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

Janet Newberry vs Iris Riedel Kuhn H2H: 2-0

Janet Newberry holds a 2–0 lead over Iris Riedel Kuhn in their WTA head-to-head. Across 2 main-draw meetings, Janet Newberry leads 2–0 on clay. Most recently, Janet Newberry won the 1977 Canadian Open round of 32 6-4 6-3.

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Janet Newberry
USA Age 73 Right-Handed 170 cm / 5'7"
H2H
2 – 0
2 main-draw meetings
Iris Riedel Kuhn
FRG Age 72

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Janet Newberry 6-4 6-3 Iris Riedel Kuhn Match data Aug 18, 1977* R32 Canadian Open WTA 250 Clay
Janet Newberry 6-3 6-1 Iris Riedel Kuhn Match data May 21, 1977* QF Italian Open 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
Janet Newberry — — — 1,922 238 187 56.0% 0 0 0 1 7 8
Iris Riedel Kuhn — — — 1,845 104 96 52.0% 0 0 0 0 7 7

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 Janet Newberry Iris Riedel Kuhn
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 1968 7–5 58.3% — 1,542 0 0 — — — — — — —
15 1969 13–6 68.4% — 1,631 0 2 — — — — — — —
16 1970 20–7 74.1% — 1,718 0 5 — — — — — — —
17 1971 15–9 62.5% — 1,757 0 5 — — — — — — —
18 1972 20–17 54.1% — 1,707 0 5 1972 1–2 33.3% — 1,484 0 0
19 1973 32–24 57.1% — 1,851 0 5 1973 0–1 0.0% — 1,479 0 0
20 1974 22–22 50.0% — 1,812 0 5 1974 2–4 33.3% — 1,490 0 0
21 1975 31–22 58.5% — 1,903 0 6 1975 16–13 55.2% — 1,684 0 0
22 1976 14–10 58.3% — 1,862 0 6 1976 10–15 40.0% — 1,679 0 0
23 1977 25–22 53.2% — 1,875 0 7 1977 13–14 48.1% — 1,706 0 0
24 1978 15–14 51.7% — 1,831 0 7 1978 13–10 56.5% — 1,694 0 1
25 1979 12–21 36.4% — 1,680 0 7 1979 5–9 35.7% — 1,685 0 1
26 1980 12–8 60.0% — 1,643 0 8 1980 28–9 75.7% — 1,820 0 4
27 — — — — — — — 1981 15–13 53.6% — 1,730 0 7
28 — — — — — — — 1982 1–6 14.3% — 1,627 0 7

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 Janet Newberry Iris Riedel Kuhn
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 7 5 12 58.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
15 1969 12 4 16 75.0% — — — — 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
16 1970 15 3 18 83.3% 2 1 3 66.7% 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
17 1971 2 2 4 50.0% 1 1 2 50.0% 12 6 18 66.7% — — — — — — — — — — — — — — — — — — — — —
18 1972 6 4 10 60.0% 6 6 12 50.0% 6 6 12 50.0% — — — — 1972 1 1 2 50.0% 0 1 1 0.0% — — — — — — — —
19 1973 6 5 11 54.5% 10 5 15 66.7% 8 5 13 61.5% 8 9 17 47.1% 1973 — — — — 0 1 1 0.0% — — — — — — — —
20 1974 4 5 9 44.4% 1 4 5 20.0% 8 4 12 66.7% 9 9 18 50.0% 1974 — — — — 2 4 6 33.3% — — — — — — — —
21 1975 7 5 12 58.3% 20 9 29 69.0% 3 2 5 60.0% 1 6 7 14.3% 1975 — — — — 14 10 24 58.3% 1 1 2 50.0% 1 2 3 33.3%
22 1976 1 2 3 33.3% 9 4 13 69.2% 2 2 4 50.0% 2 2 4 50.0% 1976 0 1 1 0.0% 6 7 13 46.2% 0 1 1 0.0% 4 6 10 40.0%
23 1977 4 4 8 50.0% 13 7 20 65.0% 3 3 6 50.0% 5 8 13 38.5% 1977 0 2 2 0.0% 13 9 22 59.1% 0 1 1 0.0% 0 2 2 0.0%
24 1978 1 2 3 33.3% 7 5 12 58.3% 5 3 8 62.5% 2 4 6 33.3% 1978 — — — — 5 5 10 50.0% 1 3 4 25.0% 2 2 4 50.0%
25 1979 2 4 6 33.3% 2 5 7 28.6% 5 5 10 50.0% 1 5 6 16.7% 1979 0 1 1 0.0% 3 5 8 37.5% 1 1 2 50.0% 0 1 1 0.0%
26 1980 6 5 11 54.5% 1 1 2 50.0% 4 0 4 100.0% — — — — 1980 — — — — 25 7 32 78.1% — — — — 1 1 2 50.0%
27 — — — — — — — — — — — — — — — — — 1981 — — — — 12 7 19 63.2% 0 1 1 0.0% 0 1 1 0.0%
28 — — — — — — — — — — — — — — — — — 1982 — — — — 1 6 7 14.3% — — — — — — — —
Career — 73 50 123 59.3% 72 48 120 60.0% 60 41 101 59.4% 28 43 71 39.4% — 1 5 6 16.7% 81 62 143 56.6% 3 8 11 27.3% 8 15 23 34.8%

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 Janet Newberry Iris Riedel Kuhn
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 1542 104.3 — — — — +45 — — 55.6% +0.41 2–1 (67%) — — +0.69 — — — — — — — — — — — — — — — —
15 1969 1632 120.1 — — — — +106 — -86 67.4% +1.19 2–3 (40%) — — +1.11 — — — — — — — — — — — — — — — —
16 1970 1719 128.8 — — — — +177 -163 -147 70.0% +1.70 4–4 (50%) 0–1 — +3.95 — — — — — — — — — — — — — — — —
17 1971 1758 132.0 — — — — +111 — -30 56.9% +0.65 4–1 (80%) — — +0.89 — — — — — — — — — — — — — — — —
18 1972 1707 131.6 — — — — +164 -98 -1 54.3% +0.39 5–4 (56%) 0–2 — -0.95 1972 1485 97.6 — — — — — — — 33.3% -1.33 — 1–0 — +0.37
19 1973 1852 140.9 — — — — -29 -44 -119 55.8% +0.08 11–8 (58%) 7–1 (88%) 106.5 -4.59 1973 1479 104.1 — — — — — — — 0.0% -3.50 — — — -0.12
20 1974 1813 140.5 — — — — -4 -63 -20 50.5% +0.13 4–5 (44%) 5–5 (50%) 99.4 -2.47 1974 1491 113.8 — — — — — +14 — 45.5% -0.64 0–1 — — +0.12
21 1975 1904 152.7 — — — — -63 +15 -117 57.6% +0.47 6–6 (50%) 6–1 (86%) 104.5 -5.60 1975 1685 137.0 — — — — -42 +13 — 53.7% +0.22 7–6 (54%) 5–3 (63%) 104.4 -0.17
22 1976 1863 123.7 — — — — -83 +57 -40 51.8% -0.23 7–1 (88%) 3–1 (75%) 107.1 -1.77 1976 1680 125.4 — — — — -69 +22 — 41.4% -0.64 4–4 (50%) 1–0 — -0.74
23 1977 1875 146.0 — — — — -74 +55 -101 52.8% +0.28 6–6 (50%) 2–5 (29%) 95.9 -3.22 1977 1706 135.3 — — — — -154 +71 — 48.4% -0.23 4–4 (50%) 1–2 (33%) 99.3 -1.31
24 1978 1831 138.7 — — — — -69 +30 +11 50.7% +0.12 5–4 (56%) 0–4 (0%) 95.6 -2.30 1978 1694 124.7 — — — — -99 -10 -173 58.5% +0.91 2–5 (29%) 1–1 — +2.71
25 1979 1681 129.3 — — — — +2 +125 +112 39.1% -0.90 2–3 (40%) 4–4 (50%) 97.3 +0.41 1979 1685 123.5 — — — — — +33 — 41.9% -1.35 2–3 (40%) 1–0 — -1.31
26 1980 1644 112.8 — — — — -10 — +207 60.0% +0.76 4–3 (57%) 1–1 — +2.97 1980 1820 140.6 — — — — — +136 — 72.7% +1.95 5–4 (56%) 1–3 (25%) 99.3 +1.28
27 — — — — — — — — — — — — — — — — 1981 1730 122.0 — — — — — +227 — 51.7% -0.26 4–2 (67%) 3–0 (100%) 103.5 -0.12
28 — — — — — — — — — — — — — — — — 1982 1627 97.1 — — — — — +128 — 29.4% -1.12 0–3 (0%) 0–2 — +0.33
Career — 1922 142.9 — — — — +13 +8 -28 54.9% +0.32 62–49 (56%) 28–25 (53%) 101.7 -2.59 — 1845 136.1 — — — — -86 +85 -173 52.5% +0.14 28–32 (47%) 14–11 (56%) 99.6 +0.53

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.