 34 | — | — | — | — | — | — | — | 1983 | 0–2 | 0.0% | — | 1,487 | 0 | 0 |