H2H data updated: 2026-10-29 00:00 UTC

Betsy Nagelsen vs Petra Delhees Jauch H2H: 0-1

Petra Delhees Jauch holds a 1–0 lead over Betsy Nagelsen in their WTA head-to-head. Across 1 main-draw meeting, Petra Delhees Jauch leads 1–0 on clay. Most recently, Petra Delhees Jauch won the 1978 Gstaad round of 16 UNK.

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Betsy Nagelsen
USA Age 70 Right-Handed 175 cm / 5'9"
H2H
0 – 1
1 main-draw meetings
Petra Delhees Jauch
SUI

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Petra Delhees Jauch UNK Betsy Nagelsen Match data Jul 14, 1978* R16 Gstaad 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
Betsy Nagelsen — #25 28 1,892 266 324 45.1% 0 0 0 0 6 6
Petra Delhees Jauch — — — 1,719 69 91 43.1% 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.

Betsy Nagelsen Petra Delhees Jauch
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1972 4–2 66.7% — 1,511 0 1 1975 0–1 0.0% — 1,483 0 0
1973 1–3 25.0% — 1,494 0 1 1976 0–3 0.0% — 1,466 0 0
1974 27–18 60.0% — 1,724 0 3 1977 0–1 0.0% — 1,450 0 0
1975 18–17 51.4% — 1,790 0 3 1978 6–6 50.0% — 1,532 0 0
1976 11–19 36.7% — 1,707 0 3 1979 12–8 60.0% — 1,652 0 1
1977 8–15 34.8% — 1,677 0 3 1980 5–12 29.4% — 1,578 0 1
1978 13–24 35.1% — 1,657 0 3 1981 6–10 37.5% — 1,583 0 1
1979 18–19 48.6% — 1,694 0 5 1982 10–17 37.0% — 1,618 0 1
1980 22–27 44.9% — 1,755 0 5 1983 15–15 50.0% — 1,673 0 1
1981 20–21 48.8% — 1,808 0 6 1984 4–9 30.8% — 1,641 0 1
1982 12–17 41.4% — 1,706 0 6 1985 11–9 55.0% — 1,705 0 1
1983 18–22 45.0% — 1,693 0 6 — — — — — — —
1984 11–18 37.9% #77 1,631 0 6 — — — — — — —
1985 14–12 53.8% — 1,714 0 6 — — — — — — —
1986 18–17 51.4% #46 1,699 0 6 — — — — — — —
1987 13–15 46.4% #61 1,646 0 6 — — — — — — —
1988 11–19 36.7% #109 1,586 0 6 — — — — — — —
1989 18–15 54.5% #45 1,662 0 6 — — — — — — —
1990 8–12 40.0% #96 1,640 0 6 — — — — — — —
1991 0–2 0.0% — 1,608 0 6 — — — — — — —
1992 1–5 16.7% #418 1,561 0 6 — — — — — — —
1993 0–4 0.0% — 1,511 0 6 — — — — — — —
1994 0–1 0.0% — 1,509 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.

Betsy Nagelsen Petra Delhees Jauch
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 %
1972 — — — — 2 1 3 66.7% 0 1 1 0.0% — — — — 1975 — — — — 0 1 1 0.0% — — — — — — — —
1973 1 1 2 50.0% 0 2 2 0.0% — — — — — — — — 1976 — — — — 0 2 2 0.0% 0 1 1 0.0% — — — —
1974 3 2 5 60.0% 6 6 12 50.0% 13 6 19 68.4% 0 4 4 0.0% 1977 — — — — — — — — — — — — 0 1 1 0.0%
1975 5 5 10 50.0% 6 5 11 54.5% 2 3 5 40.0% 0 1 1 0.0% 1978 — — — — 5 2 7 71.4% 1 3 4 25.0% — — — —
1976 0 2 2 0.0% 5 11 16 31.3% 3 3 6 50.0% 3 3 6 50.0% 1979 1 1 2 50.0% 1 2 3 33.3% 1 3 4 25.0% 3 1 4 75.0%
1977 3 3 6 50.0% 1 4 5 20.0% 3 5 8 37.5% 1 3 4 25.0% 1980 0 1 1 0.0% 3 6 9 33.3% — — — — 2 5 7 28.6%
1978 3 7 10 30.0% 4 6 10 40.0% 5 5 10 50.0% 1 6 7 14.3% 1981 — — — — 5 7 12 41.7% 1 2 3 33.3% 0 1 1 0.0%
1979 4 7 11 36.4% 0 2 2 0.0% 4 4 8 50.0% 2 6 8 25.0% 1982 1 3 4 25.0% 5 6 11 45.5% 2 5 7 28.6% 2 3 5 40.0%
1980 7 7 14 50.0% 0 2 2 0.0% 10 7 17 58.8% 5 11 16 31.3% 1983 6 5 11 54.5% 7 7 14 50.0% 1 1 2 50.0% 1 2 3 33.3%
1981 5 6 11 45.5% 1 4 5 20.0% 11 4 15 73.3% 3 7 10 30.0% 1984 3 2 5 60.0% 1 6 7 14.3% 0 1 1 0.0% — — — —
1982 2 4 6 33.3% 2 3 5 40.0% 3 3 6 50.0% 5 7 12 41.7% 1985 1 2 3 33.3% 10 7 17 58.8% — — — — — — — —
1983 2 7 9 22.2% 2 5 7 28.6% 4 5 9 44.4% 7 4 11 63.6% — — — — — — — — — — — — — — — — —
1984 9 7 16 56.3% 0 4 4 0.0% 2 7 9 22.2% — — — — — — — — — — — — — — — — — — — — —
1985 6 5 11 54.5% 0 1 1 0.0% 7 5 12 58.3% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
1986 6 10 16 37.5% 0 1 1 0.0% 7 3 10 70.0% 5 3 8 62.5% — — — — — — — — — — — — — — — — —
1987 8 6 14 57.1% — — — — 5 5 10 50.0% 0 4 4 0.0% — — — — — — — — — — — — — — — — —
1988 5 13 18 27.8% — — — — 4 5 9 44.4% 2 1 3 66.7% — — — — — — — — — — — — — — — — —
1989 12 10 22 54.5% — — — — 6 3 9 66.7% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
1990 3 7 10 30.0% 0 2 2 0.0% 5 3 8 62.5% — — — — — — — — — — — — — — — — — — — — —
1991 — — — — — — — — 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — —
1992 0 2 2 0.0% — — — — 1 1 2 50.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
1993 0 2 2 0.0% — — — — — — — — 0 2 2 0.0% — — — — — — — — — — — — — — — — —
1994 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 84 114 198 42.4% 29 59 88 33.0% 95 80 175 54.3% 35 67 102 34.3% Career 12 14 26 46.2% 37 46 83 44.6% 6 16 22 27.3% 8 13 21 38.1%

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.

Betsy Nagelsen Petra Delhees Jauch
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
1972 1511 98.7 — — — — — +28 — 53.8% +0.23 2–1 (67%) 1–1 — +0.77 1975 1484 96.6 — — — — — — — 0.0% -3.00 — — — +0.24
1973 1495 98.7 — — — — — — — 40.0% -1.00 0–2 1–0 — +0.54 1976 1467 98.7 — — — — — — — 0.0% -3.67 — — — -0.20
1974 1725 133.0 — — — — -176 -202 +77 57.7% +0.46 8–6 (57%) 5–6 (45%) 103.4 +0.49 1977 1450 96.1 — — — — — — — 0.0% -3.50 — — — +0.42
1975 1791 125.1 — — — — -124 -166 -38 45.7% -0.44 4–4 (50%) 3–3 (50%) 101.5 -3.24 1978 1533 116.6 — — — — — +54 -8 39.1% -0.96 2–1 (67%) 1–1 — -0.16
1976 1708 124.4 — — — — -64 -115 +73 41.4% -0.76 3–7 (30%) 1–1 — -1.59 1979 1653 121.5 — — — — -20 -54 -125 54.8% +0.14 5–1 (83%) 1–2 (33%) — +0.76
1977 1678 124.1 — — — — -30 -106 +48 37.9% -0.62 6–6 (50%) 1–2 (33%) — +0.11 1980 1579 121.5 — — — — -24 -11 — 35.9% -0.79 1–4 (20%) 1–4 (20%) 94.8 +1.07
1978 1658 129.7 — — — — -102 -84 +101 41.2% -0.57 4–11 (27%) 3–7 (30%) 91.9 -1.33 1981 1583 118.6 — — — — — +14 -36 42.1% -0.21 2–4 (33%) 1–3 (25%) 97.4 +0.79
1979 1695 123.1 — — — — -131 — +13 48.9% +0.08 8–8 (50%) 1–3 (25%) 98.5 +1.74 1982 1619 133.2 — — — — -50 -26 -56 41.7% -0.78 1–5 (17%) 4–1 (80%) 99.1 -1.92
1980 1756 131.7 — — — — -144 — +38 47.9% -0.41 7–12 (37%) 6–2 (75%) 102.2 -2.08 1983 1674 123.0 — — — — -60 +20 — 48.5% -0.05 4–2 (67%) 2–4 (33%) 101.7 +0.97
1981 1809 135.3 — — — — -128 -307 +95 49.5% -0.18 8–7 (53%) 5–5 (50%) 103.7 -3.62 1984 1642 109.6 — — — — -13 -26 — 36.7% -1.13 1–3 (25%) 1–0 — -0.16
1982 1706 123.4 — — — — -98 -215 +169 47.3% -0.34 5–11 (31%) 9–3 (75%) 100.0 +0.16 1985 1706 132.5 — — — — -87 +6 — 56.5% +0.17 2–4 (33%) 1–1 — -1.20
1983 1693 127.0 — — — — -32 -138 +114 46.3% -0.46 7–8 (47%) 7–6 (54%) 102.2 +0.86 — — — — — — — — — — — — — — — —
1984 1632 126.6 — — — — +58 -142 +116 41.4% -0.51 5–7 (42%) 7–3 (70%) 99.2 +0.78 — — — — — — — — — — — — — — — —
1985 1714 129.7 — — — — -25 — +88 54.2% +0.36 7–4 (64%) 1–2 (33%) — +1.14 — — — — — — — — — — — — — — — —
1986 1700 131.2 — — — — -55 — +170 51.8% +0.01 6–7 (46%) 4–3 (57%) 98.8 +1.52 — — — — — — — — — — — — — — — —
1987 1646 121.7 — — — — -24 — +150 46.2% 0.00 5–6 (45%) 4–5 (44%) 97.1 +1.59 — — — — — — — — — — — — — — — —
1988 1586 116.1 — — — — -26 — +128 42.5% -0.27 4–9 (31%) 5–8 (38%) 93.3 +1.50 — — — — — — — — — — — — — — — —
1989 1663 126.1 — — — — -56 — +97 50.6% +0.04 11–6 (65%) 3–4 (43%) 105.8 +1.46 — — — — — — — — — — — — — — — —
1990 1640 115.1 — — — — -81 — +173 40.0% -0.60 3–2 (60%) 2–4 (33%) 100.0 +0.09 — — — — — — — — — — — — — — — —
1991 1608 97.2 — — — — — — — 20.0% -2.40 0–1 — — -0.01 — — — — — — — — — — — — — — — —
1992 1561 105.4 — — — — -50 — — 26.7% -1.67 1–2 (33%) 1–0 — +0.03 — — — — — — — — — — — — — — — —
1993 1511 98.5 — — — — -47 — — 20.0% -2.70 0–2 0–1 — +0.17 — — — — — — — — — — — — — — — —
1994 1509 102.5 — — — — — — — 0.0% -5.50 — — — -0.16 — — — — — — — — — — — — — — — —
Career 1893 132.2 — — — — -73 -148 +94 46.5% -0.28 104–129 (45%) 70–69 (50%) 101.0 +0.16 Career 1720 129.6 — — — — -43 +2 -57 44.1% -0.47 18–24 (43%) 12–16 (43%) 99.1 +0.38

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.