H2H data updated: 2026-09-13 00:00 UTC

Mona Guerrant vs Marcie Louie H2H: 3-0

Mona Guerrant holds a 3–0 lead over Marcie Louie in their WTA head-to-head. Across 3 main-draw meetings, Mona Guerrant leads 1–0 on clay and 1–0 on hard courts. Most recently, Mona Guerrant won the 1980 Berkeley quarterfinal 6-0 6-0.

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

Mona Guerrant
USA Age 77 Right-Handed
H2H
3 – 0
3 main-draw meetings
Marcie Louie
USA Age 73

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mona Guerrant 6-0 6-0 Marcie Louie Match data May 5, 1980* QF Berkeley WTA 250 —
Mona Guerrant 6-4 6-3 Marcie Louie Match data Oct 8, 1976* R16 Phoenix WTA 250 Hard
Mona Guerrant 6-3 6-0 Marcie Louie Match data Sep 16, 1972* R16 Charlotte WTA 250 Clay

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
Mona Guerrant — — — 1,941 122 116 51.3% 0 0 0 0 3 3
Marcie Louie — — — 1,865 103 141 42.2% 0 0 0 0 4 4

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 Mona Guerrant Marcie Louie
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 — — — — — — — 1968 1–2 33.3% — 1,491 0 0
15 — — — — — — — 1969 4–1 80.0% — 1,545 0 1
16 — — — — — — — 1970 3–3 50.0% — 1,564 0 2
17 — — — — — — — 1971 4–3 57.1% — 1,593 0 3
18 — — — — — — — 1972 19–20 48.7% — 1,699 0 3
19 — — — — — — — 1973 7–20 25.9% — 1,626 0 3
20 1969 1–1 50.0% — 1,500 0 0 1974 11–17 39.3% — 1,684 0 3
21 1970 1–2 33.3% — 1,504 0 0 1975 16–15 51.6% — 1,784 0 4
22 1971 3–8 27.3% — 1,517 0 0 1976 13–16 44.8% — 1,787 0 4
23 1972 28–22 56.0% — 1,733 0 1 1977 11–22 33.3% — 1,649 0 4
24 1973 17–19 47.2% — 1,780 0 2 1978 0–2 0.0% — 1,601 0 4
25 1974 12–14 46.2% — 1,779 0 2 1979 2–5 28.6% — 1,609 0 4
26 1975 12–12 50.0% — 1,905 0 2 1980 10–10 50.0% — 1,609 0 4
27 1976 15–14 51.7% — 1,898 0 2 1981 2–3 40.0% — 1,609 0 4
28 1977 14–9 60.9% — 1,890 0 2 1982 0–2 0.0% — 1,576 0 4
29 1978 5–11 31.2% — 1,808 0 2 — — — — — — —
31 1980 14–4 77.8% — 1,812 0 3 — — — — — — —

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 Mona Guerrant Marcie Louie
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 %
14 — — — — — — — — — — — — — — — — — 1968 1 2 3 33.3% — — — — — — — — — — — —
15 — — — — — — — — — — — — — — — — — 1969 4 1 5 80.0% — — — — — — — — — — — —
16 — — — — — — — — — — — — — — — — — 1970 3 3 6 50.0% — — — — — — — — — — — —
17 — — — — — — — — — — — — — — — — — 1971 2 0 2 100.0% 1 1 2 50.0% 1 2 3 33.3% — — — —
18 — — — — — — — — — — — — — — — — — 1972 1 4 5 20.0% 6 7 13 46.2% 11 6 17 64.7% 1 3 4 25.0%
19 — — — — — — — — — — — — — — — — — 1973 2 4 6 33.3% 2 6 8 25.0% 0 2 2 0.0% 3 8 11 27.3%
20 1969 — — — — 1 1 2 50.0% — — — — — — — — 1974 2 5 7 28.6% 2 3 5 40.0% 0 1 1 0.0% 7 8 15 46.7%
21 1970 — — — — 1 2 3 33.3% — — — — — — — — 1975 3 5 8 37.5% 9 4 13 69.2% — — — — 4 6 10 40.0%
22 1971 0 2 2 0.0% 2 2 4 50.0% 1 4 5 20.0% — — — — 1976 4 3 7 57.1% 4 2 6 66.7% 1 3 4 25.0% 4 8 12 33.3%
23 1972 4 3 7 57.1% 9 8 17 52.9% 14 9 23 60.9% 1 1 2 50.0% 1977 3 5 8 37.5% 2 8 10 20.0% — — — — 5 8 13 38.5%
24 1973 3 4 7 42.9% 7 7 14 50.0% 2 4 6 33.3% 5 4 9 55.6% 1978 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — —
25 1974 1 2 3 33.3% 0 3 3 0.0% 5 5 10 50.0% 6 4 10 60.0% 1979 0 2 2 0.0% — — — — 0 1 1 0.0% 1 2 3 33.3%
26 1975 4 4 8 50.0% 3 2 5 60.0% 1 1 2 50.0% 4 5 9 44.4% 1980 1 2 3 33.3% 6 3 9 66.7% 0 2 2 0.0% 1 1 2 50.0%
27 1976 2 3 5 40.0% 0 1 1 0.0% 5 2 7 71.4% 8 8 16 50.0% 1981 2 3 5 40.0% — — — — — — — — — — — —
28 1977 2 2 4 50.0% 6 3 9 66.7% 4 2 6 66.7% 2 2 4 50.0% 1982 0 2 2 0.0% — — — — — — — — — — — —
29 1978 — — — — 2 2 4 50.0% 0 2 2 0.0% 3 7 10 30.0% — — — — — — — — — — — — — — — — —
31 1980 0 1 1 0.0% — — — — — — — — 2 1 3 66.7% — — — — — — — — — — — — — — — — —
Career — 16 21 37 43.2% 31 31 62 50.0% 32 29 61 52.5% 31 32 63 49.2% — 28 41 69 40.6% 32 35 67 47.8% 13 18 31 41.9% 26 44 70 37.1%

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 Mona Guerrant Marcie Louie
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
14 — — — — — — — — — — — — — — — — 1968 1492 100.8 — — — — +9 — — 42.9% -0.43 0–1 — — -0.04
15 — — — — — — — — — — — — — — — — 1969 1545 108.9 — — — — +74 — — 72.7% +1.73 1–0 — — +0.89
16 — — — — — — — — — — — — — — — — 1970 1565 106.0 — — — — +51 — — 46.2% +0.08 1–0 1–1 — +0.63
17 — — — — — — — — — — — — — — — — 1971 1593 107.1 — — — — — — -48 50.0% -0.42 — — — +1.18
18 — — — — — — — — — — — — — — — — 1972 1699 128.6 — — — — -98 -107 +10 47.1% -0.29 5–2 (71%) 1–2 (33%) 103.2 -3.23
19 — — — — — — — — — — — — — — — — 1973 1627 126.7 — — — — -36 -91 — 24.6% -1.54 3–2 (60%) 3–4 (43%) 100.9 -3.41
20 1969 1500 92.5 — — — — — — — 40.0% -2.40 1–0 — — +0.28 1974 1684 131.0 — — — — -38 -120 — 40.0% -0.75 5–4 (56%) 4–1 (80%) 105.8 -1.83
21 1970 1504 106.4 — — — — — +14 — 42.9% -1.00 0–1 — — +0.10 1975 1784 141.4 — — — — -69 -51 — 49.3% -0.27 4–3 (57%) 6–1 (86%) 106.0 -1.61
22 1971 1517 118.6 — — — — — +38 +14 35.7% -0.75 2–4 (33%) 0–3 (0%) 95.8 0.00 1976 1788 133.0 — — — — -63 -23 -148 45.2% -0.10 6–2 (75%) 2–7 (22%) 101.6 -2.81
23 1972 1734 136.4 — — — — -121 -79 -58 56.3% +0.56 8–11 (42%) 5–0 (100%) 103.8 +0.32 1977 1649 127.8 — — — — +26 +9 — 35.1% -1.01 6–5 (55%) 3–6 (33%) 99.4 -0.50
24 1973 1781 144.7 — — — — -54 -77 -115 48.8% -0.15 3–5 (38%) 2–2 (50%) 99.8 -3.77 1978 1602 95.4 — — — — — — — 0.0% -2.25 — — — +0.67
25 1974 1779 137.0 — — — — -26 -97 -75 50.9% +0.11 1–4 (20%) 3–4 (43%) 97.1 -1.56 1979 1610 120.6 — — — — +45 — — 31.3% -1.81 1–1 — — -0.60
26 1975 1906 154.1 — — — — -52 -116 — 48.2% -0.13 5–3 (63%) 2–4 (33%) 103.0 -3.85 1980 1609 110.6 — — — — +2 +54 — 47.7% -0.20 3–3 (50%) 0–1 — +0.67
27 1976 1898 149.2 — — — — -30 — -110 55.9% +0.57 2–8 (20%) 2–5 (29%) 93.6 -2.51 1981 1609 104.8 — — — — +37 — — 36.4% -1.27 1–0 2–0 — +0.25
28 1977 1890 136.0 — — — — -64 -47 -93 57.7% +0.69 4–4 (50%) 3–1 (75%) 100.8 -0.54 1982 1576 93.4 — — — — — — — 0.0% -3.00 — — — +0.12
29 1978 1809 135.5 — — — — -44 -17 — 35.9% -0.87 3–4 (43%) 0–3 (0%) — -2.29 — — — — — — — — — — — — — — — —
31 1980 1812 138.2 — — — — -108 — — 73.8% +2.26 4–2 (67%) 1–0 — +0.36 — — — — — — — — — — — — — — — —
Career — 1942 149.0 — — — — -53 -61 -71 52.5% +0.27 33–46 (42%) 18–22 (45%) 98.6 -5.68 — 1866 133.0 — — — — -23 -46 -24 41.3% -0.61 36–23 (61%) 22–23 (49%) 108.5 -3.96

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.