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

Janine Lieffrig vs Ilana Kloss H2H: 0-1

Ilana Kloss holds a 1–0 lead over Janine Lieffrig in their WTA head-to-head. Across 1 main-draw meeting, Ilana Kloss leads 1–0 on hard courts. Most recently, Ilana Kloss won the 1972 Cape Town 2 round of 16 7-5 6-1.

H2H
0 1
1 main-draw meetings
RSA Age 70 Left-Handed 164 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ilana Kloss 7-5 6-1 Janine Lieffrig Match data Dec 22, 1972* R16 Cape Town 2 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
Janine Lieffrig 1,545 18 25 41.9% 0 0 0 0 1 1
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 Janine Lieffrig 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 13–12 52.0% 1,592 0 3
17 1973 38–18 67.9% 1,872 0 8
18 1974 19–16 54.3% 1,801 0 8
19 1975 9–20 31.0% 1,688 0 8
20 1976 18–15 54.5% 1,784 0 8
21 1977 4–13 23.5% 1,667 0 8
22 1978 14–11 56.0% 1,740 0 8
23 1979 15–26 36.6% 1,698 0 8
24 1980 0–7 0.0% 1,618 0 8
26 1982 0–1 0.0% 1,599 0 8
30 1968 5–6 45.5% 1,483 0 0
31 1969 6–6 50.0% 1,490 0 0
32 1970 3–4 42.9% 1,500 0 1
33 1971 2–4 33.3% 1,492 0 1
34 1972 2–4 33.3% 1,500 0 1
36 1974 0–1 0.0% 1,482 0 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 Janine Lieffrig 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 1593 123.4 +46 -33 54.5% +0.64 1–4 (20%) 0–2 +3.97
17 1973 1872 144.6 -17 -132 -190 66.4% +1.36 7–9 (44%) 2–1 (67%) 101.0 +4.89
18 1974 1802 136.3 +25 -83 -116 52.2% +0.16 1–4 (20%) 2–1 (67%) 97.5 -2.52
19 1975 1688 127.3 -12 -4 -4 36.4% -0.99 2–8 (20%) 3–5 (38%) 91.8 -1.41
20 1976 1784 138.9 -88 -29 -55 50.6% +0.13 8–3 (73%) 3–2 (60%) 108.4 -3.02
21 1977 1668 111.1 -42 +4 +35 28.2% -1.69 2–3 (40%) 2–1 (67%) 99.1 -0.17
22 1978 1740 124.2 -82 +35 55.9% +0.24 4–5 (44%) 5–6 (45%) 100.3 +1.24
23 1979 1698 126.9 -30 -52 +32 36.8% -1.15 10–5 (67%) 7–2 (78%) 110.6 -0.20
24 1980 1619 104.5 -41 6.7% -3.20 0–1 0–2 -0.75
26 1982 1599 97.0 33.3% -2.67 0–1 +0.16
30 1968 1483 101.5 +21 51.9% +0.33 1–4 (20%) +0.64
31 1969 1490 108.0 +121 -18 48.3% +0.38 3–2 (60%) +2.24
32 1970 1500 107.7 -61 47.1% -0.12 1–2 (33%) +0.91
33 1971 1493 106.2 +129 -41 40.0% -0.60 1–2 (33%) +1.00
34 1972 1500 102.9 +75 33.3% -1.00 +0.05
36 1974 1482 96.9 0.0% -3.00 +0.33
Career 1546 107.2 +102 -20 45.1% -0.09 6–10 (38%) +12.02 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.