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

Billie Jean King vs Betsy Nagelsen H2H: 2-0

Billie Jean King holds a 2–0 lead over Betsy Nagelsen in their WTA head-to-head. Across 2 main-draw meetings, Billie Jean King leads 2–0 on grass. Most recently, Billie Jean King won the 1982 Birmingham semifinal 6-3 6-7 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.

Billie Jean King
USA Age 82 Right-Handed 164 cm / 5'5"
H2H
2 – 0
2 main-draw meetings
Betsy Nagelsen
USA Age 69 Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Billie Jean King 6-3 6-7 6-4 Betsy Nagelsen Match data Jun 12, 1982* SF Birmingham WTA 250 Grass
Billie Jean King 6-4 6-2 Betsy Nagelsen Match data Sep 5, 1974* R16 US Open 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
Billie Jean King #22 #2 — 2,437 684 160 81.0% 8 0 0 3 57 68
Betsy Nagelsen #692 #25 28 1,890 266 324 45.1% 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.

Age Billie Jean King Betsy Nagelsen
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 1972 4–2 66.7% — 1,511 0 1
16 — — — — — — — 1973 1–3 25.0% — 1,494 0 1
17 — — — — — — — 1974 27–18 60.0% — 1,724 0 3
18 — — — — — — — 1975 18–17 51.4% — 1,790 0 3
19 — — — — — — — 1976 11–19 36.7% — 1,709 0 3
20 — — — — — — — 1977 8–15 34.8% — 1,678 0 3
21 — — — — — — — 1978 13–24 35.1% — 1,659 0 3
22 — — — — — — — 1979 18–19 48.6% — 1,694 0 5
23 — — — — — — — 1980 22–27 44.9% — 1,753 0 5
24 1968 40–5 88.9% — 1,865 1 1 1981 20–21 48.8% — 1,806 0 6
25 1969 58–14 80.6% — 2,056 1 6 1982 12–17 41.4% — 1,705 0 6
26 1970 47–11 81.0% — 2,180 1 11 1983 18–22 45.0% — 1,692 0 6
27 1971 114–15 88.4% — 2,302 2 28 1984 11–18 37.9% #77 1,630 0 6
28 1972 89–15 85.6% — 2,378 5 39 1985 14–12 53.8% #81 1,713 0 6
29 1973 56–12 82.4% — 2,349 6 46 1986 18–17 51.4% #46 1,699 0 6
30 1974 54–8 87.1% — 2,326 7 52 1987 13–15 46.4% #61 1,645 0 6
31 1975 23–3 88.5% #4 2,391 8 54 1988 11–19 36.7% #109 1,585 0 6
32 1976 2–2 50.0% — 2,336 8 54 1989 18–15 54.5% #45 1,662 0 6
33 1977 46–6 88.5% #2 2,398 8 60 1990 8–12 40.0% #96 1,639 0 6
34 1978 28–12 70.0% #5 2,336 8 60 1991 0–2 0.0% #337 1,607 0 6
35 1979 36–13 73.5% #5 2,185 8 62 1992 1–5 16.7% #418 1,561 0 6
36 1980 39–15 72.2% #6 2,151 8 65 1993 0–4 0.0% #394 1,510 0 6
37 1981 4–5 44.4% — 2,043 8 65 1994 0–1 0.0% #692 1,509 0 6
38 1982 26–19 57.8% — 1,941 8 66 — — — — — — —
39 1983 22–5 81.5% — 2,057 8 68 — — — — — — —

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 Billie Jean King Betsy Nagelsen
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 %
15 — — — — — — — — — — — — — — — — — 1972 — — — — 2 1 3 66.7% 0 1 1 0.0% — — — —
16 — — — — — — — — — — — — — — — — — 1973 1 1 2 50.0% 0 2 2 0.0% — — — — — — — —
17 — — — — — — — — — — — — — — — — — 1974 3 2 5 60.0% 6 6 12 50.0% 13 6 19 68.4% 0 4 4 0.0%
18 — — — — — — — — — — — — — — — — — 1975 5 5 10 50.0% 6 5 11 54.5% 2 3 5 40.0% 0 1 1 0.0%
19 — — — — — — — — — — — — — — — — — 1976 0 2 2 0.0% 5 11 16 31.3% 3 3 6 50.0% 3 3 6 50.0%
20 — — — — — — — — — — — — — — — — — 1977 3 3 6 50.0% 1 4 5 20.0% 3 5 8 37.5% 1 3 4 25.0%
21 — — — — — — — — — — — — — — — — — 1978 3 7 10 30.0% 4 6 10 40.0% 5 5 10 50.0% 1 6 7 14.3%
22 — — — — — — — — — — — — — — — — — 1979 4 7 11 36.4% 0 2 2 0.0% 4 4 8 50.0% 2 6 8 25.0%
23 — — — — — — — — — — — — — — — — — 1980 7 7 14 50.0% 0 2 2 0.0% 10 7 17 58.8% 5 11 16 31.3%
24 1968 4 1 5 80.0% 4 1 5 80.0% 26 2 28 92.9% 6 1 7 85.7% 1981 5 6 11 45.5% 1 4 5 20.0% 11 4 15 73.3% 3 7 10 30.0%
25 1969 17 1 18 94.4% 9 5 14 64.3% 26 7 33 78.8% 6 1 7 85.7% 1982 2 4 6 33.3% 2 3 5 40.0% 3 3 6 50.0% 5 7 12 41.7%
26 1970 13 2 15 86.7% 18 5 23 78.3% 8 1 9 88.9% 8 3 11 72.7% 1983 2 7 9 22.2% 2 5 7 28.6% 4 5 9 44.4% 7 4 11 63.6%
27 1971 16 3 19 84.2% 29 5 34 85.3% 28 5 33 84.8% 41 2 43 95.3% 1984 9 7 16 56.3% 0 4 4 0.0% 2 7 9 22.2% — — — —
28 1972 20 3 23 87.0% 32 6 38 84.2% 22 1 23 95.7% 15 5 20 75.0% 1985 6 5 11 54.5% 0 1 1 0.0% 7 5 12 58.3% 1 1 2 50.0%
29 1973 14 3 17 82.4% 8 3 11 72.7% 12 1 13 92.3% 22 5 27 81.5% 1986 6 10 16 37.5% 0 1 1 0.0% 7 3 10 70.0% 5 3 8 62.5%
30 1974 12 3 15 80.0% 4 1 5 80.0% 9 1 10 90.0% 29 3 32 90.6% 1987 8 6 14 57.1% — — — — 5 5 10 50.0% 0 4 4 0.0%
31 1975 7 2 9 77.8% — — — — 11 1 12 91.7% 5 0 5 100.0% 1988 5 13 18 27.8% — — — — 4 5 9 44.4% 2 1 3 66.7%
32 1976 2 2 4 50.0% — — — — — — — — — — — — 1989 12 10 22 54.5% — — — — 6 3 9 66.7% 0 2 2 0.0%
33 1977 20 0 20 100.0% 8 3 11 72.7% 6 2 8 75.0% 12 1 13 92.3% 1990 3 7 10 30.0% 0 2 2 0.0% 5 3 8 62.5% — — — —
34 1978 4 2 6 66.7% — — — — 8 2 10 80.0% 16 8 24 66.7% 1991 — — — — — — — — 0 2 2 0.0% — — — —
35 1979 17 3 20 85.0% — — — — 12 5 17 70.6% 7 5 12 58.3% 1992 0 2 2 0.0% — — — — 1 1 2 50.0% 0 2 2 0.0%
36 1980 5 1 6 83.3% 3 2 5 60.0% 3 1 4 75.0% 28 11 39 71.8% 1993 0 2 2 0.0% — — — — — — — — 0 2 2 0.0%
37 1981 — — — — 0 1 1 0.0% 0 1 1 0.0% 4 3 7 57.1% 1994 0 1 1 0.0% — — — — — — — — — — — —
38 1982 0 2 2 0.0% 4 4 8 50.0% 13 4 17 76.5% 9 9 18 50.0% — — — — — — — — — — — — — — — — —
39 1983 — — — — 1 1 2 50.0% 16 2 18 88.9% 5 2 7 71.4% — — — — — — — — — — — — — — — — —
Career — 151 28 179 84.4% 120 37 157 76.4% 200 36 236 84.7% 213 59 272 78.3% — 84 114 198 42.4% 29 59 88 33.0% 95 80 175 54.3% 35 67 102 34.3%

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 Billie Jean King Betsy Nagelsen
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
15 — — — — — — — — — — — — — — — — 1972 1511 98.7 — — — — — +28 — 53.8% +0.23 2–1 (67%) 1–1 — +0.77
16 — — — — — — — — — — — — — — — — 1973 1495 98.7 — — — — — — — 40.0% -1.00 0–2 1–0 — +0.55
17 — — — — — — — — — — — — — — — — 1974 1725 133.0 — — — — -176 -202 +77 57.7% +0.46 8–6 (57%) 5–6 (45%) 103.4 +0.58
18 — — — — — — — — — — — — — — — — 1975 1791 125.1 — — — — -124 -166 -38 45.7% -0.44 4–4 (50%) 3–3 (50%) 101.5 -3.05
19 — — — — — — — — — — — — — — — — 1976 1709 124.2 — — — — -65 -116 +70 41.4% -0.76 3–7 (30%) 1–1 — -1.73
20 — — — — — — — — — — — — — — — — 1977 1678 123.8 — — — — -30 -105 +46 37.9% -0.62 6–6 (50%) 1–2 (33%) — +0.05
21 — — — — — — — — — — — — — — — — 1978 1659 129.6 — — — — -99 -85 +99 40.7% -0.58 4–10 (29%) 3–7 (30%) 92.4 -0.84
22 — — — — — — — — — — — — — — — — 1979 1695 122.8 — — — — -132 — +12 48.9% +0.08 8–8 (50%) 1–3 (25%) 98.5 +1.65
23 — — — — — — — — — — — — — — — — 1980 1753 130.7 — — — — -148 — +40 47.9% -0.41 7–12 (37%) 6–2 (75%) 102.2 -1.78
24 1968 1865 141.1 — — — — -83 -273 +141 87.2% +2.72 6–2 (75%) — — +1.76 1981 1806 134.9 — — — — -129 -305 +99 49.5% -0.18 8–7 (53%) 5–5 (50%) 103.7 -3.53
25 1969 2056 154.1 — — — — +176 -365 +42 75.5% +2.11 12–5 (71%) — — -3.94 1982 1705 123.2 — — — — -99 -214 +170 47.3% -0.34 5–11 (31%) 9–3 (75%) 100.0 -0.40
26 1970 2181 166.1 — — — — +139 -229 +41 75.0% +2.11 11–5 (69%) 0–1 — -9.32 1983 1693 126.7 — — — — -32 -138 +114 46.3% -0.46 7–8 (47%) 7–6 (54%) 102.2 +0.98
27 1971 2303 170.6 — — — — +240 -117 +9 84.6% +2.55 20–4 (83%) 16–4 (80%) 116.1 -6.69 1984 1631 126.4 — — — — +59 -141 +117 41.4% -0.51 5–7 (42%) 7–3 (70%) 99.2 +0.69
28 1972 2378 173.1 — — — — +144 -67 +84 82.1% +2.37 13–3 (81%) 8–7 (53%) 102.1 -8.73 1985 1714 129.5 — — — — -26 — +87 54.2% +0.36 7–4 (64%) 1–2 (33%) — +1.17
29 1973 2349 168.6 — — — — +152 -82 +159 82.7% +2.42 8–5 (62%) 9–5 (64%) 100.8 -4.79 1986 1699 131.1 — — — — -55 — +171 51.8% +0.01 6–7 (46%) 4–3 (57%) 98.8 +1.66
30 1974 2327 171.4 — — — — +153 -73 +194 81.8% +2.54 10–2 (83%) 3–2 (60%) 104.2 -3.91 1987 1646 121.6 — — — — -24 — +148 46.2% 0.00 5–6 (45%) 4–5 (44%) 97.1 +1.69
31 1975 2391 169.1 — — — — +33 — +109 85.7% +2.70 2–2 (50%) 2–0 — -2.95 1988 1586 116.1 — — — — -27 — +128 42.5% -0.27 4–9 (31%) 5–8 (38%) 93.3 +1.55
32 1976 2337 113.7 — — — — +67 — — 50.0% -0.13 — 1–0 — -0.15 1989 1662 126.0 — — — — -56 — +96 50.6% +0.04 11–6 (65%) 3–4 (43%) 105.8 +1.48
33 1977 2398 164.8 — — — — +140 -140 +131 76.9% +1.69 16–1 (94%) 5–0 (100%) 111.3 -3.92 1990 1640 115.0 — — — — -81 — +173 40.0% -0.60 3–2 (60%) 2–4 (33%) 100.0 +0.09
34 1978 2337 167.5 — — — — +44 — +160 73.7% +1.86 2–6 (25%) 3–1 (75%) 92.9 -4.22 1991 1608 97.2 — — — — — — — 20.0% -2.40 0–1 — — -0.01
35 1979 2185 156.7 — — — — +75 — +139 71.4% +1.51 8–8 (50%) 9–4 (69%) 94.9 -3.21 1992 1561 105.4 — — — — -52 — — 26.7% -1.67 1–2 (33%) 1–0 — +0.03
36 1980 2152 165.5 — — — — +100 +122 +192 69.4% +1.09 9–6 (60%) 11–4 (73%) 100.7 -3.21 1993 1511 98.5 — — — — -47 — — 20.0% -2.70 0–2 0–1 — +0.17
37 1981 2044 121.4 — — — — +105 — — 44.4% -0.67 — — — -0.51 1994 1509 102.5 — — — — — — — 0.0% -5.50 — — — -0.16
38 1982 1941 150.4 — — — — -6 +196 +304 56.2% +0.42 12–7 (63%) 7–5 (58%) 98.0 -2.64 — — — — — — — — — — — — — — — —
39 1983 2057 155.9 — — — — -43 — +231 79.3% +1.93 2–2 (50%) 0–2 — -1.11 — — — — — — — — — — — — — — — —
Career — 2437 170.4 — — — — +124 -123 +121 77.5% +2.03 131–58 (69%) 74–35 (68%) 111.2 -6.96 — 1891 131.9 — — — — -73 -148 +94 46.5% -0.28 104–128 (45%) 70–69 (50%) 101.1 +0.27

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.