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

Chris Oneil vs Ilana Kloss H2H: 0-2

Ilana Kloss holds a 2–0 lead over Chris Oneil in their WTA head-to-head. Across 2 main-draw meetings, Ilana Kloss leads 2–0 on grass. Most recently, Ilana Kloss won the 1978 Adelaide International quarterfinal 6-3 6-4.

AUS Age 70 Right-Handed
H2H
0 2
2 main-draw meetings
RSA Age 70 Left-Handed 164 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ilana Kloss 6-3 6-4 Chris Oneil Match data Dec 16, 1978* QF Adelaide International WTA 500 Grass
Ilana Kloss 6-1 6-1 Chris Oneil Match data Jun 28, 1978* R128 Wimbledon Grand Slam Grass

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
Chris Oneil 1,766 99 108 47.8% 1 0 0 2 6 9
Ilana Kloss 1,890 135 144 48.4% 0 0 0 0 8 8

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 Chris Oneil Ilana Kloss
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 1970 0–1 0.0% 1,491 0 0
15 1971 5–4 55.6% 1,561 0 1
16 1972 6–3 66.7% 1,547 0 2 1972 13–12 52.0% 1,592 0 3
17 1973 0–3 0.0% 1,502 0 2 1973 38–18 67.9% 1,872 0 8
18 1974 10–12 45.5% 1,588 0 2 1974 19–16 54.3% 1,801 0 8
19 1975 30–17 63.8% 1,661 0 4 1975 9–20 31.0% 1,688 0 8
20 1976 14–6 70.0% 1,691 0 7 1976 18–15 54.5% 1,784 0 8
21 1977 2–5 28.6% 1,638 0 7 1977 4–13 23.5% 1,667 0 8
22 1978 13–12 52.0% 1,716 1 8 1978 14–11 56.0% 1,740 0 8
23 1979 7–12 36.8% 1,630 1 8 1979 15–26 36.6% 1,698 0 8
24 1980 5–8 38.5% 1,575 1 8 1980 0–7 0.0% 1,618 0 8
25 1981 4–9 30.8% 1,552 1 9
26 1982 3–6 33.3% 1,595 1 9 1982 0–1 0.0% 1,599 0 8
27 1983 5–15 25.0% 1,526 1 9

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 Chris Oneil Ilana Kloss
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 1970 0 1 1 0.0%
15 1971 5 4 9 55.6%
16 1972 3 0 3 100.0% 3 3 6 50.0% 1972 8 7 15 53.3% 0 1 1 0.0% 3 4 7 42.9%
17 1973 0 3 3 0.0% 1973 15 6 21 71.4% 14 7 21 66.7% 9 5 14 64.3%
18 1974 4 4 8 50.0% 6 8 14 42.9% 1974 8 5 13 61.5% 3 4 7 42.9% 2 3 5 40.0% 2 2 4 50.0%
19 1975 18 5 23 78.3% 10 8 18 55.6% 1975 1 9 10 10.0% 1 2 3 33.3% 1 2 3 33.3% 2 6 8 25.0%
20 1976 3 3 6 50.0% 4 2 6 66.7% 1976 3 2 5 60.0% 9 8 17 52.9% 5 4 9 55.6% 1 1 2 50.0%
21 1977 0 2 2 0.0% 2 3 5 40.0% 1977 1 1 2 50.0% 1 6 7 14.3% 2 2 4 50.0% 0 4 4 0.0%
22 1978 0 2 2 0.0% 1 3 4 25.0% 10 4 14 71.4% 0 1 1 0.0% 1978 4 4 8 50.0% 9 4 13 69.2% 1 3 4 25.0%
23 1979 2 2 4 50.0% 1 4 5 20.0% 2 5 7 28.6% 1979 2 7 9 22.2% 1 4 5 20.0% 4 5 9 44.4% 8 10 18 44.4%
24 1980 0 1 1 0.0% 2 4 6 33.3% 3 2 5 60.0% 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%
25 1981 0 5 5 0.0% 2 4 6 33.3%
26 1982 1 3 4 25.0% 2 2 4 50.0% 0 1 1 0.0% 1982 0 1 1 0.0%
27 1983 2 6 8 25.0% 0 4 4 0.0% 2 4 6 33.3%
Career 4 11 15 26.7% 33 37 70 47.1% 46 48 94 48.9% 0 3 3 0.0% 47 47 94 50.0% 29 34 63 46.0% 35 32 67 52.2% 14 28 42 33.3%

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 Chris Oneil Ilana Kloss
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 1970 1491 97.3 0.0% -4.50 +0.01
15 1971 1562 111.3 +63 57.9% +0.26 0–1 0–1 +1.35
16 1972 1548 107.2 +39 +1 57.9% +0.53 2–1 (67%) 3–0 (100%) 104.5 +1.29 1972 1593 123.4 +46 -33 54.5% +0.64 1–4 (20%) 0–2 +3.97
17 1973 1503 96.5 -14 14.3% -2.00 0–1 0–2 +0.32 1973 1872 144.6 -17 -132 -190 66.4% +1.36 7–9 (44%) 2–1 (67%) 101.0 +4.89
18 1974 1589 130.7 +28 -30 49.0% -0.18 2–5 (29%) 1–1 -0.21 1974 1802 136.3 +25 -83 -116 52.2% +0.16 1–4 (20%) 2–1 (67%) 97.5 -2.52
19 1975 1661 134.9 +126 -23 61.8% +0.86 5–3 (63%) 7–1 (88%) 106.5 +3.59 1975 1688 127.3 -12 -4 -4 36.4% -0.99 2–8 (20%) 3–5 (38%) 91.8 -1.41
20 1976 1691 124.2 +57 -6 68.2% +1.39 2–2 (50%) 2–1 (67%) 100.3 +2.35 1976 1784 138.9 -88 -29 -55 50.6% +0.13 8–3 (73%) 3–2 (60%) 108.4 -3.02
21 1977 1638 111.9 +4 35.3% -0.53 1–2 (33%) 1–0 +0.42 1977 1668 111.1 -42 +4 +35 28.2% -1.69 2–3 (40%) 2–1 (67%) 99.1 -0.17
22 1978 1716 126.6 -151 -47 +65 49.1% 0.00 4–3 (57%) 1–1 +1.21 1978 1740 124.2 -82 +35 55.9% +0.24 4–5 (44%) 5–6 (45%) 100.3 +1.24
23 1979 1631 118.0 -44 -33 +83 43.2% -0.55 3–5 (38%) 1–0 +1.29 1979 1698 126.9 -30 -52 +32 36.8% -1.15 10–5 (67%) 7–2 (78%) 110.6 -0.20
24 1980 1576 99.2 -18 +119 37.9% -0.79 2–1 (67%) 0–3 (0%) 98.2 +0.16 1980 1619 104.5 -41 6.7% -3.20 0–1 0–2 -0.75
25 1981 1552 111.1 -52 +127 39.3% -1.11 1–3 (25%) 2–1 (67%) +0.74
26 1982 1596 132.3 -112 +127 38.1% -0.76 1–2 (33%) 1–2 (33%) 100.0 -1.11 1982 1599 97.0 33.3% -2.67 0–1 +0.16
27 1983 1527 99.9 -38 -41 +147 27.3% -1.34 2–2 (50%) 0–5 (0%) 95.9 +0.78
Career 1766 128.0 -62 +33 +36 48.6% -0.06 25–30 (45%) 19–17 (53%) 100.0 +5.26 1890 136.4 -12 -68 -48 48.8% -0.09 35–44 (44%) 24–23 (51%) 101.1 +1.28

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.