H2H data updated: 2026-10-27 00:00 UTC

Barbara Hallquist vs Mareen Louie Harper H2H: 1-0

Barbara Hallquist holds a 1–0 lead over Mareen Louie Harper in their WTA head-to-head. Across 1 main-draw meeting, Barbara Hallquist leads 1–0 on hard courts. Most recently, Barbara Hallquist won the 1978 Oldsmar round of 32 6-3 6-2.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Barbara Hallquist
USA Age 69
H2H
1 – 0
1 main-draw meetings
Mareen Louie Harper
USA Age 66

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Barbara Hallquist 6-3 6-2 Mareen Louie Harper Match data Nov 9, 1978* R32 Oldsmar 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
Barbara Hallquist — — — 1,778 67 90 42.7% 0 0 0 0 0 0
Mareen Louie Harper — — — 1,911 179 240 42.7% 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 Barbara Hallquist 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 1973 2–1 66.7% — 1,516 0 0 1977 0–2 0.0% — 1,519 0 0
17 1974 2–3 40.0% — 1,500 0 0 1978 9–13 40.9% — 1,599 0 0
18 1975 3–1 75.0% — 1,541 0 0 1979 4–13 23.5% — 1,575 0 0
19 1976 0–1 0.0% — 1,530 0 0 1980 22–23 48.9% — 1,719 0 0
20 1977 4–2 66.7% — 1,577 0 0 1981 16–20 44.4% — 1,745 0 0
21 1978 8–9 47.1% — 1,616 0 0 1982 9–18 33.3% — 1,656 0 0
22 1979 3–13 18.8% — 1,565 0 0 1983 7–10 41.2% — 1,672 0 0
23 1980 14–13 51.9% — 1,703 0 0 1984 18–17 51.4% — 1,734 0 1
24 1981 14–17 45.2% — 1,737 0 0 1985 29–18 61.7% — 1,777 0 2
25 1982 12–14 46.2% — 1,707 0 0 1986 12–17 41.4% — 1,680 0 2
26 1983 5–16 23.8% — 1,567 0 0 1987 9–16 36.0% — 1,623 0 2
27 — — — — — — — 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% — 1,537 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 Barbara Hallquist 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 1973 2 1 3 66.7% — — — — — — — — — — — — 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
17 1974 2 2 4 50.0% — — — — 0 1 1 0.0% — — — — 1978 6 6 12 50.0% 3 3 6 50.0% — — — — 0 4 4 0.0%
18 1975 — — — — — — — — 3 1 4 75.0% — — — — 1979 2 6 8 25.0% 0 1 1 0.0% 0 1 1 0.0% 2 5 7 28.6%
19 1976 — — — — 0 1 1 0.0% — — — — — — — — 1980 7 8 15 46.7% 3 2 5 60.0% 5 2 7 71.4% 7 11 18 38.9%
20 1977 — — — — 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 1978 3 4 7 42.9% 0 1 1 0.0% 1 2 3 33.3% — — — — 1982 4 6 10 40.0% 2 1 3 66.7% 0 2 2 0.0% 3 9 12 25.0%
22 1979 3 4 7 42.9% 0 1 1 0.0% 0 6 6 0.0% 0 2 2 0.0% 1983 5 5 10 50.0% — — — — — — — — 2 5 7 28.6%
23 1980 7 8 15 46.7% 2 2 4 50.0% 5 3 8 62.5% — — — — 1984 14 9 23 60.9% 0 1 1 0.0% 1 3 4 25.0% 3 4 7 42.9%
24 1981 7 6 13 53.8% — — — — 7 6 13 53.8% 0 5 5 0.0% 1985 18 9 27 66.7% 0 2 2 0.0% 2 2 4 50.0% 9 5 14 64.3%
25 1982 7 5 12 58.3% 0 3 3 0.0% 5 6 11 45.5% — — — — 1986 8 7 15 53.3% — — — — 1 2 3 33.3% 3 8 11 27.3%
26 1983 3 8 11 27.3% 0 3 3 0.0% 1 3 4 25.0% 1 2 3 33.3% 1987 6 8 14 42.9% 0 2 2 0.0% 2 3 5 40.0% 1 3 4 25.0%
27 — — — — — — — — — — — — — — — — — 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 — 34 38 72 47.2% 3 12 15 20.0% 22 28 50 44.0% 1 9 10 10.0% — 106 119 225 47.1% 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 Barbara Hallquist 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 — — +0.37
16 1973 1516 110.1 — — — — +80 — — 66.7% +2.33 — — — +0.83 1977 1520 116.0 — — — — — — — 0.0% -3.50 — 0–1 — -0.35
17 1974 1500 97.3 — — — — +94 — — 38.5% -0.85 2–1 (67%) 0–1 — +1.26 1978 1599 122.7 — — — — +32 -41 — 39.2% -0.96 5–2 (71%) 3–1 (75%) 107.4 +0.50
18 1975 1541 102.9 — — — — — — +36 60.0% +0.60 2–0 1–1 — +0.62 1979 1576 121.8 — — — — +27 — — 30.0% -1.90 2–4 (33%) 2–1 (67%) — +0.40
19 1976 1530 102.4 — — — — — — — 33.3% -1.00 0–1 — — +0.08 1980 1719 129.4 — — — — -38 -158 -41 46.2% -0.59 12–4 (75%) 2–6 (25%) 107.4 +1.11
20 1977 1578 113.0 — — — — — — — 57.1% +0.21 2–0 1–0 — +0.30 1981 1746 134.8 — — — — -2 — -75 42.7% -0.51 7–5 (58%) 4–2 (67%) 104.9 -1.67
21 1978 1616 117.7 — — — — +29 — -43 48.6% -0.16 3–2 (60%) 2–1 (67%) — +0.13 1982 1656 125.3 — — — — -25 -46 — 35.5% -1.06 4–4 (50%) 1–2 (33%) 99.6 -1.44
22 1979 1566 114.8 — — — — +87 — -68 27.0% -1.76 3–4 (43%) 0–1 — -0.92 1983 1672 132.3 — — — — -12 — — 42.9% -0.43 2–1 (67%) 1–2 (33%) 100.3 -0.96
23 1980 1704 131.6 — — — — -27 -213 -91 52.4% -0.19 4–5 (44%) 6–1 (86%) 104.8 -1.47 1984 1734 127.7 — — — — +24 — -95 48.8% -0.05 7–3 (70%) 2–3 (40%) 105.0 +0.48
24 1981 1737 128.5 — — — — -9 — -69 43.2% -0.74 8–4 (67%) 2–0 — -2.02 1985 1778 143.9 — — — — +52 — -156 58.5% +0.41 8–4 (67%) 5–5 (50%) 101.8 -0.23
25 1982 1708 102.3 — — — — -1 -251 -62 44.1% -0.80 5–2 (71%) 4–4 (50%) 102.9 -0.55 1986 1680 121.3 — — — — +20 — -64 39.1% -0.55 5–3 (63%) 2–5 (29%) 97.5 +1.36
26 1983 1568 105.1 — — — — +49 -96 +31 28.3% -1.37 1–3 (25%) 0–3 (0%) 93.9 +0.62 1987 1624 119.6 — — — — +7 — -16 38.6% -0.67 3–4 (43%) 1–1 — +0.21
27 — — — — — — — — — — — — — — — — 1988 1614 129.2 — — — — +12 — — 43.3% -0.43 4–5 (44%) 5–4 (56%) 100.4 -0.37
28 — — — — — — — — — — — — — — — — 1989 1577 117.4 — — — — -17 — -22 32.0% -1.38 6–4 (60%) 6–1 (86%) 107.4 -1.28
29 — — — — — — — — — — — — — — — — 1990 1591 128.5 — — — — +9 — — 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 105.5 — — — — -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 — 1778 121.7 — — — — +21 -189 -53 43.1% -0.66 30–22 (58%) 16–12 (57%) 106.7 -0.71 — 1911 135.4 — — — — +8 -84 -60 42.6% -0.56 76–57 (57%) 41–42 (49%) 107.5 -0.20

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.