H2H data updated: 2026-09-14 00:00 UTC

Ilana Kloss vs Betty Ann Grubb H2H: 0-2

Betty Ann Grubb holds a 2–0 lead over Ilana Kloss in their WTA head-to-head. Across 2 main-draw meetings, Betty Ann Grubb leads 1–0 on grass and 1–0 on hard courts. Most recently, Betty Ann Grubb won the 1979 Wimbledon round of 64 7-5 3-6 6-4.

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

Ilana Kloss
RSA Age 70 Left-Handed 164 cm / 5'5"
H2H
0 – 2
2 main-draw meetings
Betty Ann Grubb
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Betty Ann Grubb 7-5 3-6 6-4 Ilana Kloss Match data Jun 29, 1979* R64 Wimbledon Grand Slam Grass
Betty Ann Grubb 6-4 6-7 6-2 Ilana Kloss Match data Jan 25, 1979* R32 Hollywood 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
Ilana Kloss — — — 1,890 135 144 48.4% 0 0 0 0 8 8
Betty Ann Grubb — — — 1,824 124 112 52.5% 0 0 0 0 6 6

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.

Ilana Kloss Betty Ann Grubb
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1970 0–1 0.0% — 1,491 0 0 1968 21–8 72.4% — 1,633 0 2
1971 5–4 55.6% — 1,561 0 1 1969 29–14 67.4% — 1,777 0 4
1972 13–12 52.0% — 1,592 0 3 1970 18–15 54.5% — 1,684 0 4
1973 38–18 67.9% — 1,872 0 8 1971 5–11 31.2% — 1,679 0 4
1974 19–16 54.3% — 1,801 0 8 1972 2–2 50.0% — 1,673 0 5
1975 9–20 31.0% — 1,688 0 8 1973 4–4 50.0% — 1,699 0 6
1976 18–15 54.5% — 1,784 0 8 1974 7–10 41.2% — 1,675 0 6
1977 4–13 23.5% — 1,667 0 8 1975 5–4 55.6% — 1,728 0 6
1978 14–11 56.0% — 1,740 0 8 1976 2–4 33.3% — 1,683 0 6
1979 15–26 36.6% — 1,698 0 8 1977 0–2 0.0% — 1,652 0 6
1980 0–7 0.0% — 1,618 0 8 1978 3–1 75.0% — 1,660 0 6
1982 0–1 0.0% — 1,599 0 8 1979 25–26 49.0% — 1,816 0 6
— — — — — — — 1980 2–9 18.2% — 1,721 0 6
— — — — — — — 1981 1–2 33.3% — 1,709 0 6

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Ilana Kloss Betty Ann Grubb
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 %
1970 0 1 1 0.0% — — — — — — — — — — — — 1968 9 2 11 81.8% 10 3 13 76.9% 2 3 5 40.0% — — — —
1971 5 4 9 55.6% — — — — — — — — — — — — 1969 10 3 13 76.9% — — — — 14 9 23 60.9% 2 2 4 50.0%
1972 8 7 15 53.3% 0 1 1 0.0% 3 4 7 42.9% — — — — 1970 6 3 9 66.7% 5 4 9 55.6% 5 6 11 45.5% 1 1 2 50.0%
1973 15 6 21 71.4% 14 7 21 66.7% 9 5 14 64.3% — — — — 1971 2 3 5 40.0% 2 3 5 40.0% 1 2 3 33.3% 0 3 3 0.0%
1974 8 5 13 61.5% 3 4 7 42.9% 2 3 5 40.0% 2 2 4 50.0% 1972 0 2 2 0.0% — — — — — — — — — — — —
1975 1 9 10 10.0% 1 2 3 33.3% 1 2 3 33.3% 2 6 8 25.0% 1973 3 2 5 60.0% — — — — — — — — 1 2 3 33.3%
1976 3 2 5 60.0% 9 8 17 52.9% 5 4 9 55.6% 1 1 2 50.0% 1974 6 5 11 54.5% 1 2 3 33.3% — — — — 0 3 3 0.0%
1977 1 1 2 50.0% 1 6 7 14.3% 2 2 4 50.0% 0 4 4 0.0% 1975 5 3 8 62.5% — — — — — — — — 0 1 1 0.0%
1978 4 4 8 50.0% — — — — 9 4 13 69.2% 1 3 4 25.0% 1976 2 3 5 40.0% 0 1 1 0.0% — — — — — — — —
1979 2 7 9 22.2% 1 4 5 20.0% 4 5 9 44.4% 8 10 18 44.4% 1977 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0%
1980 0 1 1 0.0% 0 2 2 0.0% 0 2 2 0.0% 0 2 2 0.0% 1979 8 9 17 47.1% 4 4 8 50.0% 9 6 15 60.0% 4 7 11 36.4%
1982 — — — — — — — — 0 1 1 0.0% — — — — 1980 0 1 1 0.0% 0 1 1 0.0% 2 2 4 50.0% 0 5 5 0.0%
— — — — — — — — — — — — — — — — — 1981 1 2 3 33.3% — — — — — — — — — — — —
Career 47 47 94 50.0% 29 34 63 46.0% 35 32 67 52.2% 14 28 42 33.3% Career 52 38 90 57.8% 22 19 41 53.7% 33 28 61 54.1% 8 25 33 24.2%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Ilana Kloss Betty Ann Grubb
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
1970 1491 97.3 — — — — — — — 0.0% -4.50 — — — +0.01 1968 1633 121.5 — — — — +94 +16 -113 69.8% +1.56 3–2 (60%) — — 0.00
1971 1562 111.3 — — — — +63 — — 57.9% +0.26 0–1 0–1 — +1.35 1969 1777 129.3 — — — — +55 — -18 64.1% +0.96 5–3 (63%) — — +1.73
1972 1593 123.4 — — — — +46 — -33 54.5% +0.64 1–4 (20%) 0–2 — +3.97 1970 1685 118.2 — — — — +114 -50 +6 53.4% +0.34 4–3 (57%) 1–0 — +0.50
1973 1872 144.6 — — — — -17 -132 -190 66.4% +1.36 7–9 (44%) 2–1 (67%) 101.0 +4.89 1971 1680 131.9 — — — — +54 -42 +16 25.0% -1.81 2–0 0–2 — -2.09
1974 1802 136.3 — — — — +25 -83 -116 52.2% +0.16 1–4 (20%) 2–1 (67%) 97.5 -2.52 1972 1673 104.5 — — — — — — — 50.0% 0.00 — — — -0.16
1975 1688 127.3 — — — — -12 -4 -4 36.4% -0.99 2–8 (20%) 3–5 (38%) 91.8 -1.41 1973 1700 124.2 — — — — +39 — — 47.1% -0.35 1–0 0–1 — +0.31
1976 1784 138.9 — — — — -88 -29 -55 50.6% +0.13 8–3 (73%) 3–2 (60%) 108.4 -3.02 1974 1676 118.4 — — — — -14 -33 — 47.2% +0.08 1–3 (25%) 0–5 (0%) 92.5 -0.32
1977 1668 111.1 — — — — -42 +4 +35 28.2% -1.69 2–3 (40%) 2–1 (67%) 99.1 -0.17 1975 1728 114.2 — — — — +19 — — 47.4% -0.31 2–1 (67%) 2–1 (67%) 101.9 +0.34
1978 1740 124.2 — — — — -82 — +35 55.9% +0.24 4–5 (44%) 5–6 (45%) 100.3 +1.24 1976 1684 105.1 — — — — +18 — — 33.3% -0.58 — 0–2 — +0.77
1979 1698 126.9 — — — — -30 -52 +32 36.8% -1.15 10–5 (67%) 7–2 (78%) 110.6 -0.20 1977 1653 100.1 — — — — — — — 20.0% -1.00 0–1 0–1 — +0.17
1980 1619 104.5 — — — — -41 — — 6.7% -3.20 0–1 0–2 — -0.75 1978 1660 112.4 — — — — — — — 75.0% +2.63 — — — +0.35
1982 1599 97.0 — — — — — — — 33.3% -2.67 0–1 — — +0.16 1979 1817 140.6 — — — — -45 -172 -41 45.3% -0.42 12–5 (71%) 5–5 (50%) 106.5 -0.93
— — — — — — — — — — — — — — — — 1980 1722 127.1 — — — — -73 — +67 33.3% -1.07 2–5 (29%) 1–2 (33%) 95.6 -1.30
— — — — — — — — — — — — — — — — 1981 1709 110.6 — — — — -33 — — 33.3% -0.50 — 0–1 — -0.04
Career 1890 136.4 — — — — -12 -68 -48 48.8% -0.09 35–44 (44%) 24–23 (51%) 101.1 +1.28 Career 1825 133.9 — — — — +19 -51 -20 51.1% +0.14 32–23 (58%) 9–20 (31%) 97.8 -0.29

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.