H2H data updated: 2026-09-12 00:00 UTC

Yvonne Vermaak vs Beth Herr H2H: 1-0

Yvonne Vermaak holds a 1–0 lead over Beth Herr in their WTA head-to-head. Across 1 main-draw meeting, Yvonne Vermaak leads 1–0 on hard courts. Most recently, Yvonne Vermaak won the 1985 Ginny Championships round of 16 6-4 6-3.

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Yvonne Vermaak
RSA Age 69 Right-Handed 155 cm / 5'1"
H2H
1 – 0
1 main-draw meetings
Beth Herr
USA Age 62 Right-Handed 170 cm / 5'7"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Yvonne Vermaak #41 6-4 6-3 Beth Herr #39 Match data Jan 6, 1985* R16 Ginny Championships 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
Yvonne Vermaak #558 #38 10 1,892 239 249 49.0% 0 0 0 0 5 5
Beth Herr #424 #31 18 1,766 107 128 45.5% 0 0 0 0 1 1

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 Yvonne Vermaak Beth Herr
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1973 0–2 0.0% — 1,495 0 0 — — — — — — —
17 1974 1–2 33.3% — 1,489 0 0 1981 0–4 0.0% — 1,483 0 0
18 1975 15–12 55.6% — 1,599 0 0 1982 8–5 61.5% — 1,625 0 0
19 1976 8–10 44.4% — 1,606 0 1 1983 19–18 51.4% — 1,702 0 0
20 1977 20–14 58.8% — 1,765 0 2 1984 20–21 48.8% #39 1,699 0 0
21 1978 29–23 55.8% — 1,791 0 2 1985 17–23 42.5% #47 1,630 0 0
22 1979 15–23 39.5% — 1,779 0 2 1986 22–15 59.5% #52 1,707 0 1
23 1980 19–18 51.4% — 1,741 0 2 1987 7–16 30.4% #126 1,583 0 1
24 1981 19–28 40.4% — 1,719 0 2 1988 5–10 33.3% #98 1,544 0 1
25 1982 36–27 57.1% — 1,820 0 2 1989 9–14 39.1% #132 1,539 0 1
26 1983 33–26 55.9% — 1,754 0 4 1990 0–2 0.0% #373 1,518 0 1
27 1984 29–28 50.9% #41 1,800 0 5 — — — — — — —
28 1985 8–21 27.6% #41 1,604 0 5 — — — — — — —
29 1986 6–11 35.3% #104 1,565 0 5 — — — — — — —
30 1987 1–3 25.0% #201 1,558 0 5 — — — — — — —
31 1988 0–1 0.0% #287 1,541 0 5 — — — — — — —

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 Yvonne Vermaak Beth Herr
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 %
16 1973 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
17 1974 1 2 3 33.3% — — — — — — — — — — — — 1981 0 1 1 0.0% — — — — — — — — 0 3 3 0.0%
18 1975 4 3 7 57.1% 7 4 11 63.6% 3 4 7 42.9% — — — — 1982 7 3 10 70.0% 1 2 3 33.3% — — — — — — — —
19 1976 1 1 2 50.0% 7 6 13 53.8% 0 2 2 0.0% 0 1 1 0.0% 1983 4 4 8 50.0% 6 5 11 54.5% 5 5 10 50.0% 4 4 8 50.0%
20 1977 3 2 5 60.0% 6 7 13 46.2% 8 2 10 80.0% 3 3 6 50.0% 1984 13 5 18 72.2% 2 5 7 28.6% 1 3 4 25.0% 4 8 12 33.3%
21 1978 13 7 20 65.0% 2 2 4 50.0% 8 4 12 66.7% 6 10 16 37.5% 1985 11 13 24 45.8% 6 7 13 46.2% 0 3 3 0.0% — — — —
22 1979 4 6 10 40.0% 4 4 8 50.0% 5 4 9 55.6% 2 9 11 18.2% 1986 17 8 25 68.0% 0 3 3 0.0% 0 1 1 0.0% 5 3 8 62.5%
23 1980 2 5 7 28.6% 9 5 14 64.3% 4 4 8 50.0% 4 4 8 50.0% 1987 3 7 10 30.0% 0 3 3 0.0% 3 3 6 50.0% 1 3 4 25.0%
24 1981 7 9 16 43.8% 11 9 20 55.0% 0 1 1 0.0% 1 9 10 10.0% 1988 5 8 13 38.5% 0 1 1 0.0% 0 1 1 0.0% — — — —
25 1982 4 4 8 50.0% 13 7 20 65.0% 9 6 15 60.0% 10 10 20 50.0% 1989 9 12 21 42.9% 0 1 1 0.0% 0 1 1 0.0% — — — —
26 1983 14 4 18 77.8% 7 8 15 46.7% 8 5 13 61.5% 4 9 13 30.8% 1990 — — — — 0 2 2 0.0% — — — — — — — —
27 1984 12 7 19 63.2% 7 8 15 46.7% 8 6 14 57.1% 2 7 9 22.2% — — — — — — — — — — — — — — — — —
28 1985 5 8 13 38.5% 1 4 5 20.0% 1 3 4 25.0% 1 6 7 14.3% — — — — — — — — — — — — — — — — —
29 1986 1 2 3 33.3% 4 6 10 40.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — —
30 1987 1 1 2 50.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
31 1988 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 72 64 136 52.9% 78 72 150 52.0% 55 44 99 55.6% 33 68 101 32.7% — 69 61 130 53.1% 15 29 44 34.1% 9 17 26 34.6% 14 21 35 40.0%

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 Yvonne Vermaak Beth Herr
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
16 1973 1496 101.8 — — — — — — — 20.0% -3.20 0–1 — — -0.39 — — — — — — — — — — — — — — — —
17 1974 1489 99.2 — — — — +44 — — 42.9% -0.71 0–1 — — +0.69 1981 1483 116.0 — — — — +92 — — 11.1% -2.44 0–1 0–1 — -0.22
18 1975 1599 120.1 — — — — +53 -2 -47 57.1% +0.46 3–6 (33%) 3–0 (100%) 100.2 +2.43 1982 1626 130.3 — — — — +65 -105 — 58.6% +0.48 2–1 (67%) 1–0 — +0.21
19 1976 1607 119.9 — — — — -10 +40 — 48.8% +0.09 2–5 (29%) 1–3 (25%) — +0.96 1983 1703 130.1 — — — — +4 -34 -74 52.2% +0.27 7–9 (44%) 5–4 (56%) 101.7 +0.51
20 1977 1765 138.0 — — — — -79 -79 -75 58.1% +0.41 3–3 (50%) 6–5 (55%) 102.4 +0.27 1984 1699 124.5 — — — — +40 -72 -81 47.9% -0.17 9–7 (56%) 3–3 (50%) 103.5 +0.62
21 1978 1791 135.3 — — — — +3 -132 -30 52.6% +0.33 8–6 (57%) 2–6 (25%) 99.2 +2.99 1985 1630 116.2 — — — — +40 -30 -81 41.3% -0.46 8–4 (67%) 6–0 (100%) 107.3 +1.50
22 1979 1780 155.2 — — — — -44 -74 +25 40.5% -0.50 4–4 (50%) 1–2 (33%) 99.0 -4.03 1986 1707 128.7 — — — — +52 -147 — 60.5% +0.78 2–7 (22%) 5–3 (63%) 95.2 +4.62
23 1980 1742 138.8 — — — — -89 +32 +50 52.5% +0.26 2–4 (33%) 4–3 (57%) 99.5 -4.96 1987 1583 108.5 — — — — +35 -89 -19 34.7% -0.98 2–3 (40%) 1–1 — +1.29
24 1981 1720 143.5 — — — — -64 +96 — 43.1% -0.39 4–6 (40%) 1–5 (17%) 96.9 -2.78 1988 1544 102.6 — — — — +15 — — 36.8% -0.76 4–6 (40%) 0–1 — +0.77
25 1982 1820 142.9 — — — — -77 +69 -9 55.2% +0.06 11–10 (52%) 9–10 (47%) 99.8 -3.53 1989 1540 114.6 — — — — +18 — — 43.6% -0.47 3–6 (33%) 1–3 (25%) — +1.57
26 1983 1755 138.0 — — — — +7 +104 +97 55.4% +0.20 10–11 (48%) 7–3 (70%) 100.0 +1.14 1990 1519 101.1 — — — — — — — 20.0% -2.20 0–1 0–1 — -0.16
27 1984 1801 134.8 — — — — -65 -14 +95 53.1% +0.15 5–11 (31%) 7–8 (47%) 94.0 -0.64 — — — — — — — — — — — — — — — —
28 1985 1605 125.4 — — — — +10 +114 +210 37.7% -0.97 1–10 (9%) 0–1 — -0.99 — — — — — — — — — — — — — — — —
29 1986 1565 105.1 — — — — +19 +86 +196 36.8% -0.87 2–2 (50%) 0–1 — 0.00 — — — — — — — — — — — — — — — —
30 1987 1558 108.1 — — — — — — — 25.0% -2.38 — — — -0.56 — — — — — — — — — — — — — — — —
31 1988 1542 94.0 — — — — — — — 0.0% -4.00 — — — +0.11 — — — — — — — — — — — — — — — —
Career — 1892 141.9 — — — — -33 +33 +34 50.0% -0.05 55–80 (41%) 41–47 (47%) 93.1 -1.91 — 1766 126.0 — — — — +36 -57 -62 46.7% -0.17 37–45 (45%) 22–17 (56%) 102.6 +4.60

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.