
United States
| Age | 76 (25-09-1949) |
| Country | |
| Birthplace | |
| Height | |
| Weight | |
| Plays | |
| Backhand | |
| Favorite Surface | |
| Coach | |
| Turned Pro | |
| Player Status | Inactive |
| Berkeley CH | ||||||
21 Jul 1986 R3 | 6 1 6 1 | L | H2H 0-0 | |||
| Berkeley CH | ||||||
29 Apr 1985 R3 | 6 3 3 6 6 3 | W | H2H 0-0 | |||
29 Apr 1985 R4 | 6 2 6 2 | L | H2H 0-0 | |||
29 Apr 1985 R2 | 6 3 4 6 6 2 | W | H2H 0-0 | |||
| year | All | hard | clay | indoor | grass |
| 1986 | 0-1 | 0-1 | 0-0 | 0-0 | 0-0 |
| 1985 | 2-1 | 2-1 | 0-0 | 0-0 | 0-0 |
| 1984 | 0-5 | 0-2 | 0-2 | 0-0 | 0-1 |
| 1983 | 13-19 | 1-6 | 7-5 | 3-4 | 2-4 |
| 1982 | 23-22 | 6-9 | 4-3 | 3-4 | 10-6 |
| 1981 | 18-19 | 11-9 | 2-3 | 2-5 | 3-2 |
| 1980 | 5-5 | 3-3 | 0-0 | 2-2 | 0-0 |
| 1979 | 5-13 | 0-3 | 2-5 | 2-4 | 1-1 |
| 1978 | 16-25 | 1-5 | 13-9 | 2-8 | 0-3 |
| 1977 | 47-24 | 7-8 | 19-5 | 21-9 | 0-2 |
| 1976 | 18-23 | 3-3 | 12-10 | 3-8 | 0-2 |
| 1975 | 31-26 | 12-10 | 7-9 | 9-5 | 3-2 |
| 1974 | 25-26 | 9-10 | 13-11 | 1-2 | 2-3 |
| 1973 | 17-30 | 7-7 | 6-11 | 3-9 | 1-3 |
| 1972 | 17-24 | 9-9 | 1-5 | 7-9 | 0-1 |
| 1971 | 26-20 | 11-10 | 6-5 | 5-2 | 4-3 |
| 1970 | 6-7 | 1-1 | 2-3 | 0-1 | 3-2 |
| 1969 | 3-2 | 3-1 | 0-1 | 0-0 | 0-0 |
| 1968 | 6-11 | 4-2 | 1-2 | 0-1 | 1-6 |
| Grand Slam | 46.4% | 26 / 30 |
| Masters | 50.0% | 14 / 14 |
| Main Tour | 48.8% | 251 / 263 |
| Cups | 0.0% | 0 / 0 |
| Challengers | 44.4% | 4 / 5 |
| Futures | 0.0% | 0 / 0 |
| Vs No.1 | 25.0% | 4 / 12 |
| Vs Top.5 | 15.4% | 8 / 44 |
| Vs Top.10 | 16.3% | 16 / 82 |
| Vs Top.20 | 16.5% | 32 / 162 |
| Vs Top.50 | 26.8% | 88 / 240 |
| Vs Top.100 | 34.9% | 179 / 334 |
| Overall | 46.9% | 382 / 432 |
| Hard | 43.2% | 134 / 176 |
| Clay | 54.7% | 191 / 158 |
| Indoor | 0.0% | 0 / 0 |
| Grass | 36.8% | 57 / 98 |
| Final | 65.2% | 15 / 8 |
| Semi-Final | 50.0% | 21 / 21 |
| Quarter-Final | 37.1% | 39 / 66 |
| Fourth | 44.0% | 95 / 121 |
| Third | 49.9% | 194 / 195 |
| Second | 44.0% | 110 / 140 |
| First | 57.1% | 36 / 27 |
![]() Jeff Borowiak | Draw VIEW H2H | ![]() Brian Gottfried | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Tomas Smid | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Jimmy Connors | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Brian Teacher | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Raul Ramirez | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Guillermo Vilas | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Tim Gullikson | ||
![]() Jeff Borowiak | Wins VIEW H2H | ![]() Willem Prinsloo | ||
![]() Jeff Borowiak | Wins VIEW H2H | ![]() Mark Cox | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Hank Pfister | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Billy Martin | ||
![]() Jeff Borowiak | Loss VIEW H2H | ![]() Tom Gorman | ||
Ribecai Silva Prediction H2H (0-0)
Djere Tseng Prediction H2H (0-1)
Cherubino Krom Prediction H2H (0-0)
Mochizuki Bertola Prediction H2H (1-2)
Karma Schlageter Prediction H2H (0-0)
Voljavec Kuzmanov Prediction H2H (0-0)
Francisco Rocha Fabrizio Andaloro Prediction H2H (0-0)