H2H data updated: 2026-09-13 00:00 UTC
Helga Masthoff holds a 4–3 lead over Billie Jean King in their WTA head-to-head. Across 7 main-draw meetings, Helga Masthoff leads 4–3 on clay. Most recently, Billie Jean King won the 1972 Roland Garros semifinal 6-4 6-4.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Billie Jean King | 6-4 6-4 | Helga Masthoff | Match data | Jun 3, 1972* | SF | Roland Garros | Grand Slam | Clay |
| Helga Masthoff | 2-6 6-4 7-6(2) | Billie Jean King | Match data | Jul 7, 1971* | SF | Venice | WTA 250 | Clay |
| Billie Jean King | 6-3 6-4 | Helga Masthoff | Match data | May 23, 1971* | F | Hamburg Open | WTA 250 | Clay |
| Helga Masthoff | 2-6 8-6 6-1 | Billie Jean King | Match data | Jun 5, 1970* | QF | Roland Garros | Grand Slam | Clay |
| Helga Masthoff | 7-5 6-3 | Billie Jean King | Match data | May 16, 1970* | SF | Berlin Open | WTA 500 | Clay |
| Billie Jean King | 1-6 6-2 6-4 | Helga Masthoff | Match data | Apr 26, 1970* | QF | Italian Open | WTA 250 | Clay |
| Helga Masthoff | 7-5 6-3 | Billie Jean King | Match data | Nov 16, 1969* | SF | Buenos Aires | 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.
| 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 |
| Helga Masthoff | — | — | — | 2,113 | 391 | 115 | 77.3% | 0 | 0 | 0 | 4 | 46 | 50 |
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 | Helga Masthoff | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 24 | 1968 | 40–5 | 88.9% | — | 1,865 | 1 | 1 | — | — | — | — | — | — | — |
| 25 | 1969 | 58–14 | 80.6% | — | 2,056 | 1 | 6 | — | — | — | — | — | — | — |
| 26 | 1970 | 47–11 | 81.0% | — | 2,180 | 1 | 11 | 1968 | 29–13 | 69.0% | — | 1,730 | 0 | 1 |
| 27 | 1971 | 114–15 | 88.4% | — | 2,302 | 2 | 28 | 1969 | 45–13 | 77.6% | — | 1,906 | 0 | 10 |
| 28 | 1972 | 89–15 | 85.6% | — | 2,378 | 5 | 39 | 1970 | 53–12 | 81.5% | — | 2,047 | 0 | 15 |
| 29 | 1973 | 56–12 | 82.4% | — | 2,349 | 6 | 46 | 1971 | 42–9 | 82.4% | — | 2,084 | 0 | 23 |
| 30 | 1974 | 54–8 | 87.1% | — | 2,326 | 7 | 52 | 1972 | 29–12 | 70.7% | — | 2,023 | 0 | 27 |
| 31 | 1975 | 23–3 | 88.5% | #4 | 2,391 | 8 | 54 | 1973 | 40–13 | 75.5% | — | 2,087 | 0 | 30 |
| 32 | 1976 | 2–2 | 50.0% | — | 2,336 | 8 | 54 | 1974 | 27–10 | 73.0% | — | 2,019 | 0 | 33 |
| 33 | 1977 | 46–6 | 88.5% | #2 | 2,398 | 8 | 60 | 1975 | 25–8 | 75.8% | — | 1,998 | 0 | 37 |
| 34 | 1978 | 28–12 | 70.0% | #5 | 2,336 | 8 | 60 | 1976 | 34–8 | 81.0% | — | 1,950 | 0 | 42 |
| 35 | 1979 | 36–13 | 73.5% | #5 | 2,185 | 8 | 62 | 1977 | 18–4 | 81.8% | — | 1,941 | 0 | 45 |
| 36 | 1980 | 39–15 | 72.2% | #6 | 2,151 | 8 | 65 | 1978 | 13–5 | 72.2% | — | 1,895 | 0 | 45 |
| 37 | 1981 | 4–5 | 44.4% | — | 2,043 | 8 | 65 | 1979 | 10–1 | 90.9% | — | 1,930 | 0 | 48 |
| 38 | 1982 | 26–19 | 57.8% | — | 1,941 | 8 | 66 | 1980 | 26–7 | 78.8% | — | 1,873 | 0 | 50 |
| 39 | 1983 | 22–5 | 81.5% | — | 2,057 | 8 | 68 | — | — | — | — | — | — | — |
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 | Helga Masthoff | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | |||||||||||||||||||||||||
| 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 % | |||
| 24 | 1968 | 4 | 1 | 5 | 80.0% | 4 | 1 | 5 | 80.0% | 26 | 2 | 28 | 92.9% | 6 | 1 | 7 | 85.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 1969 | 17 | 1 | 18 | 94.4% | 9 | 5 | 14 | 64.3% | 26 | 7 | 33 | 78.8% | 6 | 1 | 7 | 85.7% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1970 | 13 | 2 | 15 | 86.7% | 18 | 5 | 23 | 78.3% | 8 | 1 | 9 | 88.9% | 8 | 3 | 11 | 72.7% | 1968 | 2 | 2 | 4 | 50.0% | 22 | 7 | 29 | 75.9% | 1 | 1 | 2 | 50.0% | 4 | 3 | 7 | 57.1% |
| 27 | 1971 | 16 | 3 | 19 | 84.2% | 29 | 5 | 34 | 85.3% | 28 | 5 | 33 | 84.8% | 41 | 2 | 43 | 95.3% | 1969 | 3 | 3 | 6 | 50.0% | 39 | 7 | 46 | 84.8% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 28 | 1972 | 20 | 3 | 23 | 87.0% | 32 | 6 | 38 | 84.2% | 22 | 1 | 23 | 95.7% | 15 | 5 | 20 | 75.0% | 1970 | — | — | — | — | 45 | 10 | 55 | 81.8% | 3 | 1 | 4 | 75.0% | 5 | 1 | 6 | 83.3% |
| 29 | 1973 | 14 | 3 | 17 | 82.4% | 8 | 3 | 11 | 72.7% | 12 | 1 | 13 | 92.3% | 22 | 5 | 27 | 81.5% | 1971 | 5 | 2 | 7 | 71.4% | 35 | 5 | 40 | 87.5% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 30 | 1974 | 12 | 3 | 15 | 80.0% | 4 | 1 | 5 | 80.0% | 9 | 1 | 10 | 90.0% | 29 | 3 | 32 | 90.6% | 1972 | — | — | — | — | 28 | 8 | 36 | 77.8% | 0 | 1 | 1 | 0.0% | 1 | 3 | 4 | 25.0% |
| 31 | 1975 | 7 | 2 | 9 | 77.8% | — | — | — | — | 11 | 1 | 12 | 91.7% | 5 | 0 | 5 | 100.0% | 1973 | — | — | — | — | 34 | 10 | 44 | 77.3% | 4 | 1 | 5 | 80.0% | 2 | 2 | 4 | 50.0% |
| 32 | 1976 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 1974 | — | — | — | — | 24 | 8 | 32 | 75.0% | 3 | 1 | 4 | 75.0% | 0 | 1 | 1 | 0.0% |
| 33 | 1977 | 20 | 0 | 20 | 100.0% | 8 | 3 | 11 | 72.7% | 6 | 2 | 8 | 75.0% | 12 | 1 | 13 | 92.3% | 1975 | — | — | — | — | 15 | 6 | 21 | 71.4% | 9 | 2 | 11 | 81.8% | — | — | — | — |
| 34 | 1978 | 4 | 2 | 6 | 66.7% | — | — | — | — | 8 | 2 | 10 | 80.0% | 16 | 8 | 24 | 66.7% | 1976 | — | — | — | — | 29 | 5 | 34 | 85.3% | 5 | 3 | 8 | 62.5% | — | — | — | — |
| 35 | 1979 | 17 | 3 | 20 | 85.0% | — | — | — | — | 12 | 5 | 17 | 70.6% | 7 | 5 | 12 | 58.3% | 1977 | — | — | — | — | 13 | 2 | 15 | 86.7% | 1 | 2 | 3 | 33.3% | 4 | 0 | 4 | 100.0% |
| 36 | 1980 | 5 | 1 | 6 | 83.3% | 3 | 2 | 5 | 60.0% | 3 | 1 | 4 | 75.0% | 28 | 11 | 39 | 71.8% | 1978 | — | — | — | — | 8 | 3 | 11 | 72.7% | — | — | — | — | 3 | 1 | 4 | 75.0% |
| 37 | 1981 | — | — | — | — | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 4 | 3 | 7 | 57.1% | 1979 | — | — | — | — | 5 | 1 | 6 | 83.3% | — | — | — | — | — | — | — | — |
| 38 | 1982 | 0 | 2 | 2 | 0.0% | 4 | 4 | 8 | 50.0% | 13 | 4 | 17 | 76.5% | 9 | 9 | 18 | 50.0% | 1980 | — | — | — | — | 23 | 6 | 29 | 79.3% | — | — | — | — | — | — | — | — |
| 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% | — | 10 | 7 | 17 | 58.8% | 320 | 78 | 398 | 80.4% | 28 | 14 | 42 | 66.7% | 19 | 12 | 31 | 61.3% |
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 | Helga Masthoff | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | |
| 24 | 1968 | 1865 | 141.1 | — | — | — | — | -83 | -273 | +141 | 87.2% | +2.72 | 6–2 (75%) | — | — | +1.76 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 25 | 1969 | 2056 | 154.1 | — | — | — | — | +176 | -365 | +42 | 75.5% | +2.11 | 12–5 (71%) | — | — | -3.94 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 26 | 1970 | 2181 | 166.1 | — | — | — | — | +139 | -229 | +41 | 75.0% | +2.11 | 11–5 (69%) | 0–1 | — | -9.32 | 1968 | 1730 | 128.1 | — | — | — | — | -162 | +89 | — | 66.7% | +1.31 | 7–8 (47%) | — | — | -1.04 |
| 27 | 1971 | 2303 | 170.6 | — | — | — | — | +240 | -117 | +9 | 84.6% | +2.55 | 20–4 (83%) | 16–4 (80%) | 116.1 | -6.69 | 1969 | 1907 | 137.1 | — | — | — | — | -313 | +115 | — | 74.0% | +1.89 | 8–7 (53%) | — | — | -0.20 |
| 28 | 1972 | 2378 | 173.1 | — | — | — | — | +144 | -67 | +84 | 82.1% | +2.37 | 13–3 (81%) | 8–7 (53%) | 102.1 | -8.73 | 1970 | 2047 | 159.4 | — | — | — | — | -330 | +75 | -427 | 79.6% | +2.22 | 6–5 (55%) | — | — | -5.92 |
| 29 | 1973 | 2349 | 168.6 | — | — | — | — | +152 | -82 | +159 | 82.7% | +2.42 | 8–5 (62%) | 9–5 (64%) | 100.8 | -4.79 | 1971 | 2084 | 146.6 | — | — | — | — | -311 | +124 | -455 | 72.0% | +1.78 | 17–3 (85%) | 2–2 (50%) | 105.8 | -1.82 |
| 30 | 1974 | 2327 | 171.4 | — | — | — | — | +153 | -73 | +194 | 81.8% | +2.54 | 10–2 (83%) | 3–2 (60%) | 104.2 | -3.91 | 1972 | 2024 | 152.0 | — | — | — | — | -290 | +162 | — | 69.4% | +1.51 | 4–1 (80%) | 3–0 (100%) | — | -3.25 |
| 31 | 1975 | 2391 | 169.1 | — | — | — | — | +33 | — | +109 | 85.7% | +2.70 | 2–2 (50%) | 2–0 | — | -2.95 | 1973 | 2088 | 160.2 | — | — | — | — | -369 | +126 | -344 | 72.2% | +1.77 | 8–3 (73%) | 3–5 (38%) | 101.3 | -2.46 |
| 32 | 1976 | 2337 | 113.7 | — | — | — | — | +67 | — | — | 50.0% | -0.13 | — | 1–0 | — | -0.15 | 1974 | 2019 | 153.9 | — | — | — | — | — | +99 | -212 | 67.5% | +1.24 | 8–2 (80%) | 2–2 (50%) | 102.8 | -3.17 |
| 33 | 1977 | 2398 | 164.8 | — | — | — | — | +140 | -140 | +131 | 76.9% | +1.69 | 16–1 (94%) | 5–0 (100%) | 111.3 | -3.92 | 1975 | 1999 | 142.8 | — | — | — | — | — | +76 | -105 | 71.6% | +1.26 | 7–3 (70%) | 6–3 (67%) | 104.5 | -0.41 |
| 34 | 1978 | 2337 | 167.5 | — | — | — | — | +44 | — | +160 | 73.7% | +1.86 | 2–6 (25%) | 3–1 (75%) | 92.9 | -4.22 | 1976 | 1951 | 146.9 | — | — | — | — | — | +125 | -61 | 76.1% | +2.14 | 6–2 (75%) | 1–2 (33%) | 99.7 | +1.10 |
| 35 | 1979 | 2185 | 156.7 | — | — | — | — | +75 | — | +139 | 71.4% | +1.51 | 8–8 (50%) | 9–4 (69%) | 94.9 | -3.21 | 1977 | 1941 | 128.5 | — | — | — | — | -150 | +143 | -91 | 75.5% | +1.73 | 4–1 (80%) | 3–1 (75%) | 103.1 | +2.07 |
| 36 | 1980 | 2152 | 165.5 | — | — | — | — | +100 | +122 | +192 | 69.4% | +1.09 | 9–6 (60%) | 11–4 (73%) | 100.7 | -3.21 | 1978 | 1895 | 134.2 | — | — | — | — | -97 | +128 | — | 68.4% | +1.55 | 2–2 (50%) | 1–0 | — | +1.22 |
| 37 | 1981 | 2044 | 121.4 | — | — | — | — | +105 | — | — | 44.4% | -0.67 | — | — | — | -0.51 | 1979 | 1930 | 131.0 | — | — | — | — | — | +128 | — | 85.7% | +2.86 | 1–0 | 1–1 | — | +0.26 |
| 38 | 1982 | 1941 | 150.4 | — | — | — | — | -6 | +196 | +304 | 56.2% | +0.42 | 12–7 (63%) | 7–5 (58%) | 98.0 | -2.64 | 1980 | 1873 | 133.5 | — | — | — | — | — | +139 | — | 73.1% | +1.86 | 7–5 (58%) | 3–2 (60%) | 97.5 | +1.56 |
| 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 | — | 2114 | 153.3 | — | — | — | — | -250 | +115 | -205 | 72.9% | +1.76 | 85–42 (67%) | 25–18 (58%) | 104.1 | -2.42 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Rosie Casals | 34 | 6 | 40 | Jun 26, 1983 | H2H |
| Virginia Wade | 21 | 8 | 29 | Mar 13, 1981 | H2H |
| Francoise Durr | 22 | 7 | 29 | Oct 27, 1977 | H2H |
| Kerry Reid | 20 | 8 | 28 | Jun 22, 1979 | H2H |
| Nancy Richey | 17 | 9 | 26 | Apr 1, 1977 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Katja Ebbinghaus | 10 | 2 | 12 | Jul 11, 1976 | H2H |
| Gail Sherriff | 7 | 3 | 10 | Apr 10, 1978 | H2H |
| Evonne Goolagong | 3 | 6 | 9 | Dec 20, 1975 | H2H |
| Christina Sandberg | 7 | 1 | 8 | May 15, 1976 | H2H |
| Judy Tegart | 4 | 4 | 8 | Dec 26, 1975 | H2H |