Given the question: What key details about david berkoff  can be extracted from the following bio?  Bio: david charles berkoff -lrb- born november 30 , 1966 -rrb- is an american former competition swimmer , olympic champion , and former world record-holder in two events . berkoff was a backstroke specialist who won a total of four olympic medals during his career at two different olympic games . he is best known for his powerful underwater start , the eponymous `` berkoff blastoff '' . at the 1988 summer olympics in seoul , south korea , he won a gold medal by swimming the backstroke leg for the winning u.s. men 's team in the men 's 4x100-meter medley relay in the event final . individually , he also won a silver medal by placing second in the men 's 100-meter backstroke event . four years later at the 1992 summer olympics in barcelona , spain , berkoff earned another gold medal by swimming for the winning u.s. team in the preliminary heats of the men 's 4x100-meter medley relay . he also won a bronze medal by placing third in the 100-meter backstroke . berkoff was inducted into the international swimming hall of fame as an `` honor swimmer '' in 2005 .
The answer is:
- nicknames is `` dave ''- weight is 154 lb kg on- height is 5 ft 9 in m on- strokes is backstroke- fullname is david charles berkoff- birth date is 30 november 1966- name is david berkoff- club is upper moreland gator swim club- birth place is abington , pennsylvania- collegeteam is harvard university